RefSeq and LocusLink growth
over a 1-year period. (A) The number of RefSeq
records for human, mouse and rat for mid-September of 1999 and 2000. These
numbers include genes for which multiple reference sequences are
provided to represent splice variants and their products. As of
September 2000, 10 301 human reference sequence mRNAs (and their
corresponding proteins) are provided for 9954 genes. The number
of human RefSeq records in three categories is also indicated (Hs,
human); Genome Annotation reference sequence numbers are not included.
Rat, mouse and predicted human RefSeq records became available after
September 1999. (B) Loci available in LocusLink
for September of 1999 and 2000. Mouse, rat, zebrafish and fruit
fly genomes were added after September 1999. Of the 17 214 known
human loci, 14 103 have some associated sequence data (including
ESTs), and 9954 loci have at least one mRNA and protein reference sequence.