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Nucleic Acids Research 2007 35(Database issue):D165-D168; doi:10.1093/nar/gkl870
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Nucleic Acids Research, 2007, Vol. 35, Database issue D165-D168
© 2006 The Author(s)
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Articles

PolyA_DB 2: mRNA polyadenylation sites in vertebrate genes

Ju Youn Lee, Ijen Yeh, Ji Yeon Park and Bin Tian*

Department of Biochemistry and Molecular Biology, New Jersey Medical School University of Medicine and Dentistry of New Jersey, Newark, NJ 07101-1709, USA

*To whom correspondence should be addressed. Tel: +1 973 972 3615; Fax: +1 973 972 5594; Email: btian{at}umdnj.edu

Received September 15, 2006. Accepted October 6, 2006.

Polyadenylation of nascent transcripts is one of the key mRNA processing events in eukaryotic cells. A large number of human and mouse genes have alternative polyadenylation sites, or poly(A) sites, leading to mRNA variants with different protein products and/or 3'-untranslated regions (3'-UTRs). PolyA_DB 2 contains poly(A) sites identified for genes in several vertebrate species, including human, mouse, rat, chicken and zebrafish, using alignments between cDNA/ESTs and genome sequences. Several new features have been added to the database since its last release, including syntenic genome regions for human poly(A) sites in seven other vertebrates and cis-element information adjacent to poly(A) sites. Trace sequences are used to provide additional evidence for poly(A/T) tails in cDNA/ESTs. The updated database is intended to broaden poly(A) site coverage in vertebrate genomes, and provide means to assess the authenticity of poly(A) sites identified by bioinformatics. The URL for this database is http://polya.umdnj.edu/PolyA_DB2.

The authors wish it to be known that, in their opinion, the first two authors should be regarded as joint First Authors


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