Trends Plant Sci. 2007 Nov;12(11):492-6. Epub 2007 Oct 24.

POFs: what we don't know can hurt us.

Gollery M, Harper J, Cushman J, Mittler T, Mittler R.

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TimeLogic - a Division of Active Motif, Incline Village, NV 89451, USA.

Abstract

Over a quarter of all eukaryotic genes encode proteins with obscure features that lack currently defined motifs or domains (POFs). Interestingly, most of the differences in gene repertoire among species were recently found to be attributed to POFs. A comparison of the Arabidopsis, rice and poplar genomes reveals that Arabidopsis contains 5069 POFs, of which 2045 have no obvious homologs in rice or poplar and are likely to be involved in species- or phylogenetic-specific functions in Arabidopsis. The study of POFs is an important endeavor that will shed much needed light on the genetic properties that make any given plant species unique. Furthermore, with respect to many species-specific features, such studies show that we seem to be limited in what we can expect to learn from a model plant such as Arabidopsis.

PMID:: 17928258; [PubMed - indexed for MEDLINE]

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Plant Proteins

Grant Support

P20 RR-016464/RR/NCRR NIH HHS/United States

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