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1fxw

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[[Image:1fxw.gif|left|200px]]
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{{STRUCTURE_1fxw| PDB=1fxw | SCENE= }}
{{STRUCTURE_1fxw| PDB=1fxw | SCENE= }}
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'''CRYSTAL STRUCTURE OF THE RECOMBINANT ALPHA1/ALPHA2 CATALYTIC HETERODIMER OF BOVINE BRAIN PLATELET-ACTIVATING FACTOR ACETYLHYDROLASE IB.'''
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===CRYSTAL STRUCTURE OF THE RECOMBINANT ALPHA1/ALPHA2 CATALYTIC HETERODIMER OF BOVINE BRAIN PLATELET-ACTIVATING FACTOR ACETYLHYDROLASE IB.===
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==Overview==
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The intracellular form of mammalian platelet activating factor acetylhydrolase found in brain (PAF-AH Ib) is thought to play a critical role in control in neuronal migration during cortex development. This oligomeric complex consists of a homodimer of the 45 kDa (beta) LIS1 protein, the product of the causative gene for type I lissencephaly, and, depending on the developmental stage and species, one of three possible pairs of two homologous approximately 26 kDa alpha-subunits, which harbor all of the catalytic activity. The exact composition of this complex depends on the expression patterns of the alpha(1) and alpha(2) genes, exhibiting tissue specificity and developmental control. All three possible dimers (alpha(1)/alpha(1), alpha(1)/alpha(2) and alpha(2)/alpha(2)) were identified in tissues. The alpha(1)/alpha(2) heterodimer is thought to play an important role in fetal brain. The structure of the alpha(1)/alpha(1) homodimer was solved earlier in our laboratory at 1.7 A. We report here the preparation of recombinant alpha(1)/alpha(2) heterodimers using a specially constructed bi-cistronic expression vector. The approach may be useful in studies of other systems where pure heterodimers of recombinant proteins are required. The alpha(1)/alpha(2) dimer has been crystallized and its structure was solved at 2.1 A resolution by molecular replacement. These results set the stage for a detailed characterization of the PAF-AH Ib complex.
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(as it appears on PubMed at http://www.pubmed.gov), where 11522926 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11522926}}
==About this Structure==
==About this Structure==
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[[Category: Li, J.]]
[[Category: Li, J.]]
[[Category: Alpha beta hydrolase fold]]
[[Category: Alpha beta hydrolase fold]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 04:06:19 2008''

Revision as of 01:06, 1 July 2008

Image:1fxw.png

Template:STRUCTURE 1fxw

CRYSTAL STRUCTURE OF THE RECOMBINANT ALPHA1/ALPHA2 CATALYTIC HETERODIMER OF BOVINE BRAIN PLATELET-ACTIVATING FACTOR ACETYLHYDROLASE IB.

Template:ABSTRACT PUBMED 11522926

About this Structure

1FXW is a Protein complex structure of sequences from Bos taurus. Full crystallographic information is available from OCA.

Reference

Preparation and crystal structure of the recombinant alpha(1)/alpha(2) catalytic heterodimer of bovine brain platelet-activating factor acetylhydrolase Ib., Sheffield PJ, McMullen TW, Li J, Ho YS, Garrard SM, Derewenda U, Derewenda ZS, Protein Eng. 2001 Jul;14(7):513-9. PMID:11522926

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