ISDA

Deposition Date 2013-07-06

Release Date 2014-02-26

Last Version Date 2024-10-30

Entry Detail

PDB ID:

3WEE

Keywords:

TRANSCRIPTION REGULATOR

Title:

Structure of the full-length yeast Arp7-Arp9 Heterodimer

Biological Source:

Source Organism:

Saccharomyces cerevisiae (Taxon ID: 559292)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.10 Å

R-Value Free:

0.21

R-Value Work:

0.19

R-Value Observed:

0.20

Space Group:

P 31 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Actin-like protein ARP9
Gene (Uniprot):ARP9
Mutations:M1G
Chain IDs:A
Chain Length:476
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae

UniProt ID:Q05123 Pfam ID:PF00022

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Actin-related protein 7
Gene (Uniprot):ARP7
Chain IDs:B
Chain Length:485
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae

UniProt ID:Q12406 Pfam ID:PF00022

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
CMH	A	CYS	S-(METHYLMERCURY)-L-CYSTEINE

Ligand Molecules

CXS

SO4

Primary Citation

Structure of the full-length yeast Arp7-Arp9 heterodimer.

Lobsiger, J, Hunziker, Y, Richmond, T.J.Show

Acta Crystallogr.,Sect.D 70 310 316 (2014)

PMID: 24531465 DOI: 10.1107/S1399004713027417

Abstact

The nuclear actin-related proteins Arp7 and Arp9 are components of the yeast SWI/SNF and RSC chromatin-remodelling complexes. The 3.1 Å resolution crystal structure reported here shows that the full-length Arp7 and Arp9 proteins exist as a dimer without a requirement for additional polypeptides. Of the 11 actin-related proteins, Arp7 and Arp9 are the only two directly demonstrated to form a dimer within this family. The Arp7-Arp9 heterodimer is unlikely to form an actin-like filament based on modelling using the structure. The Arp7-Arp9 structure reveals that its dimerization interface is not altered when bound in a complex with the SWI/SNF Snf2 HSA domain and the regulatory protein Rtt102.

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Primary Citation of related structures