I don't know if anyone's commented this one before, but I've found a pretty helpful hint for memorizing Threonine with phonetics. This amino acid has three oxygens and nine hydrogens; so if I'm given the structure and am asked to name what the amino acid it is, I'll count the oxygens and hydrogens in the molecule; it's a bit of a stretch, but I think in my head "THREe Oxygens and NINE hydrogens" (which spells out THREONINE if you use the capitalized letters). Hope this helps someone else as much as it helps me!
To memorize the single letter abbreviations for Tyrosine, Tryptophan, and Phenylalanine I think of the song "Young, Wild, and Free" by Wiz Khalifa and Snoop Dogg. The first letter of each of those words represents the three amino acids so Young would be for Tyrosine, Wild would be for Tryptophan, and Free would be for Phenylalanine. Hope this helps and thanks for this video!
I never comment on UA-cam, but this video a blessing! I have always struggled with memorizing dry facts with no apparent "connections", but visually incorporating the amino acid letters makes memorizing surprisingly easy. Thanks for this amazing video and to whomever came up with this brilliant method, it will definitely help me prepare for my medical exams :)
For anyone who is wondering if this is a good video. It is AMAZING. Even if you are learning the three letter abbreviation instead of the 1 letter it does a FANTASTIC job. I learned 5 at a time and kept rewriting them. All in all it took me a little less than 2 hours to completely memorize them last night. I took hour breaks and STILL remembered them. I woke up this morning and rewrote them all and still knew them! WORTH THE WATCH. ***NOTE: Proline is a little incorrect. When drawing the structure, the original NH3 should "turn into" an NH2. The way I think of it is the tail of the P that the narrator uses to draw the structure actually goes through the NH3 when he draws it and that should cause one of the Hydrogens in NH3 to "splice" off forming NH2 instead.
I can't thank you enough for making this video. I had a chem exam last Friday where we had to be able to identify residues along polypeptide chains, along with their characteristics, and I thought I would be a goner! I watched this through a few times, and was shocked at how quickly I memorized the structures. It cut my studying time down by a lot, and I sailed through that section on the exam with no problem. Thank you!!!!!!
korisx Had a professor who told me than when you cry, it's a sign that you are almost there... so keep it up and cry:) My Biochem class is making me cry-puke:)
I think this video is really cool. I memorized all structures literally in 40 minutes. Watched it 2 times and drew it all out myself. Amazing. Thanx a lot
AWESOME! I had these memorized in one run through the video. I tested myself hours later and I just switched up the double bonds on Histidine. Good work!
OMG i've been trying to memorize these forever and i was unsuccessful, not even close, until i watch this video this morning before my biochem quiz, and voila' i drew all 20 amino acids in less than ten minutes. great video..i should've found you guys earlier!!!
Thank you!!! I know you've all graduated by now and busy doing residencies but can you please come back and do more videos? These 2 videos are amazing!!!
I find it simpler to build the molecule incrementally and bind a name of the amino acid at each step. For example, Amino is -NH2 and Carboxylic acid is -COOH, so attaching both to an alpha-carbon in the middle creates the simplest amino acid - Glycine (Gly = G = H2N-CH2-COOH and then generalize the side-chain to H2N-CH(R)-COOH). Now all Amino acids can be created by starting with a side-chain (R) of -CH3 (methyl group) creating Alanine (A = Ala) and then replace H with alcohol and acid groups e.g. -OH (S = Ser = Serine). Oxygen can be replaced with Sulphur or Selenium from the same family in the periodic table, to get C = Cys = Cystein and U = Sec = Seleno-Cystein. This process continues by replacing -OH with -COOH through Aspartic and Glutamic acid and ends in Tryptophan (W) covering all 22 amino acids (including O = Pyl = Pyro-Lysine). Perhaps I should make a video if this method works for others. It is wonderful to see so many different ways in which human mind remembers these complex 3D structures Everyone has their own unique way of memorizing.
One way to classify "special" smells is to smell the twenty basic twenty amino acids, remember them, and classify any "special" smell under the category of one of the twenty amino acids. I did that over forty years ago, and I have tables of correspondence tables that have the twenty basic amino acids corresponding to analogous things: > 1. itza, don, decider, alanine, dice: 4&2 > 2. imix, drun, distributor, glycine, 6&1 > 3. ik, ceph, memory, aspartic acid, 3&3 > 4. akbal, graph, encoder, tryptophan, 3&5 > 5. kun, un, extruder, hydroxyproline, 1&1 > 6. chachuen, fam, EPR, methionine, 6&5 > 7. cimi, orth, supporter, tyrosine, 6&2 > 8.*oc, tal, producer, threonine, 4&4 > 9. lamat, vau, internal trn., valine, 5&5 > 10. muluc, gon, output trn., glutamine, 4&5 > 11.*manic, pe, ingestor, lycine, 4&6 > 12. chuen, ged, storage, phenylalanine, 2&5 > 13. eb, med, channel&net, asparagine, 3&6 > 14. ben, gizga, EPA, cysteine, 1&3 > 15. ix, ur, reproducer, proline, 2&3 > 16. menn, mals, decoder, serine, 6&6 > 17. kib, veh, motor, histidine, 1&2 > 18. caban, pal, boundary, glutamic acid,1&5 > 19. eznab, nahath, input trn., leucine, 2&2 > 20. cuac, ger, associator, isoleucine, 4&1 > 21. ahau, gal, converter, arginine, 4&3 > *: These have been exchanged in modern times. EPR is > Entropy Prodction Rate. EPA is Entropy Production > Acceleration. And, trn. is transducer. was too obscure for you. These words have meanings in different languages. For example, let's take the last one here, #21, ahau means flower, and is one of the twenty Mayan calendrical symbols. It was amazing; Dr. John Dee, in the Sixteenth Century, presented the Enochian alphabet, whose names don't sound like the letters they represent, but, the names of these twenty-one letters mean the same as Dr. James Miller's subsystems in his book "Living Systems", the primary text book of living systems dynmaics. For example in #21 the word "gal" is the pre-Aryan word for the living systems subsystem the "converter". One of the twenty amino acids produced from the DNA code, in this case "arginine", is represented here. The extra amino acid in this system is hydroxyproline, which is produced from a code in the "junk" DNA, the most important product of the "junk" DNA. The DNA code is composed of combinations of four nucleic acids, giving 64 different combinations, like the Yi Jing. But, most of the basic 20 amino acids are produced from more than one of these combinations. These 20 amino acids compose proteins which build the body and assemble other compounds together to compose our complete body. There are seven levels of living systems: cells, organs, entities (like us, animals, and plants), groups (like families, gangs, teams, etc.), organizations, societies, and suprasocietal living systems. All of these depend upon their 21 subsystems. If any subsystem is missing, a higher living system must provide a substitute, or, that living system with the missing subsystem will die. The number combinations at the end of each line of correspondences represent the combinations of dice symbols, which have symbols to represent them: 1, . ; 2, U ; 3, / ; 4, O ; 5, X ; and 6, = . You will notice that these symbols span the usual dice symbols. Now we combine these six into 21 symbols. The way I've seen the 4&3 drawn is a circle with a vertical diameter, which also represents the lette D. So, each one of these also represents a letter. Also, of coincidence for English speaking people, the compination for B is 4&6, which is a cicle with a horizontal parallel in it that makes this symbol look like a bumble bee (B). Since we use these subsystems all the time it is organizing to notice them. For example, when we go grocery shopping for our family, we become the ingestor by getting the groceries, extruder by extruding the money to pay for the groceries, distributor by bringing the groceries to our family, and then we use the storage subsystem of our family (group) by storing the groceries where they are stored. And, if we decided what to buy, we were also the decider for our family. But, every group, organization, society, and suprasocietal living system, has a decider that has been called a group mind. The Greek for "group spirit" is "demon", which comes from the Greek root "dem" from which we get the word "democracy". So, we have the group mind to help us. Then, that's literally "demonic". The group entity is a magnetic flux circulating through all the medullas in the brains of all the group's members. But, us Christians are only supposed to have Jesus Christ as our group mind, "having the mind of Christ", and, being members of the "Body of Christ". In the Middle Ages the ranks of these fallen "angels" were defined. The demon of a group was called an angel; for an organization, an archangel; for a society, a principality; and for a suprasocietal living system, a power. Now you can see what was meant, "We fight not flesh and blood; we fight principalities and powers". To kill an evil principality,, we'll take Massachusetts as an example. Divide the state into two new states: east of the Conneticut River we'll name Eastwick; and, west of the Conneticut river we'll name Berkshire. Then watch the nasty, nit picking Massachusetts Souls turn nice. Smelling licorice is like, but easier than, transcendental meditation. Licorice is synesthetically onomatopoeic to a hollow cylinder, and it stirs closed circuitry in the brain that goes confluent with the circuit that is the entity so that near nonexistence, nirvana, is experienced. Everything is actually striving for nonexistence. Nonexistence is the ultimate essence of pleasure. The corresponding sound, the sound of a hollow cylinder, pronounced "eyennn", like the German word for one, "ein", means "nothingness", aleph yod nun", in Hebrew, and is onomatopoeic by meaning a well, but, it also means an eye and a ring. The movie "The Ring" plays upon this, the "lost word".
The tyrosine should have a 120 degree angle between the bond of the beta carbon and carbon 4 of the phenyl. Some may draw a straight line and get marked down for missing a CH2. Good video though.
overall, good video. Just wanted to add that one could in fact work in an "S" shape when drawing Serine. Tracing the path from the OH to the NH3 makes a rough S shape.
This is an awesome video, the mass amount of info needed to memorize in some of these science course's, any little tricks help. I am gearing up for a bio chem exam, and this is how I will memorize these structures. Thanks so much! I think you do need to know these for med school? I know at least Pharmacy School is heavy in biochem, so I'd assume first year med school isn't largely different?
For proline at physiological pH it may also be helpful to show that the amino group is protonated to NH2+ (the video makes it seem like it might be NH3+)
Tyrosine: Tire-sine --> Tire --> Circle --> Phenol group = Circle --> Why (Y) do people drink Alcohol (OH) and drive but can still parallel (Para) park
This was super helpful! Thank you! Any tricks on how to memorize which are polar/non-polar? I know I will probably get some mixed up on my test next week (yes I have a cell bio test the second week back LOL @ me...) but yay senior year of college! Let me know!
Corrections: There's 20 amino acids not 21, Z is not an AA.I think the table needs to be corrected to an updated version from a reliable source. Proline's backbone changes from NH3 to NH2 and a + charge. In Tryptophan you are missing an H next to the N in the ring (don't assume is there). It's a great video! BUT IT NEEDS TO BE UPDATED!
That's a really helpful hint! also this is kinda weird but i find it helps to remember that ThYROid Hormones are derived from TYROsine so they have the aromatic ring (google thyroxine and Triiodothyronine if you dont know what rambling about). Yea its kind of a stretch to remember i know. :P
I remember Tryptophan's code bc my biochem prof said it's the Widest amino acid. But this video helped so much with putting the N in the right place. I mess up the nitrogen location and where the double bond goes in the 5 member ring sometimes. Thanks!
I feel like on a few of your drawings, such as Tryptophan, you did not add the extra Carbon in between the benzene ring and the alpha Carbon. It should be Carbon (alpha) - Carbon - Benzene... Right?
This is great guys. Thanks. Note fore proline, shouldn't the NH3+ be changed to an NH2+? Also, if it help "P" in proline is like P in pentagon for 5 membered ring.
Would you be able to post the previous version of this video? That was how I memorized it for the MCAT. Now that I'm in med school I am trying to refresh it but this is different and I wish I could watch the older version.
I good trick for tyrosine is just to think of the TYRO part as TIRE. tires are round, so you know that tyrosine will have a "round"/cyclic ring on it :) just remember to add the OH haha. I mainly use it when i get confused between tyrosone and threonine
this is so on point...even when you say 'you have to really stretch' lol as long as you stretch when he tells you to..use your imagination!!..you will get this..thanks for the upload!
Thanks for the video -- really helpful for rememorizing the structures and some name tricks! If you ever remake it, definitely be a bit more clear about the angle between the beta carbon and the R side chain -- sometimes it seems like you're putting a straight line and it could be confusing if you're not very familiar with the structures yet (like for F).
but proline is a little bit wrong, when you paint the five member ring one must take away one H from the H3N+ since N will form a new bond sorry for bad english
To memorize glycine and alanine, you just need to think of the letters that come behind the one letter abbreviations in the alphabet: Glycine, G the next letter in the alphabet is H and for glycine you just have to add two H's, same for Alanine, A the next letter is B which is almost the same as the letter bèta so you know you just have to add 1 bèta carbon
Just thought that maybe for tyrosine you could say there's a "tire" in the middle connecting the backbone with the hydroxyl group. Otherwise this is soooooooooooooooooooooooooo helpful!!!!!
I LOVE THIS VIDEO, too bad I found it on the day before my biochemistry exam, I would have shared it with my class... I will, guess I'm gonna pass alone...
QUESTION! I noticed in this video that he draws the amino acids as zwitterions ( NH3+ & COO-). For the new 2015 MCAT, should I know to draw the amino acids the regular way (without the charges) or should I know how to draw them as zwitterions? Please help! Thanks!
+blabber9093 You should know how to do both; because they'll try to hit you with a given pH and ask how a certain AA behaves--which could possibly depend on the overall charge of the AA, which depends on pka, pH and protonation... (At least that's what I've seen in my practice tests)
cenasingh1010 really? that's rude.there are two extra ones for glutamic acid and aspartic acid. But in my class these are considered the same as glutamate and aspartate. so asx and glx are extras
Phenylalanine just has an aromatic, not a phenol group; that is, it has a ring but no alcohol. I always remember it because its name is somewhat of a misnomer.
I'm sure people have their own but this is how I remember the 1 Letters R-ginine GlutQmine GlutamicE acid LysineK AsparagiNe AsparDic acid Fenylalanine tYrosine and can't think of one for tryptophan but I know one of the letters is W so process of elimination.
Pyrrolysine exists only in a few archaea and bacteria, so it's pretty much irrelevant to everyone except microbiologists. I think selenocysteine is not in there because it's not coded for directly in the genetic code (plus it's pretty easy to remember that it's just cysteine with selenium instead of sulfur anyway). These are the 20 MAIN amino acids that most biologists should memorize.
I don't know if anyone's commented this one before, but I've found a pretty helpful hint for memorizing Threonine with phonetics. This amino acid has three oxygens and nine hydrogens; so if I'm given the structure and am asked to name what the amino acid it is, I'll count the oxygens and hydrogens in the molecule; it's a bit of a stretch, but I think in my head "THREe Oxygens and NINE hydrogens" (which spells out THREONINE if you use the capitalized letters). Hope this helps someone else as much as it helps me!
Thank you!
Thank you
Thanks a lot
5 years later and still super helpful, thank you!!!
To memorize the single letter abbreviations for Tyrosine, Tryptophan, and Phenylalanine I think of the song "Young, Wild, and Free" by Wiz Khalifa and Snoop Dogg. The first letter of each of those words represents the three amino acids so Young would be for Tyrosine, Wild would be for Tryptophan, and Free would be for Phenylalanine. Hope this helps and thanks for this video!
You're a teenager?
So what we get drunk
@@Antweezy So what we smoke weeeeed
Try Mordins Song From Mass Effect 3
ua-cam.com/video/BCAUaYpbHwY/v-deo.html
@@zacharyddrzipac We're just having fuuuun
List of contents:
Glycine 1:50
Alanine 2:30
Valine 2:45
Leucine 3:08
Isoleucine 3:28
Methionine 3:52
Proline 4:55
Phenylalanine 5:42
Tyrosine 6:25
Tryptophan 7:05
Serine 8:46
Threonine 8:56
I never comment on UA-cam, but this video a blessing! I have always struggled with memorizing dry facts with no apparent "connections", but visually incorporating the amino acid letters makes memorizing surprisingly easy. Thanks for this amazing video and to whomever came up with this brilliant method, it will definitely help me prepare for my medical exams :)
For anyone who is wondering if this is a good video. It is AMAZING. Even if you are learning the three letter abbreviation instead of the 1 letter it does a FANTASTIC job. I learned 5 at a time and kept rewriting them. All in all it took me a little less than 2 hours to completely memorize them last night. I took hour breaks and STILL remembered them. I woke up this morning and rewrote them all and still knew them! WORTH THE WATCH. ***NOTE: Proline is a little incorrect. When drawing the structure, the original NH3 should "turn into" an NH2. The way I think of it is the tail of the P that the narrator uses to draw the structure actually goes through the NH3 when he draws it and that should cause one of the Hydrogens in NH3 to "splice" off forming NH2 instead.
Good
Doesn't proline only have 1 hydrogen bonded to it? I thought it was NH in the ring
I can't thank you enough for making this video. I had a chem exam last Friday where we had to be able to identify residues along polypeptide chains, along with their characteristics, and I thought I would be a goner! I watched this through a few times, and was shocked at how quickly I memorized the structures. It cut my studying time down by a lot, and I sailed through that section on the exam with no problem. Thank you!!!!!!
So in order to memorise the 20 amino acids we have to memorise them first?
Holy shit Sherlock, you're a genius!
vennish11 then why does this make me cry!?
korisx Had a professor who told me than when you cry, it's a sign that you are almost there... so keep it up and cry:) My Biochem class is making me cry-puke:)
borgaroids believe me if I say I'm NOT almost there. And I'm crying
+borgaroids : I cried during Chem I, and since then I've done great in chemistry...lol. so that is a great point!
This is pretty awesome, I'm having to memorize all of these for Biochem right now. A lot of these helped a lot, so thank you!
I think this video is really cool. I memorized all structures literally in 40 minutes. Watched it 2 times and drew it all out myself. Amazing. Thanx a lot
Proline (P), P for penta, Penta means 'having 5', and Proline has a 5 member ring.
you guys are amazing! it's so cool that you share this with everybody!!
it would have helped me A LOT a few years ago.
thanks, guys!
where's my MCAT fam at?
stfu.
😭
You are carrying me through my MCAT studying journey ❤️❤️❤️
Found this extremely helpful. if you pay close attention, literally 20min is all it takes. dont even need to review the video several times.
I remember Serine by relating it to SOH CAH TOA. S has an OH; it's a bit of a stretch but it might help somebody.
It is used by french ppl for trigonometry
thank you
Those two videos are great! After watching them I can already distinguish between them in just 20min :)
One of the usefullest videos on UA-cam...thanks guys...Post what ever u can...it will somehow help us
you saved my life with this video
literally.
I've watched so many of these videos online and this is the first one that actually worked for me!!! :) THANK YOUUUU!!!!!!
Theorine is like Valine, just replace a one of the methyl groups from valine to an "OH". Personally i like to think T.V.
I hope this helps someone!
AWESOME! I had these memorized in one run through the video. I tested myself hours later and I just switched up the double bonds on Histidine. Good work!
I graduated my undergrad a few years ago yet I still come back to this video because it's just so good
Guys, if I pass my exam it's gonna be all on you and your 2 videos!!!! Thank you soooo much for this! I really appreciate it!
Dammn it’s been 9 years
how life is going with you
@@moe_abdelhaq8348 Ended up with a PhD
OMG i've been trying to memorize these forever and i was unsuccessful, not even close, until i watch this video this morning before my biochem quiz, and voila' i drew all 20 amino acids in less than ten minutes. great video..i should've found you guys earlier!!!
Thank you!!! I know you've all graduated by now and busy doing residencies but can you please come back and do more videos? These 2 videos are amazing!!!
tyrosine = (tire)-O-sine, it is a tire with an O
thanks
+Adnan Galeeb sine in tyrosine is like trigonometry where sine = opposite / hypotenuse and tyrosine has an OH group :)
oh! :O
this is pure innovation in memorizing!!
Americans have one of the best educational techniques, I miss the US
I find it simpler to build the molecule incrementally and bind a name of the amino acid at each step. For example, Amino is -NH2 and Carboxylic acid is -COOH, so attaching both to an alpha-carbon in the middle creates the simplest amino acid - Glycine (Gly = G = H2N-CH2-COOH and then generalize the side-chain to H2N-CH(R)-COOH). Now all Amino acids can be created by starting with a side-chain (R) of -CH3 (methyl group) creating Alanine (A = Ala) and then replace H with alcohol and acid groups e.g. -OH (S = Ser = Serine). Oxygen can be replaced with Sulphur or Selenium from the same family in the periodic table, to get C = Cys = Cystein and U = Sec = Seleno-Cystein. This process continues by replacing -OH with -COOH through Aspartic and Glutamic acid and ends in Tryptophan (W) covering all 22 amino acids (including O = Pyl = Pyro-Lysine). Perhaps I should make a video if this method works for others.
It is wonderful to see so many different ways in which human mind remembers these complex 3D structures Everyone has their own unique way of memorizing.
this is fantastic! I'm cramming for my first biochem exam tomorrow and this is really helpful-- Thank you so much for making this!
To remember Tryptophan is W: "double ring, double you". Double you sounds like "w" :)
showed my professor and she sent it to the whole class!!..great video guys
You are the best person on Earth for making this video. I love you.
omg i so love you!i never rly considered learning them like that!you make it seem sooooo easy!where were u when i had to take organic?thank you!
For Tyrosine and Phenylalanine Remember: "Tyrosine is Tryna Look Like Phenylalanine"
Tyrosine is just a Phenylalanine with an "OH" group.
Very helpful when you have your exam just one hour away!
Thank you for the help. One thing to mention is that in Proline, the NH3+ will become NH2+ in the five-member ring.
Best Video ever👍🏼 listend to the explanation a year ago and still know how to draw all of them
I'm a student in the premed path at harvard university, and this was, by far, the most useful video for my biochemistry class. Thank you!
THIS WAS A LIFE SAVER! And it actually works! Thank you guys soooo much!!!
Never seen anything more brilliant in my life
don't know how to say thanks!! you guys are amazing! this video helped me over and over again!
You added an extra carbon on Methionine, but everything else is so helpful! Thank you so much!
For Tryptophan, just know that Turkey has a lot of tryptophan, so think of it as Wild Turkey, to remember the W for it.
Thanks Shalin. Truly helpful
lmao wow I didn't think anyone wanna gonna see the comment haha
One way to classify "special" smells is to smell the twenty basic twenty amino acids, remember them, and classify any "special" smell under the category of one of the twenty amino acids. I did that over forty years ago, and I have tables of correspondence tables that have the twenty basic amino acids corresponding to analogous things:
> 1. itza, don, decider, alanine, dice: 4&2
> 2. imix, drun, distributor, glycine, 6&1
> 3. ik, ceph, memory, aspartic acid, 3&3
> 4. akbal, graph, encoder, tryptophan, 3&5
> 5. kun, un, extruder, hydroxyproline, 1&1
> 6. chachuen, fam, EPR, methionine, 6&5
> 7. cimi, orth, supporter, tyrosine, 6&2
> 8.*oc, tal, producer, threonine, 4&4
> 9. lamat, vau, internal trn., valine, 5&5
> 10. muluc, gon, output trn., glutamine, 4&5
> 11.*manic, pe, ingestor, lycine, 4&6
> 12. chuen, ged, storage, phenylalanine, 2&5
> 13. eb, med, channel&net, asparagine, 3&6
> 14. ben, gizga, EPA, cysteine, 1&3
> 15. ix, ur, reproducer, proline, 2&3
> 16. menn, mals, decoder, serine, 6&6
> 17. kib, veh, motor, histidine, 1&2
> 18. caban, pal, boundary, glutamic acid,1&5
> 19. eznab, nahath, input trn., leucine, 2&2
> 20. cuac, ger, associator, isoleucine, 4&1
> 21. ahau, gal, converter, arginine, 4&3
> *: These have been exchanged in modern times. EPR is
> Entropy Prodction Rate. EPA is Entropy Production
> Acceleration. And, trn. is transducer.
was too obscure for you. These words have meanings in different languages. For example, let's take the last one here, #21, ahau means flower, and is one of the twenty Mayan calendrical symbols.
It was amazing; Dr. John Dee, in the Sixteenth Century, presented the Enochian alphabet, whose names don't sound like the letters they represent, but, the names of these twenty-one letters mean the same as Dr. James Miller's subsystems in his book "Living Systems", the primary text book of living systems dynmaics.
For example in #21 the word "gal" is the pre-Aryan word for the living systems subsystem the "converter". One of the twenty amino acids produced from the DNA code, in this case "arginine", is represented here. The extra amino acid in this system is hydroxyproline, which is produced from a code in the "junk" DNA, the most important product of the "junk" DNA.
The DNA code is composed of combinations of four nucleic acids, giving 64 different combinations, like the Yi Jing. But, most of the basic 20 amino acids are produced from more than one of these combinations. These 20 amino acids compose proteins which build the body and assemble other compounds together to compose our complete body.
There are seven levels of living systems: cells, organs, entities (like us, animals, and plants), groups (like families, gangs, teams, etc.), organizations, societies, and suprasocietal living systems. All of these depend upon their 21 subsystems. If any subsystem is missing, a higher living system must provide a substitute, or, that living system with the missing subsystem will die.
The number combinations at the end of each line of correspondences represent the combinations of dice symbols, which have symbols to represent them: 1, . ; 2, U ; 3, / ; 4, O ; 5, X ; and 6, = . You will notice that these symbols span the usual dice symbols.
Now we combine these six into 21 symbols. The way I've seen the 4&3 drawn is a circle with a vertical diameter, which also represents the lette D. So, each one of these also represents a letter. Also, of coincidence for English speaking people, the compination for B is 4&6, which is a cicle with a horizontal parallel in it that makes this symbol look like a bumble bee (B).
Since we use these subsystems all the time it is organizing to notice them. For example, when we go grocery shopping for our family, we become the ingestor by getting the groceries, extruder by extruding the money to pay for the groceries, distributor by bringing the groceries to our family, and then we use the storage subsystem of our family (group) by storing the groceries where they are stored. And, if we decided what to buy, we were also the decider for our family.
But, every group, organization, society, and suprasocietal living system, has a decider that has been called a group mind. The Greek for "group spirit" is "demon", which comes from the Greek root "dem" from which we get the word "democracy". So, we have the group mind to help us. Then, that's literally "demonic".
The group entity is a magnetic flux circulating through all the medullas in the brains of all the group's members. But, us Christians are only supposed to have Jesus Christ as our group mind, "having the mind of Christ", and, being members of the "Body of Christ".
In the Middle Ages the ranks of these fallen "angels" were defined. The demon of a group was called an angel; for an organization, an archangel; for a society, a principality; and for a suprasocietal living system, a power.
Now you can see what was meant, "We fight not flesh and blood; we fight principalities and powers". To kill an evil principality,, we'll take Massachusetts as an example. Divide the state into two new states: east of the Conneticut River we'll name Eastwick; and, west of the Conneticut river we'll name Berkshire. Then watch the nasty, nit picking Massachusetts Souls turn nice.
Smelling licorice is like, but easier than, transcendental meditation. Licorice is synesthetically onomatopoeic to a hollow cylinder, and it stirs closed circuitry in the brain that goes confluent with the circuit that is the entity so that near nonexistence, nirvana, is experienced. Everything is actually striving for nonexistence. Nonexistence is the ultimate essence of pleasure. The corresponding sound, the sound of a hollow cylinder, pronounced "eyennn", like the German word for one, "ein", means "nothingness", aleph yod nun", in Hebrew, and is onomatopoeic by meaning a well, but, it also means an eye and a ring. The movie "The Ring" plays upon this, the "lost word".
The tyrosine should have a 120 degree angle between the bond of the beta carbon and carbon 4 of the phenyl. Some may draw a straight line and get marked down for missing a CH2. Good video though.
overall, good video. Just wanted to add that one could in fact work in an "S" shape when drawing Serine. Tracing the path from the OH to the NH3 makes a rough S shape.
This is an awesome video, the mass amount of info needed to memorize in some of these science course's, any little tricks help. I am gearing up for a bio chem exam, and this is how I will memorize these structures. Thanks so much!
I think you do need to know these for med school? I know at least Pharmacy School is heavy in biochem, so I'd assume first year med school isn't largely different?
i love this man's voice
+misslaaaura YESSS and that laugh at 1:32
For proline at physiological pH it may also be helpful to show that the amino group is protonated to NH2+ (the video makes it seem like it might be NH3+)
I have a biochem exam in like 20 minutes, and this is the one thing I didn't study...until now :D:D thanks a lot!
how was it???
Amazing video watched it at 5 am for a test at 8 am didn't study my amino acid structures at al and got 4 out 5 right
life saver you are....thank you... I love learning by heart like this :)
now I can focus on properties and understand each completely
Awesome! You've made memorizing these structures a snap!
Tyrosine: Tire-sine --> Tire --> Circle --> Phenol group = Circle --> Why (Y) do people drink Alcohol (OH) and drive but can still parallel (Para) park
S comes before T, So Serine is a theronine minus a substituent :) That's how I remember it!
This was super helpful! Thank you! Any tricks on how to memorize which are polar/non-polar? I know I will probably get some mixed up on my test next week (yes I have a cell bio test the second week back LOL @ me...) but yay senior year of college! Let me know!
Corrections: There's 20 amino acids not 21, Z is not an AA.I think the table needs to be corrected to an updated version from a reliable source. Proline's backbone changes from NH3 to NH2 and a + charge. In Tryptophan you are missing an H next to the N in the ring (don't assume is there). It's a great video! BUT IT NEEDS TO BE UPDATED!
You're amazing and this video is so lovely to watch and very easy to remember, you just saved me. really!
That's a really helpful hint! also this is kinda weird but i find it helps to remember that ThYROid Hormones are derived from TYROsine so they have the aromatic ring (google thyroxine and Triiodothyronine if you dont know what rambling about). Yea its kind of a stretch to remember i know. :P
Hey ur video was real helpful....Can u plz tell me what did you use for drawing all those sketches?....then maybe i can also make videos like these.
I remember Tryptophan's code bc my biochem prof said it's the Widest amino acid. But this video helped so much with putting the N in the right place. I mess up the nitrogen location and where the double bond goes in the 5 member ring sometimes. Thanks!
I feel like on a few of your drawings, such as Tryptophan, you did not add the extra Carbon in between the benzene ring and the alpha Carbon. It should be Carbon (alpha) - Carbon - Benzene...
Right?
+Crist Gord he did, the change in color is supposed to be a carbon
Proline needs to lose a hydrogen at the amino group.
This is great guys. Thanks. Note fore proline, shouldn't the NH3+ be changed to an NH2+? Also, if it help "P" in proline is like P in pentagon for 5 membered ring.
Would you be able to post the previous version of this video? That was how I memorized it for the MCAT. Now that I'm in med school I am trying to refresh it but this is different and I wish I could watch the older version.
this vid rocks.
i knew all 20 aminos after only watching and practicing all the structures in an hour tops
I good trick for tyrosine is just to think of the TYRO part as TIRE. tires are round, so you know that tyrosine will have a "round"/cyclic ring on it :) just remember to add the OH haha. I mainly use it when i get confused between tyrosone and threonine
this is so on point...even when you say 'you have to really stretch' lol as long as you stretch when he tells you to..use your imagination!!..you will get this..thanks for the upload!
Thanks for the video -- really helpful for rememorizing the structures and some name tricks! If you ever remake it, definitely be a bit more clear about the angle between the beta carbon and the R side chain -- sometimes it seems like you're putting a straight line and it could be confusing if you're not very familiar with the structures yet (like for F).
On the NH3 side there should be a carbon right?cuz if you count for let's say alanine, your drawing shows 3 carbons but in reality there are 4 right?
My whole school uses this video lmao Our professor actually posts the link up. -University of Windsor says Thanks!!
What are you studying? Just curious.
Biochemistry :)
One way to remember the general structure of proline is that because it's "pro", it "bends backwards" (Pro as in pro in gymnastics or whatever).
Thank you so much. This video has really helped me in biochem!
but proline is a little bit wrong, when you paint the five member ring one must take away one H from the H3N+ since N will form a new bond
sorry for bad english
To memorize glycine and alanine, you just need to think of the letters that come behind the one letter abbreviations in the alphabet: Glycine, G the next letter in the alphabet is H and for glycine you just have to add two H's, same for Alanine, A the next letter is B which is almost the same as the letter bèta so you know you just have to add 1 bèta carbon
Maria there's a C in between the OH and methyl group. That carbon is beta because the C from the CH is alpha
Just thought that maybe for tyrosine you could say there's a "tire" in the middle connecting the backbone with the hydroxyl group. Otherwise this is soooooooooooooooooooooooooo helpful!!!!!
you made a little bit mistake of the Proline and its all awesome,thank you !!
Tyrosine - Tyre-OH-sine
Phenyl looks like a TIRE, round with the aromatic circle (hub cap). OH is the alcohol group, all attached in a line.
Thank you for creating this video! so nice of you to share :)
Wow, this is very very helpful! Thank you so much for putting this together.
must of been an M1 to be so grateful and share with your classmates
I LOVE THIS VIDEO, too bad I found it on the day before my biochemistry exam, I would have shared it with my class...
I will, guess I'm gonna pass alone...
Great video, I learned the amino acids pretty fast with your amino acids
You may know that that the symbol of Tungsten is 'w'. similarly remember that Tryptophan one word substitute is 'w'. this might help many people.
For proline that NH3 group loses a hydrogen atom to form the cyclic group and is just NH2 now right?
Your video is just fantastic, I love you!!! ... greetings from Houston Texas!!!
this video definitely helped. I look at the 20 amino acids in my textbook and they just scream at me
Shouldn't the (NH3)+ group at proline become NH2 since the nitrogen is binded to another carbon?
For proline,would NH3+ in the ring the break the octet rules? I only see NH2+ in the ring before.
To help memorize Threonine, Thr, T. Remember that some Brits like to enjoy their "T"ea with alcohol (OH). Helped me memorize it at least.
QUESTION! I noticed in this video that he draws the amino acids as zwitterions ( NH3+ & COO-). For the new 2015 MCAT, should I know to draw the amino acids the regular way (without the charges) or should I know how to draw them as zwitterions? Please help! Thanks!
+blabber9093 You should know how to do both; because they'll try to hit you with a given pH and ask how a certain AA behaves--which could possibly depend on the overall charge of the AA, which depends on pka, pH and protonation... (At least that's what I've seen in my practice tests)
+FK S Thank you! Good luck to you on your MCAT :)
Why are there 22 amino acids on the list @ 1:31?
wow you're a stupid ass bitch haha jk not jk real srs use brain pls
cenasingh1010 really? that's rude.there are two extra ones for glutamic acid and aspartic acid. But in my class these are considered the same as glutamate and aspartate. so asx and glx are extras
that was a troll comment, didn't mean to hurt feelings, sorry :)
+cenasingh1010 You need to learn how to troll then...that isn't trolling.
+cenasingh1010 1/20
How many hydrogens should be attached to the nitrogen in Proline? And what would be the formal charge?
Kelvin Alvarez since one bond of nitrogen has increased, now one hydrogen must be removed and it becomes NH2+ . so the formal charge becomes 1.
Phenylalanine just has an aromatic, not a phenol group; that is, it has a ring but no alcohol. I always remember it because its name is somewhat of a misnomer.
I'm sure people have their own but this is how I remember the 1 Letters
R-ginine
GlutQmine
GlutamicE acid
LysineK
AsparagiNe
AsparDic acid
Fenylalanine
tYrosine
and can't think of one for tryptophan but I know one of the letters is W so process of elimination.
Pyrrolysine exists only in a few archaea and bacteria, so it's pretty much irrelevant to everyone except microbiologists. I think selenocysteine is not in there because it's not coded for directly in the genetic code (plus it's pretty easy to remember that it's just cysteine with selenium instead of sulfur anyway). These are the 20 MAIN amino acids that most biologists should memorize.
Isn't tirosine supposed to go sideways so you can see the beta carbon? The way you drew it only has the alfa...?? HELP
Extremely helpful, thank you putting this video together
for proline since the nitrogen is part of the ring, doesn't it loose a hydrogen?
Yes