Jul 21, 2025 · The Basic Local Alignment Search Tool (BLAST) finds regions of local similarity between sequences. The program compares nucleotide or protein sequences to sequence databases and …

Standard Nucleotide BLAST BLASTN programs search nucleotide databases using a nucleotide query. more...

Mar 17, 2025 · The Basic Local Alignment Search Tool (BLAST) finds regions of local similarity between sequences. The program compares nucleotide or protein sequences to sequence databases and …

Jul 14, 2011 · A statistical parameter used in calculating BLAST scores that can be thought of as a natural scale for search space size. The value K is used in converting a raw score (S) to a bit score (S').

The Basic Local Alignment Search Tool (BLAST) finds regions of local similarity between protein or nucleotide sequences. The program compares nucleotide or protein sequences to sequence in a …

The BLAST programs are command line programs that run BLAST searches against local, downloaded copies of the NCBI BLAST databases, or against custom databases formatted for BLAST.

Jan 28, 2011 · The NCBI supports a BLAST web page at blast.ncbi.nlm.nih.gov as well as a network service. The NCBI also distributes stand-alone BLAST applications for users who wish to run BLAST …

Welcome to BLAST Help ¶ Getting started ¶ Web BLAST quick start guide New BLAST databases New Guide to BLAST home and search pages Blast report description Blast topics Frequently Asked …

BLAST accepts a number of different types of input and automatically determines the format or the input. To allow this feature there are certain conventions required with regard to the input of identifiers …

This blast page allows you to blast a given set of sequences to find matches to those sequences/genes represented by entries in the GEO database. Matching hits will have "E" gif icons links to …