kaptive

About kaptive

From Debian's package description

Kaptive reports information about K and O types for Klebsiella genome assemblies.

Given a novel genome and a database of known loci (K or O), Kaptive will help a user to decide whether their sample has a known or novel locus. It carries out the following for each input assembly:

• BLAST for all known locus nucleotide sequences (using blastn) to identify the best match ('best' defined as having the highest coverage).
• Extract the region(s) of the assembly which correspond to the BLAST hits (i.e. the locus sequence in the assembly) and save it to a FASTA file.
• BLAST for all known locus genes (using tblastn) to identify which expected genes (genes in the best matching locus) are present/missing and whether any unexpected genes (genes from other loci) are present.
• Output a summary to a table file.

In cases where your input assembly closely matches a known locus, Kaptive should make that obvious. When your assembly has a novel type, that too should be clear. However, Kaptive cannot reliably extract or annotate locus sequences for totally novel types - if it indicates a novel locus is present then extracting and annotating the sequence is up to you! Very poor assemblies can confound the results, so be sure to closely examine any case where the locus sequence in your assembly is broken into multiple pieces.

From Debian's description of the kaptive package, under that package's license.