toms at fcs260c2.ncifcrf.gov
Tue Oct 29 14:01:43 EST 1991
==> #1: [Weight=100, 1 word; pyrc]
LOCUS ECOPYRC 2046 bp ds-DNA BCT 15-SEP-1989
DEFINITION Escherichia coli pyrC gene encoding dihydroorotase, complete cds.
ACCESSION D00002 N00002
KEYWORDS dihydroorotase; pyrC; pyrimidine nucleotide metabolism.
SOURCE Escherichia coli DNA, clone pEC135.
ORGANISM Escherichia coli
#3: [Weight=59, 1 word; pyrc]
LOCUS ECOPYRH 2046 bp ds-DNA BCT 18-MAY-1991
DEFINITION E. coli pyrC gene for dihydroorotase
ACCESSION X04469 D00002 N00002
KEYWORDS 4,5-L-dihydroorotate amidohydrolase; dihydro-orotase;
unidentified reading frame.
SOURCE Escherichia coli DNA.
Identical accession numbers? I thought this was impossible!!!!
The sequences are identical.
If accession numbers are assigned to a unique sequence, and they only join
together when a merge is made, then how could two entries have the same
numbers? Has anyone looked through the entire database for other duplications
like this? Software which relies on these being unique will miss entries.
National Cancer Institute
Laboratory of Mathematical Biology
Frederick, Maryland 21702-1201
toms at ncifcrf.gov
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