#GC-Profile: a web-based tool for #visualizing and analyzing the #variation of #GC content in #genomic sequences https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1538862/
#Download #blastDB #locally. $ wget "ftp://ftp.ncbi.nlm.nih.gov/blast/db/nt.*.tar.gz" for NT and wget "ftp://ftp.ncbi.nlm.nih.gov/blast/db/nr.*.tar.gz" for NR