Sometimes one just isn't enough: do vertebrates contain an H2A.Z hyper-variant?

doi:10.1186/jbiol214

Journal of Biology

Volume 9
Issue 1

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Sometimes one just isn't enough: do vertebrates contain an H2A.Z hyper-variant?

Monika Mehta^*, Hyun-Soo Kim^* and Michael-Christopher Keogh

Department of Cell Biology, Albert Einstein College of Medicine, New York, NY 10461, USA

author email corresponding author email* Contributed equally

Journal of Biology 2010, 9:3doi:10.1186/jbiol214


Published:	21 January 2010

Abstract

How much functional specialization can one component histone confer on a single nucleosome? The histone variant H2A.Z seems to be an extreme example. Genome-wide distribution maps show non-random (and evolutionarily conserved) patterns, with localized enrichment or depletion giving a tantalizing suggestion of function. Multiple post-translational modifications on the protein indicate further regulation. An additional layer of complexity has now been uncovered: the vertebrate form is actually encoded by two non-allelic genes that differ by expression pattern and three amino acids.

See research articles http://www.biomedcentral.com/1741-7007/7/86 webcite and http://www.biomedcentral.com/1471-2148/9/31 webcite.