ISDA

Deposition Date 2017-04-14

Release Date 2017-09-06

Last Version Date 2023-10-04

Entry Detail

PDB ID:

5VI7

Keywords:

VIRAL PROTEIN

Title:

Crystal structure of the Zika virus NS3 helicase

Biological Source:

Source Organism:

Zika virus (Taxon ID: 64320)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.01 Å

R-Value Free:

0.20

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:helicase
Chain IDs:A
Chain Length:443
Number of Molecules:1
Biological Source:Zika virus

UniProt ID:Q32ZE1 Pfam ID:PF07652, PF20907 EC:2.7.7.48

Ligand Molecules

SO4

Primary Citation

Crystal structures of the methyltransferase and helicase from the ZIKA 1947 MR766 Uganda strain.

Bukrejewska, M, Derewenda, U, Radwanska, M, Engel, D.A, Derewenda, Z.S.Show

Acta Crystallogr D Struct Biol 73 767 774 (2017)

PMID: 28876240 DOI: 10.1107/S2059798317010737

Abstact

Two nonstructural proteins encoded by Zika virus strain MR766 RNA, a methyltransferase and a helicase, were crystallized and their structures were solved and refined at 2.10 and 2.01 Å resolution, respectively. The NS5 methyltransferase contains a bound S-adenosyl-L-methionine (SAM) co-substrate. The NS3 helicase is in the apo form. Comparison with published crystal structures of the helicase in the apo, nucleotide-bound and single-stranded RNA (ssRNA)-bound states suggests that binding of ssRNA to the helicase may occur through conformational selection rather than induced fit.

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Protein

Chemical

Disease

Primary Citation of related structures