Title
Pseudofam: the pseudogene families database.
Abstract
Pseudofam (http://pseudofam.pseudogene.org) is a database of pseudogene families based on the protein families from the Pfam database. It provides resources for analyzing the family structure of pseudogenes including query tools, statistical summaries and sequence alignments. The current version of Pseudofam contains more than 125 000 pseudogenes identified from 10 eukaryotic genomes and aligned within nearly 3000 families (approximately one-third of the total families in PfamA). Pseudofam uses a large-scale parallelized homology search algorithm (implemented as an extension of the PseudoPipe pipeline) to identify pseudogenes. Each identified pseudogene is assigned to its parent protein family and subsequently aligned to each other by transferring the parent domain alignments from the Pfam family. Pseudogenes are also given additional annotation based on an ontology, reflecting their mode of creation and subsequent history. In particular, our annotation highlights the association of pseudogene families with genomic features, such as segmental duplications. In addition, pseudogene families are associated with key statistics, which identify outlier families with an unusual degree of pseudogenization. The statistics also show how the number of genes and pseudogenes in families correlates across different species. Overall, they highlight the fact that housekeeping families tend to be enriched with a large number of pseudogenes.
Year
DOI
Venue
2009
10.1093/nar/gkn758
NUCLEIC ACIDS RESEARCH
Keywords
Field
DocType
sequence alignment,protein family
Sequence alignment,Pseudogene,Genome,Protein family,Annotation,Biology,Genomics,Homology (biology),Genetics,Database,Segmental duplication
Journal
Volume
Issue
ISSN
37
Database-Issue
0305-1048
Citations 
PageRank 
References 
4
0.61
12
Authors
7
Name
Order
Citations
PageRank
Hugo Y K Lam11036.39
Ekta Khurana2202.20
Gang Fang340.61
Philip Cayting4253.87
Nicholas Carriero52469475.93
Kei-hoi Cheung666460.65
Mark B. Gerstein723918.21