Convert BLAST NC_ labels to chromosome label

Question

[DVA]

I was trying to use BLAST output (hit table csv) files for some downstream analysis, but found that this kind of output does not have a simple chromosome number on it. It looks like:

aSU,gi|568815584|ref|NC_000014.9|,aSU,NC_000014.9,100.000,29,0,0,32,60,105863255,105863227,7.13e-06,54.7
aSU,gi|528476665|ref|NC_018913.2|,aSU,NC_018913.2,95.833,24,0,1,29,51,32271236,32271213,0.72,38.1

I do recall that the "NC_" label may stand for chromosome, but I cannot find a summary table for all the cases on NCBI website. Any help is appreciated.

Answer 1

[mastal511]

The NC_ identifiers are RefSeq chromosome identifiers.

See this previous post, How to get the chromosome numbers from RefSeq accession IDs?.

[DVA]

Thank you @mastal551