Although it is too late to patch the files of Release 192.0, we have
deployed a new version of the flatfile generator into production that
fixes these formatting errors. Records appearing in the GenBank
Incremental Update (GIU) and RefSeq Incremental Update (RIU) products
at the NCBI FTP site utilize the correct format as of October 24 2012.
We expect that the same will be true for flatfiles viewed in
Entrez:Nucleotide within a week or so (the Entrez QA protocol requires
Upon generation of December's GenBank Release 193.0, this error will
also be corrected in the release files.
Our apologies for any inconvenience that this causes for our users.
In Section 1.3 of the GenBank 192.0 Release Notes (gbrel.txt), we
incorrectly stated that:
"So as of the October 2012 GenBank release, the /frequency qualifier has
been deprecated. Existing values for the qualifier are now presented via the
/note qualifier of source features, and GenBank submission tools are being
updated to cease support of /frequency."
However, this *only* applies to /frequency qualifiers on source
Obviously, the /frequency qualifier provides information that is very
important for any variation feature, and it will continue to be supported
in that context. Only /frequency for source features has been deprecated.
Our apologies for mis-stating the nature of the /frequency change.