1px5
From Proteopedia
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| - | [[Image:1px5.gif|left|200px]] | + | [[Image:1px5.gif|left|200px]] |
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| - | '''Crystal structure of the 2'-specific and double-stranded RNA-activated interferon-induced antiviral protein 2'-5'-oligoadenylate synthetase''' | + | {{Structure |
| + | |PDB= 1px5 |SIZE=350|CAPTION= <scene name='initialview01'>1px5</scene>, resolution 1.74Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=SO4:SULFATE ION'>SO4</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= OAS1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9823 Sus scrofa]) | ||
| + | }} | ||
| + | |||
| + | '''Crystal structure of the 2'-specific and double-stranded RNA-activated interferon-induced antiviral protein 2'-5'-oligoadenylate synthetase''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1PX5 is a [ | + | 1PX5 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PX5 OCA]. |
==Reference== | ==Reference== | ||
| - | Crystal structure of the 2'-specific and double-stranded RNA-activated interferon-induced antiviral protein 2'-5'-oligoadenylate synthetase., Hartmann R, Justesen J, Sarkar SN, Sen GC, Yee VC, Mol Cell. 2003 Nov;12(5):1173-85. PMID:[http:// | + | Crystal structure of the 2'-specific and double-stranded RNA-activated interferon-induced antiviral protein 2'-5'-oligoadenylate synthetase., Hartmann R, Justesen J, Sarkar SN, Sen GC, Yee VC, Mol Cell. 2003 Nov;12(5):1173-85. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14636576 14636576] |
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Sus scrofa]] | [[Category: Sus scrofa]] | ||
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[[Category: four helix bundle]] | [[Category: four helix bundle]] | ||
| - | ''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 13:30:05 2008'' |
Revision as of 11:30, 20 March 2008
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| , resolution 1.74Å | |||||||
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| Ligands: | |||||||
| Gene: | OAS1 (Sus scrofa) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of the 2'-specific and double-stranded RNA-activated interferon-induced antiviral protein 2'-5'-oligoadenylate synthetase
Overview
2'-5'-oligoadenylate synthetases are interferon-induced, double-stranded RNA-activated antiviral enzymes which are the only proteins known to catalyze 2'-specific nucleotidyl transfer. This crystal structure of a 2'-5'-oligoadenylate synthetase reveals a structural conservation with the 3'-specific poly(A) polymerase that, coupled with structure-guided mutagenesis, supports a conserved catalytic mechanism for the 2'- and 3'-specific nucleotidyl transferases. Comparison with structures of other superfamily members indicates that the donor substrates are bound by conserved active site features while the acceptor substrates are oriented by nonconserved regions. The 2'-5'-oligoadenylate synthetases are activated by viral double-stranded RNA in infected cells and initiate a cellular response by synthesizing 2'-5'-oligoadenylates, which in turn activate RNase L. This crystal structure suggests that activation involves a domain-domain shift and identifies a putative dsRNA activation site that is probed by mutagenesis, thus providing structural insight into cellular recognition of viral double-stranded RNA.
About this Structure
1PX5 is a Single protein structure of sequence from Sus scrofa. Full crystallographic information is available from OCA.
Reference
Crystal structure of the 2'-specific and double-stranded RNA-activated interferon-induced antiviral protein 2'-5'-oligoadenylate synthetase., Hartmann R, Justesen J, Sarkar SN, Sen GC, Yee VC, Mol Cell. 2003 Nov;12(5):1173-85. PMID:14636576
Page seeded by OCA on Thu Mar 20 13:30:05 2008
