2bt8
From Proteopedia
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| - | [[Image:2bt8.gif|left|200px]] | + | [[Image:2bt8.gif|left|200px]] |
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| - | '''STRUCTURE OF THE C-TERMINAL RECEPTOR-BINDING DOMAIN OF AVIAN REOVIRUS FIBRE SIGMAC, SPACE GROUP P6322.''' | + | {{Structure |
| + | |PDB= 2bt8 |SIZE=350|CAPTION= <scene name='initialview01'>2bt8</scene>, resolution 3.00Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
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| + | '''STRUCTURE OF THE C-TERMINAL RECEPTOR-BINDING DOMAIN OF AVIAN REOVIRUS FIBRE SIGMAC, SPACE GROUP P6322.''' | ||
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==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 2BT8 is a [ | + | 2BT8 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Avian_orthoreovirus Avian orthoreovirus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BT8 OCA]. |
==Reference== | ==Reference== | ||
| - | Structure of the carboxy-terminal receptor-binding domain of avian reovirus fibre sigmaC., Guardado Calvo P, Fox GC, Hermo Parrado XL, Llamas-Saiz AL, Costas C, Martinez-Costas J, Benavente J, van Raaij MJ, J Mol Biol. 2005 Nov 18;354(1):137-49. Epub 2005 Sep 30. PMID:[http:// | + | Structure of the carboxy-terminal receptor-binding domain of avian reovirus fibre sigmaC., Guardado Calvo P, Fox GC, Hermo Parrado XL, Llamas-Saiz AL, Costas C, Martinez-Costas J, Benavente J, van Raaij MJ, J Mol Biol. 2005 Nov 18;354(1):137-49. Epub 2005 Sep 30. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16236316 16236316] |
[[Category: Avian orthoreovirus]] | [[Category: Avian orthoreovirus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: viral protein]] | [[Category: viral protein]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 16:06:23 2008'' |
Revision as of 14:06, 20 March 2008
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STRUCTURE OF THE C-TERMINAL RECEPTOR-BINDING DOMAIN OF AVIAN REOVIRUS FIBRE SIGMAC, SPACE GROUP P6322.
Overview
Avian reovirus fibre, a homo-trimer of the sigmaC protein, is responsible for primary host cell attachment. The protein expressed in bacteria forms elongated fibres comprised of a carboxy-terminal globular head domain and a slender shaft, and partial proteolysis yielded a carboxy-terminal protease-stable domain that was amenable to crystallisation. Here, we show that this fragment retains receptor-binding capability and report its structure, solved using two-wavelength anomalous diffraction and refined using data collected from three different crystal forms at 2.1 angstroms, 2.35 angstroms and 3.0 angstroms resolution. The carboxy-terminal globular domain has a beta-barrel fold with the same overall topology as the mammalian reovirus fibre (sigma1). However, the monomers of the sigmaC trimer show a more splayed-out arrangement than in the sigma1 structure. Also resolved are two triple beta-spiral repeats of the shaft or stalk domain. The presence in the sequence of heptad repeats amino-terminal to these triple beta-spiral repeats suggests that the unresolved portion of the shaft domain contains a triple alpha-helical coiled-coil structure. Implications for the function and stability of the sigmaC protein are discussed.
About this Structure
2BT8 is a Single protein structure of sequence from Avian orthoreovirus. Full crystallographic information is available from OCA.
Reference
Structure of the carboxy-terminal receptor-binding domain of avian reovirus fibre sigmaC., Guardado Calvo P, Fox GC, Hermo Parrado XL, Llamas-Saiz AL, Costas C, Martinez-Costas J, Benavente J, van Raaij MJ, J Mol Biol. 2005 Nov 18;354(1):137-49. Epub 2005 Sep 30. PMID:16236316
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