![Ashok Kumar T](/img/default-banner.jpg)
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Ashok Kumar T
India
Registrace 24. 09. 2007
I’m Prof. Dr. T. Ashok Kumar. On my channel, you will find step-by-step practical tutorials, lectures, presentations, and workshop materials on Bioinformatics, Computational Biology, and Computer-aided Drug Designing. I love programming, tool development, and biological problem-solving.
Like videos and subscribe to my channel to see more updates on Bioinformatics, Computational Biology, Molecular Modelling, and Computer-aided drug design on your feed!
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My Blog: www.biob.in
Website: www.biogem.org
My Vlog: czcams.com/users/AshokKumarBioIT
CZcams Handle: youtube.com/@AKBIT
My GitHub: github.com/AshokHub
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For any queries ping me: ashok.bioinformatics@gmail.com
Like videos and subscribe to my channel to see more updates on Bioinformatics, Computational Biology, Molecular Modelling, and Computer-aided drug design on your feed!
---------------------------------------------------------------------------------------
My Blog: www.biob.in
Website: www.biogem.org
My Vlog: czcams.com/users/AshokKumarBioIT
CZcams Handle: youtube.com/@AKBIT
My GitHub: github.com/AshokHub
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For any queries ping me: ashok.bioinformatics@gmail.com
Modeling 3D Structure of Protein using Chimera and Modeller
A simple video tutorial that demonstrates how to perform comparative or homology modeling of a protein's three-dimensional (3D) structure using UCSF Chimera and Modeller software. The Chimera software serves as a graphical user interface (GUI) for the command-line user interface (CUI) of Modeller software. The sources used for the tutorial are listed below.
Modeller v10.5 (released Jan 23, 2024) - salilab.org/modeller/download_installation.html
Chimera v1.17.3 (released Jul 06, 2023) - www.cgl.ucsf.edu/chimera/cgi-bin/secure/chimera-get.py?file=win64/chimera-1.17.3-win64.exe
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My Blog: www.biob.in
Website: www.biogem.org
My Vlog: czcams.com/users/AshokKumarBioIT
CZcams Handle: youtube.com/@AKBIT
My GitHub: github.com/AshokHub
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#BioGem #biogem.org #BioBIN #biob.in #Bioinformatics #AKBIT #UCSF #Chimera #Modeller #Modelling #Protein
Modeller v10.5 (released Jan 23, 2024) - salilab.org/modeller/download_installation.html
Chimera v1.17.3 (released Jul 06, 2023) - www.cgl.ucsf.edu/chimera/cgi-bin/secure/chimera-get.py?file=win64/chimera-1.17.3-win64.exe
---------------------------------------------------------------------------------------
My Blog: www.biob.in
Website: www.biogem.org
My Vlog: czcams.com/users/AshokKumarBioIT
CZcams Handle: youtube.com/@AKBIT
My GitHub: github.com/AshokHub
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#BioGem #biogem.org #BioBIN #biob.in #Bioinformatics #AKBIT #UCSF #Chimera #Modeller #Modelling #Protein
zhlédnutí: 208
Video
Creating Database and Performing BLAST Search using BioEdit
zhlédnutí 268Před 5 měsíci
A simple video tutorial for creating custom protein/nucleotide database and performing BLAST query search using BioEdit tool. Resource URL: NCBI - ncbi.nlm.nih.gov/genbank/ BioEdit - thalljiscience.github.io/ (or) www.mbio.ncsu.edu/BioEdit/bioedit.html My Blog: www.biob.in Website: www.biogem.org My Vlog: czcams.com/users/AshokKumarBioIT CZcams Handle: youtube.com/@AKBIT My GitHub: github.com/A...
Bioinformatics - A brief overview
zhlédnutí 129Před 6 měsíci
A brief overview of bioinformatics. The topic covered are goals, areas, approaches, and demands. My Blog: www.biob.in Website: www.biogem.org My Vlog: czcams.com/users/AshokKumarBioIT CZcams Handle: youtube.com/@AKBIT My GitHub: github.com/AshokHub Images: Image by storyset on Freepik - www.freepik.com/free-vector/researchers-concept-illustration_22378295.htm#query=bioinformatics&position=37&fr...
Interactive Phylogenetic Tree Visualization using iTOL
zhlédnutí 631Před 8 měsíci
A simple video tutorial for interactive visualization, manipulation and annotation of a phylogenetic tree using the online tool "interactive Tree Of Life (iTOL)." The iTOL produces phylogenetic trees in various formats, such as rectangular, slanting, curved, radial, and curved. It accepts input in Newick, Nexus, or PhyloXML file format. Resource URL: iTOL - itol.embl.de/ My Blog: www.biob.in We...
Phylogenetic Tree Construction using MEGA tool
zhlédnutí 1,1KPřed 10 měsíci
It is a simple tutorial for constructing a phylogenetic tree using Molecular Evolutionary Genetics Analysis (MEGA) software. The MEGA software produces phylogenetic trees from multiple sequences in various formats: rectangular, slanting, curved, radial, and curved. Resource URL: MEGA - www.megasoftware.net/ My Blog: www.biob.in Website: www.biogem.org My Vlog: czcams.com/users/AshokKumarBioIT C...
Gene Ontology Enrichment Analysis using ShinyGO (an R Shiny Server)
zhlédnutí 3,8KPřed 11 měsíci
This tutorial explains how to perform Gene Ontology (GO) Enrichment Analysis using ShinyGO (a cloud R Shiny server). ShinyGO is an online graphical interface tool for gene-set enrichment analysis. It is an open-source program written using R language and enveloped with Shiny and BioConductor packages. The online tool runs on the Shiny cloud server; whereas the source code is hosted at the GitHu...
Interactive Molecular Dynamics Simulation Movie using MDsrv
zhlédnutí 348Před rokem
A simple tutorial to visualize MD (Molecular Dynamics) simulation trajectories as a movie using MDsrv and NGL Viewer. MDsrv is a simple server that enables interactively viewing trajectories of molecules through a web browser using NGL Viewer. It supports both local and remote access to atom coordinate trajectories. MDsrv File Support: Structure formats: mmCIF, PDB, PQR, GRO, SDF, MOL2, MMTF To...
Draw and Build 3D Structure using JSME and BALLOON
zhlédnutí 310Před rokem
A simple video tutorial to build a 3D molecule by drawing its 2D chemical structure using JSME Molecule Editor and the BALLOON tool. The source URL to the tools is below, JSME (JavaScript Molecule Editor) - jsme-editor.github.io/ BALLOON - users.abo.fi/mivainio/balloon/download.php My Blog: www.biob.in Website: www.biogem.org My Vlog: czcams.com/users/AshokKumarBioIT CZcams Handle: youtube.com/...
Image to 3D Structure Conversion using Online OSRA
zhlédnutí 598Před rokem
A simple video tutorial to convert chemical structures in the image to a 3D molecule using online OSRA (Optical Structure Recognition Application) tool. The resource URL to the webserver is below, CACTUS OSRA: cactus.nci.nih.gov/cgi-bin/osra/index.cgi Source Code: sourceforge.net/projects/osra/ My Blog: www.biob.in Website: www.biogem.org My Vlog: czcams.com/users/AshokKumarBioIT CZcams Handle:...
Image to 3D Structure Conversion using VEGA ZZ OSRA
zhlédnutí 638Před rokem
A simple video tutorial to convert chemical structures in the image to a 3D molecule using VEGA ZZ OSRA (Optical Structure Recognition Application) software. The source URL to the software is below, VEGA ZZ: nova.disfarm.unimi.it/cms/index.php?Software_projects:VEGA_ZZ CACTUS OSRA: cactus.nci.nih.gov/osra/ (OR) sourceforge.net/projects/osra/ My Blog: www.biob.in Website: www.biogem.org My Vlog:...
Nussinov Algorithm - Step-by-step Explanations
zhlédnutí 5KPřed rokem
The Nussinov algorithm is an RNA secondary structure (folding) prediction method using a dynamic programming approach. Ruth Nussinov introduced this algorithm in the year 1978. It involves computing a two-dimensional (2D) diagonal matrix with the same sequence at both dimensions. The scores are given based on complementary (1) or non-complementary (0) matches of characters. Matrix solving consi...
Converting AutoDock result to a complex PDB file using Chimera
zhlédnutí 3,8KPřed rokem
Converting AutoDock result to a complex PDB file using Chimera
Capturing High Resolution Screenshot on Chrome
zhlédnutí 3,8KPřed rokem
Capturing High Resolution Screenshot on Chrome
Protein Structure Analysis using Chimera Tool
zhlédnutí 3,5KPřed rokem
Protein Structure Analysis using Chimera Tool
Bioinformatics Workshop on Protein Database at NMCC, Marthandam
zhlédnutí 347Před rokem
Bioinformatics Workshop on Protein Database at NMCC, Marthandam
PDB File Splitting and Interactive Molecular Visualization using PDBms
zhlédnutí 1,1KPřed rokem
PDB File Splitting and Interactive Molecular Visualization using PDBms
Molecular Docking using Chimera and AutoDock Vina
zhlédnutí 18KPřed 2 lety
Molecular Docking using Chimera and AutoDock Vina
Molecular Docking using PyRx and AutoDock/Vina
zhlédnutí 3KPřed 2 lety
Molecular Docking using PyRx and AutoDock/Vina
Visualization of Biological Network using Cytoscape
zhlédnutí 13KPřed 2 lety
Visualization of Biological Network using Cytoscape
Smith-Waterman Algorithm - Step-by-step Explanations
zhlédnutí 12KPřed 2 lety
Smith-Waterman Algorithm - Step-by-step Explanations
Custom Database Search using NCBI Web BLAST
zhlédnutí 460Před 2 lety
Custom Database Search using NCBI Web BLAST
Needleman-Wunsch Algorithm - Step-by-step Explanations
zhlédnutí 15KPřed 2 lety
Needleman-Wunsch Algorithm - Step-by-step Explanations
RNA-RNA Interaction Prediction using RactIP
zhlédnutí 866Před 3 lety
RNA-RNA Interaction Prediction using RactIP
Rename multiple files (batch) using ReNamer on Windows
zhlédnutí 437Před 3 lety
Rename multiple files (batch) using ReNamer on Windows
Bioinformatics Workshop on Sequence Analysis at KAU, Vellayani
zhlédnutí 338Před 3 lety
Bioinformatics Workshop on Sequence Analysis at KAU, Vellayani
Making Custom Database and Sequence Alignment using NCBI BLAST+
zhlédnutí 8KPřed 3 lety
Making Custom Database and Sequence Alignment using NCBI BLAST
Graphical Web Interface to the Stand-alone NCBI BLAST+ programs using locBLAST
zhlédnutí 1,2KPřed 3 lety
Graphical Web Interface to the Stand-alone NCBI BLAST programs using locBLAST
Synthesis and Retrosynthesis of Molecule(s) for Drug Development using IBM RXN
zhlédnutí 4,2KPřed 3 lety
Synthesis and Retrosynthesis of Molecule(s) for Drug Development using IBM RXN
Compound/Substance/BioAssay Retrieval from PubChem Database
zhlédnutí 3,8KPřed 3 lety
Compound/Substance/BioAssay Retrieval from PubChem Database
Also since my Uni prot sequences are 2, and my teplate is one, but i should produce a model with the two units together, how do i submit the sequence fasta file?
Hello. If i know the template that i need to use where should i place the template because in my case i am using 2 sequences (T1R1/T1R3) from Uniprot and a template (PDB ID: 1EWK) from protein databank.
You must choose interactive mode molecular modelling for multiple target sequence and custom template structure uploads. swissmodel.expasy.org/interactive#structure
Thanks a lot ❤❤❤❤
My pleasure ☺️
How many days did it take
It is just like a molecular visualisation tool.
@@AKBIT yes sir iam also a biotech student iam talking about the time it took to simulate
@@AKBIT yes sir iam also a biotech student iam talking about the time it took to simulate
Actually I have downloaded the molecular dynamics trajectories file from the database for the visualisation. Usually MD simulation time depends on the molecule size, movement and system configuration.
Watch this video tutorial for explanation czcams.com/video/m62lg6ZInAI/video.html
ty bro
My pleasure 😊
I do not see autodock vina as an option under tools and binding analysis. I downloaded autodock vina, but not sure how I get it to load into chimeraX
Are you using Chimera or ChimeraX?
@@AKBIT You are right, I was using ChimeraX. I am now trying to use PyRx for docking with ChimeraX, but it doesn't recognize my cxs file to open it.
ChimeraX does not have an interface to AutoDock Vina program. UCSF Chimera and UCSF ChimeraX are two different programs; you would need to get Chimera to use this feature.
If you are trying to use PyRx with AutoDock Vina, watch this video tutorial czcams.com/video/F7-2n8Clb68/video.html
thank you soooo much this video helped me a lotttttttt
Thank you for your valuable feedback 😊
It is very useful!
Thank you for the valuable feedback.
Thakyouu sir🙏🏻
Can we make a homo-multimer or hetero-multimer of proteins in chimerax?
0:44
!?
from amino acid sequenced to 3D structure via homology modeling option of chimera
Absolutely. Through the Modeller software.
Can we predict the novel derivatives of a compound using this application
Yes. But, based on the database availability.
Pero si sale todo borroso el video!
Could you translate in English?
Thank you for the tutorial
You’re welcome 😊
sir can you tell me which is the best software tool currently for protein data analysis?
UCSF ChimeraX is the best alternative free software.
so concise and enriching full of information. Thank you.
Thanks for your feedback 🙂
how do you change the color of the dots on the Van de Waals model?
It is not possible to customize dots color.
Please speak about what you are trying to show. It would be helpful for novices!!
Thanks for your feedback.
Unfortunatly non of the websites working right now :(
Currently researchers are focusing on artificial intelligence to improve accuracy in structure prediction. So, most of the servers using old methods are deprecated or discontinued their services.
I could not find dimensions responsive 😟
Press 'Ctrl + Shift + I' to show 'Dimensions' menu at top of the page. Select 'Responsive' from the list box. czcams.com/video/5KOL6kZ0W2w/video.htmlsi=dcwDIUu7ygk6Xrjq&t=33
click elements
i wish you could explain this in Hindi as well.....
Sorry, l don't know Hindi 😉
when using blast for unknown it gives 75 similarity in identity of un known 16 r rna gene from bacteria ?? What is that mean 🤔
FYI: The exact matching of characters in both sequences is known as identity. For example, APPLE = APPLE Furthermore, the partial matching of characters in both sequences is known as similarity. For example, APPLE ~ MAPLE
What are Gasteiger and Kollman charges? Where exactly are these charges being added in the protein? How can I determine the location of these charges in the protein
What are Gasteiger and Kollman charges? Refer: expertcomputationalchemistry.blogspot.com/2016/08/the-difference-between-kollman-charges.html Where exactly are these charges being added in the protein? Refer page 5: www.csb.yale.edu/userguides/graphics/mgltools/UsingAutoDockWithADT.pdf How can I determine the location of these charges in the protein? Compare the protein before and after adding charges to find the difference. It will be present in the PDBQT file.
Sir teach how to use bioedit software.
Yes, sure. I'll post soon.
Thanks sir
Nice
Very nice sir Needed advice sir. Im new to this field how do I get my grip in bioinformatics.
First you have to learn the basics of bioinformatics (theory aspect). Later, try simple practical like database, sequence alignment, molecule visualization, etc. After you are familiar, try molecular modeling, drug designing, docking, etc. If you are interested, you can also learn programming languages simultaneously or later. You must go on step-by-step.
@@AKBIT Thanks 🙏🏽 a ton Sir for responding... Please guide as to how to deepen the theory??? And which languages are necessary
'Essential Bioinformatics' by 'Jin Xiong' book is best for beginners www.amazon.in/Essential-Bioinformatics-Jin-Xiong/dp/0521706106/ www.researchgate.net/profile/Debabrata-Samanta-5/post/Bioinformatics-Which-book-should-I-read-to-understand-bioinformatics-from-the-very-beginning/attachment/5e0ddd59cfe4a777d4002f7f/AS%3A842868579106817%401577966937429/download/Xiong+J.+-+Essential+bioinformatics-CUP+%282006%29.pdf
@@AKBITThank you Sir
✋ *PromoSM*
🤔
You have saved my sanity. Thank you very very very much for taking the time to post this. Bless you.
Thank you so much for your lovely feedback. 😊
Thank you, the video was very helpful!
Glad to hear it!
@@AKBIT Right now I‘m trying to save the protein with the docked ligand als pdb file, but I can only save either. Could you help me out?
Watch this video czcams.com/video/dNx_95CZ1Dg/video.html
plz provide link of this website in comments
cactus.nci.nih.gov/cgi-bin/osra/index.cgi
Sir In ncbi forms to get the accession number, there is column for reference author. What to write there?
Reference author means the 'name' of the data submitter.
@@AKBIT thanks sir! What to write in? FORWARD PRIMER NAME REVERSE PRIMER NAME Sequence Author Isolation source Isolation place
Can you mention the timeline in the video where you have doubt?
Thank you Sir for the detailed explanation. Please in the WGCNA gene-coexpression network construction, which of the attributes (i.e gene name, the module colour, degree, strength, closeness, betweenness) are used in building the Cytoscape data or edge list. I have followed all the referral links you suggested but most seem to use the film -actor data. Thank you
Try the data available at horvath.genetics.ucla.edu/html/CoexpressionNetwork/Rpackages/WGCNA/Tutorials/
can someone help me please I can't understand clearly how to do...
www.biob.in/2016/09/installing-latest-pymol-software-for.html
Ashok sir... This was awesome
Thanks for your feedback. 🙂
how do we need to find out the semi global alignment that does not penalize for gaps at the beginning or the end of one of the sequences but penalizes in the middle.
For finding a semi global alignment, the important distinctions are to "initialize the top row and leftmost column to zero" and terminate end at either the bottom row or rightmost column.
Do we need to minimise the energy of ligand and receptor before running the AutoDock Vina?
That is your choice. If so, you have to perform prior to docking.
thank you its clear 😁😁
You're welcome 😊
Hi! Nice video! Did you know some web-version of Baba-Tool? I've tried this Java version, but it's not working on my computer.
You can try rna.informatik.uni-freiburg.de/Teaching/index.jsp?toolName=Smith-Waterman
I have uploaded the updated JAR file. Download it from biogem.org/downloads/software/baba.jar If does not works, run through command-line as java -jar baba.jar from the location where baba.jar file is stored.
@@AKBIT I think the problem is that some Java files are incompatible with Apple M1/M2 CPUs... I will test the first link... thank you very much ;)
You're welcome 🤗
I have done all the steps but the PyMol application just does not start.
Try, Right-click the application and Run as Administrator
very helpful tutorial , thank you so much !
You're welcome!
Hello I have this problem with pymol when I put this command load "filename".grd, VdM He told me he cannot open this file in pymol
Sorry, I can't able to understand your question. Can you explain it more clearly?
Sir, could you add voice explanation for this video. I'm an undergrad. I find it difficult to understand what's going on
Sorry for the inconvenience. In future videos the problem will be rectified. If you have any queries, send mail to ashok.bioinformatics@gmail.com
please speak or write about what each term/title/heading means and what it shows.
Thanks for your feedback. In future videos I will rectify it.
Sir..... when I submit data in RNA Composer (i.e) results of RNA secondary structure obtained from UNAfold web server, it shows task description excepted and sequence limitations. even though I have submitted 130 residues. how to overcome this problem, sir.
RNAComposer allows to work on one RNA molecule of interest at a time; its use is limited upto 500 residues. The input must be in prescribed format, example bellow: >example1 GCUCCUAGAAAGGCGCGGGCCGAGGUACCAAGGCAGCGUGUGGAGC (((((.......((((..(((..........))).))))..))))) Here 'example1' is the task description which begins with the greater-than symbol '>'. Next line is the RNA sequence and third line is the bracket-notations (obtained from the UNAfold web server).
@@AKBIT Thank you sir.
do you know how to download CT format, I click on it and I only gain text,, not the CT format.
In the result page, under "Results for minimum free energy prediction" section there is a link to download. Example, You can download the minimum free energy (MFE) structure in [Vienna Format| Ct Format].
thank you for the video, it helps me a lot
Happy to hear. Thanks for your feedback ☺️
Can you please tell me If I want to do multiple screenings in one go then which will be better? Pyrx or autodock vina? I will do target docking.
Pyrx is a graphical interface to the command-line AutoDock Vina program. So, Pyrx is user friendly to perform multiple screenings without much technical knowledge on AutoDock Vina commands.
Thank you sir . I really appreciate this video by you ❤️
Thank you for your feedback 😊
why can't i find the pip file?
It is optional. Usually latest PIP file will be already present in the installed Python directory itself. Continue remaining steps. czcams.com/video/m_J-kaImYeM/video.html
@@AKBIT thank you! i skipped downloading pip file and my pymol still works :)
You're welcome
Can you please share the autodoc vina program file used here or the download link for same
vina.scripps.edu/wp-content/uploads/sites/55/2020/12/autodock_vina_1_1_2_win32.msi
Installed programs will be at "C:\Program Files (x86)\Vina" directory.
Latest release github.com/ccsb-scripps/AutoDock-Vina/releases/download/v1.2.3/vina_1.2.3_windows_x86_64.exe