ISDA

Deposition Date 2007-05-14

Release Date 2007-05-29

Last Version Date 2023-08-30

Entry Detail

PDB ID:

2PXA

Keywords:

TRANSFERASE

Title:

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

Biological Source:

Source Organism:

Murray valley encephalitis virus (strain MVE-1-51) (Taxon ID: 301478)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.30 Å

R-Value Free:

0.24

R-Value Work:

0.18

R-Value Observed:

0.19

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Genome polyprotein [Contains: Capsid protein C (Core protein); Envelope protein M (Matrix protein); Major envelope protein E; Non-structural protein 1 (NS1); Non-structural protein 2A (NS2A); Flavivirin protease NS2B regulatory subunit; Flavivirin protease NS3 catalytic subunit; Non-structural protein 4A (NS4A); Non-structural protein 4B (NS4B); RNA-directed RNA polymerase (EC 2.7.7.48) (NS5)]
Chain IDs:A, B
Chain Length:269
Number of Molecules:2
Biological Source:Murray valley encephalitis virus (strain MVE-1-51)

UniProt ID:P05769 Pfam ID:PF01728 EC:3.4.21.91

Ligand Molecules

GTP

SAH

Primary Citation

Crystal structure of the Murray Valley encephalitis virus NS5 methyltransferase domain in complex with cap analogues.

Assenberg, R, Ren, J, Verma, A, Walter, T.S, Alderton, D, Hurrelbrink, R.J, Fuller, S.D, Bressanelli, S, Owens, R.J, Stuart, D.I, Grimes, J.M.Show

J.Gen.Virol. 88 2228 2236 (2007)

PMID: 17622627 DOI: 10.1099/vir.0.82757-0

Abstact

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.

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Primary Citation of related structures