Lac Operon
Вставка
- Опубліковано 29 січ 2008
- NDSU Virtual Cell Animations Project animation 'Lac Operon'. For more information please see vcell.ndsu.edu/animations
The Lac Operon is an example of an inducible system of gene expression. Its default state is to be inactive. Only when the right catalyst is added to the system, in this case the sugar lactose, is the process activated, allowing the genes in question to be expressed.
i really find that 3D visuals of the molecules really help my brain much much better than simple 2D squares etc. Really good video
surya grahan
And much better than a bunch of words, especially, if not put together in a comprehensible manner !
There's no point complicating simple stuff :)
@@mdsouthcarolina6143 hiruniws
100%✔✔✔
Absolutely yarr... it's made me easy to understand this topic 🤟
It was really simple and visualisation makes it simpler to understand. Class 12th (biology) students from India might find it very helpful.
Hey do you wanna message one another, I’m also grade 12student( biology ) from Canada
Im from nepal
That's not true. Lactose does not bind onto the lac repressor. Lactose gets transformed into allolactose, and the allolactose binds onto the lac repressor
In three minutes would you be able to talk about the transformation of beta 1-4 linkage into beta 1-6 linkage? be fair ok//
Emilio Duverna It is possible. Or you could just extend the vid a bit more. take this as constructive criticism (rather than deconstructive criticism). My comment would help people not to get confused. imagine in an exam, if the question is asked 'what binds onto the lac repressor?' and you say 'lactose'. You would lose a mark
Super ... Can you link me to the research paper please!?
ShineyM you are right and I am agree with u
@@emilioduverna4741 yeah in less then 3 minutes I bet
very good
thanks a lot
I understood it very well
How are you after these 12 years?
Hey yo how are you ? My god after hustling bustling 12 years😮
So 12 years ago u was a normal biology student, but now u r a youtuber with 3.76M subs
Great
Here are some notes too.
ua-cam.com/video/YSvoid3wjbc_/v-deo.html_THE_LAC_OPERON
ig this is your oldest yt comment
Thank you so much for posting this. I have a test tomorrow on the lac operon and stuff like this, and up until now I've been absolutely lost. I may actually not fail! Thanks!
Thank you for the teaching of the lac Oberon.
Blessing to you.
These three minutes of watching is equal to 30 minutes of reading. Great material, thank you very much!
Really easy to understand now, I wish I discovered this video sooner!
Thank you!!!!
So easy to understand!!!
My professor took 2 hours "explaining" this and you totally made it make sense in 3:27 min!!!
I was just reading my textbook about this and it was going over my head and unappreciated. Watching this has helped a ton! It's really incredible and amazing how intuitive these systems are! A bunch of biomolecules doing such clever things! Awesome!
this is like 100x more useful then a picture and 3 paragraphs of words........ THANKS ALOT!!
this video is simply amazing thanks for uploading it .It just cleared out all my doubts…
The 3D picturization makes it easy to understand...Thank you so much for this 😊
Thank you so much! You've made it look so easy!! My biology teacher just gave us a worksheet and told us to learn the Lac Operon and didn't bother teaching it.
+Sidra Hussain LOOL trust
+Sidra Me too, that's why I'm here lol!
You just took charge of your own learning. That is the point. Don't wait for someone to "teach" you. You have no control. Move forward and "learn" on your own. Then you are ready to be a well-read and well-educated adult.
mine too
Thank you for making this easy to visualise!
saw this on mute when in my online class same topic was going in and helped me a lot to understand
The inducer is allolactose rather than lactose itself, but a great visual representation.
Alloactose or lactose can activate the repressor
Both
Thank you. :) We use Autodesk's Maya.
Very simple and perfect explanation to the complex content
i have a final for biology tomorrow and my teacher showed this video to us earlier in the year. it helped me so much then and it helped me so much now to refresh my mind on this topic
This is the best explanation i've seen. Thanks.
thmbs up for a video that is very helpful as a review tool
The best video that teach me jst before 20 minutes of my examination
Absolutely awesome explanation, thank you so much!
Such a great video!!! Thanks for sharing this!
This is really good.
I didnt even undsrstand what an operon is.
But thanks to your visuals bow i got it its a part of DNA and how it works properly
Even though it's missing a few information, it was a good visualization of how the whole thing works.
Thank you for this video. Reading my notes from class doesn't make ANY sense at all but this all does!
The animation videos are very useful, thank you!
Was really helpful
3 D animations are immensely useful in learning biology.
A very beautiful demonstration thanks
Thank you for making this video. It's excellent for class instruction.
i personally found it very useful
i really didn't understand the lac operon until i saw this
thanks :)
Beautifully animated
Best video ever..made it all easy..thank you!
really helped me with AP bio
Very helpful and well explained! Thank you very much!
This is very helpful, the best one by far!!!!
glucose decreases adenyl cyclase- reducing cAMP thereby repressing the lac operon. the purpose of the lac operon is to make glucose by breaking down lactose (glucose + galactose). when there's plenty of glucose, there's no need to breakdown lactose to get it.
I find it very useful .. it made my concept very strong. . Thanks for this video. . !!
I believe this "cute cartoon" presentation was intended for beginner's biology students to help them get the gist of the lac operon and its subcomponents. Saying it is "inaccurate" would be unfair and untrue.
I love the music when the vid starts lol
Just to add, it is the lac I region that encodes for the repressor, which only represses the operon in the absence of allolactose (the inducer).
thanks your video helps me really well to understand lac operon properly
Thank u for taking time to make this video
wow this one is great! . straightforward
so helpful thanks a lot! I watched it after the amebia sister video which was so helpful as well and this one explained everything more!
From india , literally ncert choked me up with their description thanks fr this 🙂
Really great for my Genetics revision - thanks so much! Whilst it doesn't include cAMP, or the fact that it is Allolactose which induces the system, it was great for simplifying the process so I could get my head around it. Thanks again! ^^
Thank you so much. Excellent job. .....
I have this topic almost in every sem... I always watch this video... Its just awesome..! I seriously dont go through the theory.. I will just watch this video😇
lac operon actually came up in the exam! this really helped :)
@Manish kashyap damn are you okay?
That was a damn fantastic informative video!
Absolutely masterful video!
Easy way to understand d process. Good work.
This is super genius.i watched it once and i don't need to open my book anymore..^.^
There is a CAP activation protein and it is VERY important (although, not necessary for expression of the regulatory genes).
Here's how it works (if you or anyone else aren't sure how it works):
if there are low levels of glucose, then the cell needs another energy source (like lactose). As [glc] is low, [cAMP] should be high, and this is the substrate for CAP to activate it. The active CAP binds to the promotor sequence and facilitates the binding of RNA polymerase.
thank you for saving my time
Thank you sis it is greatly used for me.keep on
thnk u soooo much for clear concept. :)
That animation is badass.
simple and valuable. well done
OMG that's cool I was just wondering this helped me a lot thank you so much for this verio
It was really oossmm ..it helped a lot ✨..thank you so much for making these efforts😁
Excellent explanation
i love it. thank you so much :33
Thank you mam.it was very useful for me for understanding the lac operon
The entry of lactose into the cell is due to the noisy expression of the lac operon, which leads to low levels of permease even in the absence of lactose ; similarly the transformation of lactose to allolactone (the actual allosteric effector of the lac repressor as already noted), is mediated by b-galactosidase (which again is present at low levels due to noise in gene expression.
ndsu, all your videos are amazing. north dakota state, you know what's up! haha. thanks so much.
as for lac operons, isn't there a CAP activator though? i'm not sure if that's important or not anymore if this video didn't mention it
Best animation on lac operon..👍
incredible video. Thanks you so much
MILLION THANKS!!!!!
That was a good video it defiantly saved me hours of deciphering my crappy notes.
Btw the third protein is lactose transacetylase
This video is so simple and brilliant :)
Thanks! It was very helpful
Great animation. Thank you :D
Just 3 min video and i am clear with the concept ..applause🙋
Very easy to understand! Thanks. :D
Awesome and very informative video. Thanks!
Beautiful!
Pristine animation, easy to understand ty :)
so beautiful
Superb video!!!...Full concept clearing..
good picturisation...................
كلللللللش استفاديت الموضوع جدا صعب والفديو سهله شكرااااااااااا لكم
@jolymate This is a negatively controlled inducible operon. This is because the product of the regulator gene is required to shut OFF the expression of the structural genes (Z,Y,A).
another awesome vid, thx guys your viedos helped me a lot!
im flying though my notes bc of this video! thanks!
great explanation
thanks forlo! that cleared up some of my confusion :)
Goddamn, these 3D art science visualisations crack me up!
Thank u so much. It's very useful for me
Very helpful! Thank you! xoxo
Very helpful with my studying, Thanks!
Oh my god!! that was wonderful!!
Truly amazing:-)
It is much good ...thankuu so much 🙂it really helped me a lot
This is actually a little broad. When Lactose first enters the Prokaryote some of the lactose is converted to Allolactose. Allolactose is the inducer molecule that binds to the repressor molecule that removes it from the Lac Operation site and allows mRNA polymerase to come in and transcribe the operon
Wow, really well explained
Thanq sooo much , this is really good video