Greetings GenBank Users,
The PUBMED linetype was introduced in December of 1997,
as a way of linking references in sequence records to
the PubMed biomedical literature database, based on a
PubMed ID (PMID) .
Since then, we have been displaying both the PMID and
its predecessor (Medline Unique ID / MUID) for all
references. For example :
LOCUS ECOGUABA 3531 bp DNA linear BCT
09-FEB-2005
DEFINITION Escherichia coli guaBA operon operon, complete sequence.
ACCESSION M10101 M10102
VERSION M10101.1 GI:146274
....
REFERENCE 1 (bases 1768 to 3531)
AUTHORS Tiedeman,A.A., Smith,J.M. and Zalkin,H.
TITLE Nucleotide sequence of the guaA gene encoding GMP synthetase of
Escherichia coli K12
JOURNAL J. Biol. Chem. 260 (15), 8676-8679 (1985)
MEDLINE 85261223
PUBMED 3894345
Subsequent to 1997, PMID article identifiers subsumed MUIDs.
Some background information about that evolution can be found at:
http://www.nlm.nih.gov/pubs/techbull/mj01/mj01_medline_ui.html
Starting with GenBank Release 147.0 in April of 2005, the older
MEDLINE linetype will be displayed in GenBank sequence records
only for (very rare) articles that lack a PMID identifier.
For the vast majority of cases, this means that the MEDLINE
linetype will no longer be displayed; only the PUBMED identifier
will be presented.
Regards,
Mark Cavanaugh
GenBank
NCBI/NLM/NIH/HHS
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