Tutorial for PSI-BLAST, an extension of BLAST that uses matrix algebra. BLAST is a cornerstone bioinformatics tool at NCBI. BLAST is the
Basic Local Alignment Search tool and will protein and DNA sequences that
are related to a sequence that the user provides.
Presented July 30, 2014 and covering: an NCBI BLAST AMI at Amazon Web Services; introduction to AWS and setting up an instance; running command line BLAST and using the BLAST URL API via the AMI; and answers to attendee questions.
How to download FASTA sequence for certain gene features while in the NCBI's Sequence Viewer.
Sequence Viewer homepage:
Sequence Viewer playlist: