Multiple Sequence Alignments
Mandatory Reading
- https://en.wikipedia.org/wiki/Multiple_sequence_alignment
- https://en.wikipedia.org/wiki/Hidden_Markov_model
- http://nar.oxfordjournals.org/content/25/17/3389.long
Extra reading:
- http://en.wikipedia.org/wiki/HMMER
- http://en.wikipedia.org/wiki/HHpred_/_HHsearch
- Extract information from a MSA
- http://www.ncbi.nlm.nih.gov/turorials/BLAST
Slides
Videos
- Introduction to Multiple Sequence Alignments
- Profiles and PSSMs
- PSI BLAST
- Hidden Markov Models
- Profile-Profile alignments
- Psiblast Demo
Discussion-video
Other Videos explaining this better
Old Videos
Here is the update plos collection link : http://collections.plos.org/translational-bioinformatics
Can you please explain everything again, and provide a list of learning objectives of what the lectures intend to explain or what we should know from watching the lectures?
The video lectures for this section are not very useful because they seem to skip a lot of important information that is needed to understand these concepts.
Just like Daniel, so was I gonna ask if we could go through everything again.
For the slide: a progressive MSA
when u do parallel alignment, do u do it for every possible pair of sequences? or Some algorithm has been done in advance so the parallel alignment is only for sequences that are similar?
For the slide: Non probabilistic in “profiles and PSSMs”
what does the a, b stand for? the position of the residue?
And you mentioned that after calculating the score with the substitution, MSA will be run. Could you elaborate more on what happen after calculating the score.
Please explain the problem with average profile again
How do u determine the rough estimate for training an HMM.
You have mentioned something being used very commonly in the field now because it was fast and efficient but I couldn’t get the term (It was mentioned during HMM-HMM alignment slide in profile-profile alignment video at the very end)
Thx!