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1prs

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{{STRUCTURE_1prs| PDB=1prs | SCENE= }}
{{STRUCTURE_1prs| PDB=1prs | SCENE= }}
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'''NMR-DERIVED THREE-DIMENSIONAL SOLUTION STRUCTURE OF PROTEIN S COMPLEXED WITH CALCIUM'''
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===NMR-DERIVED THREE-DIMENSIONAL SOLUTION STRUCTURE OF PROTEIN S COMPLEXED WITH CALCIUM===
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==Overview==
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BACKGROUND: Protein S is a developmentally-regulated Ca(2+)-binding protein of the soil bacterium Myxococcus xanthus. It functions by forming protective, multilayer spore surface assemblies which may additionally act as a cell-cell adhesive. Protein S is evolutionarily related to vertebrate lens beta gamma-crystallins. RESULTS: The three-dimensional solution structure of Ca(2+)-loaded protein S has been determined using multi-dimensional heteronuclear NMR spectroscopy. (Sixty structures were calculated, from which thirty were selected with a root mean square difference from the mean of 0.38 A for backbone atoms and 1.22 A for all non-hydrogen atoms.) The structure was analyzed and compared in detail with X-ray crystallographic structures of beta gamma-crystallins. The two internally homologous domains of protein S were compared, and hydrophobic cores, domain interfaces, surface ion pairing, amino-aromatic interactions and potential modes of multimerization are discussed. CONCLUSIONS: Structural features of protein S described here help to explain its overall thermostability, as well as the higher stability and Ca2+ affinity of the amino-terminal domain relative to the carboxy-terminal domain. Two potential modes of multimerization are proposed involving cross-linking of protein S molecules through surface Ca(2+)-binding sites and formation of the intramolecular protein S or gamma B-crystallin interdomain interface in an intermolecular content. This structural analysis may also have implications for Ca(2+)-dependent cell-cell interactions mediated by the vertebrate cadherins and Dictyostelium discoideum protein gp24.
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{{ABSTRACT_PUBMED_8081742}}
==About this Structure==
==About this Structure==
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1PRS is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Myxococcus_xanthus Myxococcus xanthus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PRS OCA].
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1PRS is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Myxococcus_xanthus Myxococcus xanthus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PRS OCA].
==Reference==
==Reference==
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[[Category: Inouye, S.]]
[[Category: Inouye, S.]]
[[Category: Binding protein]]
[[Category: Binding protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 05:24:44 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 07:41:30 2008''

Revision as of 04:41, 29 July 2008

Image:1prs.png

Template:STRUCTURE 1prs

NMR-DERIVED THREE-DIMENSIONAL SOLUTION STRUCTURE OF PROTEIN S COMPLEXED WITH CALCIUM

Template:ABSTRACT PUBMED 8081742

About this Structure

1PRS is a Single protein structure of sequence from Myxococcus xanthus. Full experimental information is available from OCA.

Reference

NMR-derived three-dimensional solution structure of protein S complexed with calcium., Bagby S, Harvey TS, Eagle SG, Inouye S, Ikura M, Structure. 1994 Feb 15;2(2):107-22. PMID:8081742

Page seeded by OCA on Tue Jul 29 07:41:30 2008

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