ISDA

Deposition Date 2018-09-02

Release Date 2019-01-23

Last Version Date 2024-10-23

Entry Detail

PDB ID:

6MCX

Keywords:

hydrolase, viral protein

Title:

INFLUENZA VIRUS NEURAMINIDASE SUBTYPE N9 (TERN) RECOMBINANT HEAD DOMAIN

Biological Source:

Source Organism:

Influenza A virus (strain A/Tern/Australia/G70C/1975 H11N9) (Taxon ID: 384509)

Host Organism:

Insect cell expression vector pTIE1

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.30 Å

R-Value Free:

0.20

R-Value Work:

0.14

R-Value Observed:

0.15

Space Group:

I 4 3 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Neuraminidase
Gene (Uniprot):NA
Chain IDs:A
Chain Length:388
Number of Molecules:1
Biological Source:Influenza A virus (strain A/Tern/Australia/G70C/1975 H11N9)

UniProt ID:P03472 Pfam ID:PF00064

Ligand Molecules

GOL

NAG

Primary Citation

Structure of an Influenza A virus N9 neuraminidase with a tetrabrachion-domain stalk.

Streltsov, V.A, Schmidt, P.M, McKimm-Breschkin, J.L.Show

Acta Crystallogr.,Sect.F 75 89 97 (2019)

PMID: 30713159 DOI: 10.1107/S2053230X18017892

Abstact

The influenza neuraminidase (NA) is a homotetramer with head, stalk, transmembrane and cytoplasmic regions. The structure of the NA head with a stalk has never been determined. The NA head from an N9 subtype influenza A virus, A/tern/Australia/G70C/1975 (H1N9), was expressed with an artificial stalk derived from the tetrabrachion (TB) tetramerization domain from Staphylothermus marinus. The NA was successfully crystallized both with and without the TB stalk, and the structures were determined to 2.6 and 2.3 Å resolution, respectively. Comparisons of the two NAs with the native N9 NA structure from egg-grown virus showed that the artificial TB stalk maintained the native NA head structure, supporting previous biological observations.

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