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==Overview==
==Overview==
We have determined the high resolution crystal structure of the, methyltransferase domain of the NS5 polypeptide from the Murray Valley, encephalitis virus. This domain is unusual in having both the N7 and 2'-O, methyltransferase activity required for Cap 1 synthesis. We have also, determined structures for complexes of this domain with nucleotides and, cap analogues providing information on cap binding, based on which we, suggest a model of how the sequential methylation of the N7 and 2'-O, groups of the cap may be coordinated.
We have determined the high resolution crystal structure of the methyltransferase domain of the NS5 polypeptide from the Murray Valley encephalitis virus. This domain is unusual in having both the N7 and 2'-O methyltransferase activity required for Cap 1 synthesis. We have also determined structures for complexes of this domain with nucleotides and cap analogues providing information on cap binding, based on which we suggest a model of how the sequential methylation of the N7 and 2'-O groups of the cap may be coordinated.


==About this Structure==
==About this Structure==
Line 16: Line 16:
[[Category: Alderton, D.]]
[[Category: Alderton, D.]]
[[Category: Assenberg, R.]]
[[Category: Assenberg, R.]]
[[Category: Fuller, S.D.]]
[[Category: Fuller, S D.]]
[[Category: Grimes, J.M.]]
[[Category: Grimes, J M.]]
[[Category: Hurrelbrink, R.J.]]
[[Category: Hurrelbrink, R J.]]
[[Category: OPPF, Oxford.Protein.Production.Facility.]]
[[Category: OPPF, Oxford Protein Production Facility.]]
[[Category: Owens, R.J.]]
[[Category: Owens, R J.]]
[[Category: Ren, J.]]
[[Category: Ren, J.]]
[[Category: Stuart, D.I.]]
[[Category: Stuart, D I.]]
[[Category: Verma, A.]]
[[Category: Verma, A.]]
[[Category: Walter, T.S.]]
[[Category: Walter, T S.]]
[[Category: GTP]]
[[Category: GTP]]
[[Category: SAH]]
[[Category: SAH]]
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[[Category: structural genomics]]
[[Category: structural genomics]]


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Revision as of 19:34, 21 February 2008

File:2pxa.jpg


2pxa, resolution 2.30Å

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Crystal structure of the Murray Valley Encephalitis Virus NS5 2'-O Methyltransferase domain in complex with SAH and GTPG

OverviewOverview

We have determined the high resolution crystal structure of the methyltransferase domain of the NS5 polypeptide from the Murray Valley encephalitis virus. This domain is unusual in having both the N7 and 2'-O methyltransferase activity required for Cap 1 synthesis. We have also determined structures for complexes of this domain with nucleotides and cap analogues providing information on cap binding, based on which we suggest a model of how the sequential methylation of the N7 and 2'-O groups of the cap may be coordinated.

About this StructureAbout this Structure

2PXA is a Single protein structure of sequence from Murray valley encephalitis virus with and as ligands. Active as RNA-directed RNA polymerase, with EC number 2.7.7.48 Full crystallographic information is available from OCA.

ReferenceReference

Crystal structure of the Murray Valley encephalitis virus NS5 methyltransferase domain in complex with cap analogues., Assenberg R, Ren J, Verma A, Walter TS, Alderton D, Hurrelbrink RJ, Fuller SD, Bressanelli S, Owens RJ, Stuart DI, Grimes JM, J Gen Virol. 2007 Aug;88(Pt 8):2228-36. PMID:17622627

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