GenBank Release 135: 31 Billion Base Pairs
GenBank release 135 (April 2003)
contains over 24 million sequence entries totaling more than 31 billion
base pairs. GenBank may be searched using NCBI’s Entrez search
and retrieval system or may be downloaded from the NCBI FTP site:
GenBank flatfiles can be downloaded from the “genbank” directory;
the ASN.1 version of GenBank is found in the “ncbi-asn1” directory.
Uncompressed, the Release 135 flatfiles comprise 114 gigabytes. The ASN.1 version
comprises roughly 93 gigabytes. Links
to GenBank mirror sites are available on the GenBank FTP site at:
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