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Bioinforphile
Приєднався 13 гру 2022
I am Amal Senevirathne, a researcher and scientist with an interest in bioinformatics and data science. I enjoy sharing knowledge thus, I created this channel to share subject-specific things that I know and learned. At times, gathering the required knowledge is a challenging task, that takes a lot of time and effort. Having said that “sharing is careering”, I believe this effort will at least be a small help for a learner somewhere in the world. The content will be related to bioinformatic tools, python, and R which write the holly grail of modern data science and scientific analysis.
Run BLAST Locally on Custom Database
This tutorial "Run BLAST Locally on Custom Database" describes installing and running BLAST on your local computer using a custom database.
The detailed procedure can be found in this link.
bit.ly/3CPZVLC
BLAST web interface
ua-cam.com/video/yJekW_3X8iA/v-deo.html
The detailed procedure can be found in this link.
bit.ly/3CPZVLC
BLAST web interface
ua-cam.com/video/yJekW_3X8iA/v-deo.html
Переглядів: 75
Відео
NCBI BLAST Tutorial-Basics
Переглядів 712 місяці тому
This tutorial covers the basics of NCBI BLAST analysis and results interpretation.
Fix EndNote Error - Absence of Icon in MS Words
Переглядів 202 місяці тому
This video demonstrates how we can fix the simple error in EndNote, where we cannot find the EndNote icon in MS Words.
How to Install Jupyter Notebook on Windows 10
Переглядів 827 місяців тому
Installation of jupyer notebook on Windows 10 involves a few easy steps. This tutorial includes all the steps of installation and specifies a working directory. Watch till the end and learn.
Use Markdown in Jupyter Notebook
Переглядів 4610 місяців тому
Markdown is a way to format text. By default, Jupyter notebook cells are formatted to display code, so without Markdown, there is no easy way to include explanatory text in your notebooks. Of course, you can always include code comments, but those cannot be formatted.
SWISS-MODEL TUTORIAL
Переглядів 1,3 тис.Рік тому
The Swiss-Model is a bioinformatics resource and web-based platform that specializes in protein structure modeling. Its primary function is to predict the three-dimensional structure of a protein based on its amino acid sequence. This is a crucial aspect of structural bioinformatics, providing insights into the functional aspects of proteins and aiding in various biological and pharmaceutical r...
Extract Top Scores from 400 output files in Windows | AutoDock vina | Multiple Ligand Docking
Переглядів 644Рік тому
This tutorial demonstrates a simple strategy using a batch file, to extract n'th row from multiple log/txt files and save it into a separate output.txt file. This is particularly useful in result summarization activities after docking analysis against a large number of ligands in AutoDock Vina. The script can be modified and used for any other activity. script bit.ly/3MbMN5f
Clans Tutorial-Proteomic Clustering with Clans
Переглядів 247Рік тому
CLANS is a Java program for visualizing the relationship between proteins based on their allagainst-all pairwise sequence similarities. The program implements a version of the Fruchterman-Reingold force-directed graph layout algorithm to present the sequence similarities in a visually appealing, publication-quality 2D or 3D graph. In this tutorial, I tried the software with protein and nucleoti...
Image J Fiji for Distance and Area Measurements
Переглядів 134Рік тому
Image J Fiji is useful software for scientific image analysis. This tutorial demonstrates how we can use Image J Fiji for distance or area measurements during a scientific analysis.
Add column IDs to a large data frame in Python
Переглядів 40Рік тому
This tutorial demonstrates how it is possible to add column IDs to a large data frame in Python. How to add column IDs to a large data frame in R ua-cam.com/video/HR6jXLAnf3M/v-deo.html
Protein Homology Modeling with Modeller 10.4 - For Beginners
Переглядів 5 тис.Рік тому
This is a beginner's tutorial for protein homology modeling using Modeller 10.4. Protein homology modeling, also known as comparative modeling of protein, refers to constructing an atomic-resolution model of the "target" protein from its amino acid sequence and an experimental three-dimensional structure of a related homologous protein. Modeller software is a versatile tool available for homolo...
How to Install R-Studio in Ubuntu 22.04 LTS
Переглядів 6 тис.Рік тому
This tutorial describes the complete installation procedure of R-Studio in Linux Ubuntu 22.04 LTS.
Add column IDs to a large data frame in R
Переглядів 30Рік тому
When we are dealing with very large data frames, occasionally, we have to add column IDs for various purposes. Unlike a small data frame, we cannot manually specify column IDs. This tutorial demonstrates a way that we can add column IDs and Row IDs to a large data frame. Add column IDs to a large data frame in Python ua-cam.com/video/JS7Wc0L6Jys/v-deo.html
Extract Top Scores from 400 output files | AutoDock vina | Multiple Ligand Docking
Переглядів 975Рік тому
This tutorial covers a strategy to extract all top scores from multiple log output files generated by AutoDock Vina multiple ligand docking, using awk function in linux
Multiple ligand docking | dock 400 ligands using Autodock Vina
Переглядів 8 тис.Рік тому
This tutorial presents step by step process for multiple ligand docking using autodock vina. Enjoy and learn. #How to prepare 400 ligand files (smiles strings) into *.pdbqt format for multiple ligand docking ua-cam.com/video/a1XZMdT2Sh0/v-deo.html #Link to essential files bit.ly/3zi4F7z #Extract top scores from 400 log output files ua-cam.com/video/zmFjx7RHWLE/v-deo.html
How to prepare 400 ligands in *.pdbqt for multiple docking in Autodock Vina
Переглядів 3,5 тис.Рік тому
How to prepare 400 ligands in *.pdbqt for multiple docking in Autodock Vina
Easyfig analysis - Tutorial | On Windows and Ubuntu | linear genomic comparisons
Переглядів 3,5 тис.Рік тому
Easyfig analysis - Tutorial | On Windows and Ubuntu | linear genomic comparisons
How to Use Mendeley Reference Manager | Tutorial
Переглядів 91Рік тому
How to Use Mendeley Reference Manager | Tutorial
Access GEO dataset using GEOquery package in R
Переглядів 3,6 тис.Рік тому
Access GEO dataset using GEOquery package in R
Download and Clean Protein PDB File from Protein Data Bank using Discovery Studio
Переглядів 1,6 тис.Рік тому
Download and Clean Protein PDB File from Protein Data Bank using Discovery Studio
Big data - Extract rows of a data frame in R | Extract using a list of row IDs
Переглядів 982 роки тому
Big data - Extract rows of a data frame in R | Extract using a list of row IDs
Select Columns| using column number| select function in dplyr - R Quick Guide
Переглядів 212 роки тому
Select Columns| using column number| select function in dplyr - R Quick Guide
Importing text, csv and excel files as data frames into R
Переглядів 492 роки тому
Importing text, csv and excel files as data frames into R
hi sir ! after i run the perl file and put the ligand file name output is coming only the names of ligands ! docking is not happening .. can u please help
Hello. Thank you for sharing. I have a question. Why are there no shaded parts in my generated image, only gene pairs?
depending on what should I select the grid box?
Hello, Thank you for the nice titorial. I have done everything according to the tutorial, however, I am unable to have the proper output file. There is no synteny among them, is there any platform where I can share the image with you.
"Hi, please check the similarity between the two sequences. No synteny will be displayed if there is no significant similarity between them. You can use BLAST analysis to check for a significant match. If there isn't high similarity, you may consider core gene analysis or other comparison methods, such as Progressive Mauve Alignment, which may highlight evolutionarily conserved domains."
very helpful, thank you !!
next what to do?
Mine picked the second values
Does anybody know to show legends for gene names or gene names above genes? For the first one I have selected in Figure options "Draw blast identity legend", "Feature legend: single column", "Get feature name from gene". For the second in Annotation options I try to select "Feature labels" top or bottom but soon as I close the menu it resets to none.
Are you trying to add gene labels into the figure?
Great Easyfig! Great tutorial as well! One question, how do I generate legends and do I have to label all the CDs since my phages may have a very long Legend.👏👏👏
pls help this : swig/python detected a memory leak of type “BHtree *”, no destructor found keeps popping up and I cant repair removed residues
Hi dear ….. when i load molecule in autodock it is not showing any moleculecan you please explain why ? It is not showing any molecule in autodock …. Thanks a lot waiting for your reply
Are you using molecules in PDBQT format? please check.
@@educont22 Yes I am Uning. I have uninstalled AutoDock and reinstalled it, but the problem persists. Whenever I try to open the PDBQT molecule in AutoDock, it just shows a blank screen. Could you please assist me in resolving this issue and ensuring that the PDBQT molecule can be successfully opened in AutoDock? Thanks Once again
@@drjagadishdasari2294 In that case, can you open your PDBQT file as a text file, and ensure that is not empty or contains some unexpected characters. Also, you can adjust the zoom level and check whether the zooming level is out of the visual field of your molecule. When you open the molecules, please also check that your molecule is selected in the left-hand panel (S L B C RMS L CI) at least one should be chosen.
I followed the steps and got my protein, this was really helpful and easy to understand. Really appreciate you for uploading such a guide video. thank you so much.
thank you, it's very helpful
I am unable to download the software on Github, was it removed or stopped?
No, it is still available. Check this link. mjsull.github.io/Easyfig/files.html
Output will be 10_out.pdbqt Detected 4 CPUs Reading input ... Error: could not open "receptor.pdbqt" for reading. i am getting this error kindly help me. what to do
Getting error space volume > 2700 Angstrom 3 Could not open receptor. Pdbqt
This part of the error message indicates that the software is encountering an issue related to the size of the search space volume specified for docking. AutoDock Vina has a limit on the size of the search space volume, and it seems that the specified volume exceeds this limit (which is set to 2700 Angstrom^3). You may need to adjust the size of your search space to be within this limit.
How to download file
Which code is put in profile graph
Do you want to create a profile plot in R or Python?
on my notebook it didn't work, the message says the following: E: Unable to find the r-base-core package
Let's try this, (1) sudo apt update, (2) deb cloud.r-project.org/bin/linux/ubuntu YOUR_UBUNTU_VERSION_HERE-cran40/ , (3) sudo apt update , (4) sudo apt install r-base, also check your typos and internet connectivity. Thank you.
Very simple video with a very helpful explanation. Many thanks.
I keep getting the error ,command line parse error: unrecognized option. ‘-log’
The conf_vs.txt does not contain the Spacing (anstrom). How can I add it and what is it basically set to? Thanks.
In AutoDock Vina, the "Spacing" parameter in the configuration file (conf.txt) specifies the spacing (grid spacing) between grid points in the grid box used for docking. This parameter determines the resolution of the grid, which affects the accuracy and speed of the docking calculations. The default value used by AutoDock Vina is 1 Ångstrom. f the conf_vs.txt file generated by AutoDock Vina does not contain the Spacing parameter, you can add it manually to the configuration file (conf.txt). Typically, the Spacing parameter is set to a value between 0.375 Ångstrom and 1 Ångstrom. spacing = 1.0
Thank you
I have one question, how do I rank my molecule docking and how do I identify which file result comes best score boz i check file name, all the files named 1 in your computer.
Much love for all the work you put in to making these short but very informative guides
Hello there Sir could you play help in answering a problem i have with making a protein with multiple chains via this technique. The protein in question is a transmembrane protein.
After using command prompt, it says Command line parse error: too many positional options
The error message "Command line parse error: too many positional options" in AutoDock Vina typically indicates that there are too many arguments or options being passed to the command line. This error commonly occurs when the syntax of the command is incorrect, or when extra parameters are added that the program does not recognize. To resolve this issue, ensure that you are using the correct syntax for running AutoDock Vina from the command line. Here's an example of the basic syntax for running AutoDock Vina: vina --ligand <ligand.pdbqt> --receptor <receptor.pdbqt> --config <config.txt> --out <output.pdbqt>
After using the command prompt, it says 'Access denied'. How to solve this issue?
Are you accessing the CMD using a non-administrator account?
bruh,i just can't find the molecule file KEKW
MGLTools crash my Windows 7 system forcing it to reboot :(
Right-click on the MGLTools executable or shortcut. Select "Properties." Navigate to the "Compatibility" tab. Check the box for "Run this program in compatibility mode for:" and select a compatible operating system (e.g., Windows XP or Windows Vista). Click "Apply" and then "OK."
Thank u for this explanation but i want to ask why i keep getting this error message "vina : The term 'vina' is not recognized as the name of a cmdlet, function, script file, or operable program."
Were there any spelling mistakes in the script?
hi, i had the same error, i tried .\vina and it got solved!
I have fusion structure Alphafold2 prediction showing pdb file, but it can not open in Autodock Vina, do you know how to solve it, thank you
There can be compatibility issues. You can simply open your PDB file in txt format check whether it follows standard PDB format required for Autodock Vina. Such as header formats. You can use other programs to correct PDB file, if there is any error in it.
The same command working for windows 7 also?
hi, I tried to download blast automatically, but it says its unable to find blast
I did the steps exactly as you told, but I am getting an error "'import site' failed; use -v for traceback FATAL ERROR: Cannot open file compare.py: No such file or directory"
run modeller as adminstrator. it'll work.
When I open the ligand it says zero division error
Ensure that the input parameters you are providing to AutoDock Vina are appropriate and do not result in division by zero. Double-check the values you are using for the grid dimensions, exhaustiveness, or any other relevant parameters.
@@educont22 The pdb file that my prof send to me had an error actually. Ty for the answer and also the video.
thankss
Hi, thanks for your video, that is great! And can you please let me know how to prepare SMILES files? thanks
If you have a small number of files (for example in PDB format) you can convert them into smiles using various online software (Ex. cactus). If you have a large number of files to be converted into smiles, you can use other dedicated programs such as open babel. If use a particular database such as drugbank or Zinc, you can directly download structures in smiles format.
Why I am getting cannot open log fil compare.log :permission denied
Have you tried running as administrator? please try and see.
interesting
Hello! What is a low quality protein? What would happen if I used a low-quality protein for modeling?
If the model is less accurate, it can affect downstream analysis such as docking studies against intended ligands. Therefore quality of structure is important.
Thanks a lot!
mgl tools is showing error as ; " bad end of central directory"
Please ensure that the MGL Tools zip file you downloaded is complete and hasn't been corrupted during the download process. You can try re-downloading the file and attempting the extraction again.
Very helpful, thank you
how much time it will take to generate output file?
Just seconds. It's very fast.
I learned a lot by following your channel, keep on sharing!
Thank you for your encouraging words.
Thank you for helping on this task!
Thank you! You are the BEST!
Thanks again for the video. I've requested access to a copy of the batch file.
Please check the new link. Sorry for the inconvenience.
Thanks for this video. Can this be done in windows?
It is possible but with a little complicated script by creating a batch script. I will try first and demonstrate how to do it. Thank you.
ua-cam.com/video/PPp7hobi-SA/v-deo.html
Thanks so much @@educont22 !
I had download OXS version form EasyFig homepage, but I don’t know how to process on my MacBook
OSX Download the latest version of Easyfig (currently Easyfig_mac_2.1.tar.gz) and double click on the download to extract contents. Double-click on the Easyfig application to run Easyfig (known to work on Mac OS X versions 10.5 and 10.6). With later versions you may need to "Allow apps downloaded from anywhere", this option can be Preferences -> Security and Privacy (OSX Version 10.11).
@@educont22 my macOS version is 14.0 so EastFig 2.1 is too old to install