2bky

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{{STRUCTURE_2bky| PDB=2bky | SCENE= }}
{{STRUCTURE_2bky| PDB=2bky | SCENE= }}
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'''CRYSTAL STRUCTURE OF THE ALBA1:ALBA2 HETERODIMER FROM SULFOLOBUS SOLFATARICUS'''
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===CRYSTAL STRUCTURE OF THE ALBA1:ALBA2 HETERODIMER FROM SULFOLOBUS SOLFATARICUS===
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==Overview==
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Organisms growing at elevated temperatures face a particular challenge to maintain the integrity of their genetic material. All thermophilic and hyperthermophilic archaea encode one or more copies of the Alba (Sac10b) gene. Alba is an abundant, dimeric, highly basic protein that binds cooperatively and at high density to DNA. Sulfolobus solfataricus encodes a second copy of the Alba gene, and the Alba2 protein is expressed at approximately 5% of the level of Alba1. We demonstrate by NMR, ITC, and crystallography that Alba2 exists exclusively as a heterodimer with Alba1 at physiological concentrations and that heterodimerization exerts a clear effect upon the DNA packaging, as observed by EM, potentially by changing the interface between adjacent Alba dimers in DNA complexes. A functional role for Alba2 in modulation of higher order chromatin structure and DNA condensation is suggested.
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{{ABSTRACT_PUBMED_16004869}}
==About this Structure==
==About this Structure==
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Revision as of 07:02, 29 July 2008

Image:2bky.png

Template:STRUCTURE 2bky

CRYSTAL STRUCTURE OF THE ALBA1:ALBA2 HETERODIMER FROM SULFOLOBUS SOLFATARICUS

Template:ABSTRACT PUBMED 16004869

About this Structure

2BKY is a Protein complex structure of sequences from Sulfolobus solfataricus. Full crystallographic information is available from OCA.

Reference

Obligate heterodimerization of the archaeal Alba2 protein with Alba1 provides a mechanism for control of DNA packaging., Jelinska C, Conroy MJ, Craven CJ, Hounslow AM, Bullough PA, Waltho JP, Taylor GL, White MF, Structure. 2005 Jul;13(7):963-71. PMID:16004869

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