ISDA: 5YCQ

Deposition Date 2017-09-08

Release Date 2018-04-11

Last Version Date 2024-10-16

Entry Detail

PDB ID:

5YCQ

Keywords:

DNA BINDING PROTEIN

Title:

Unique Specificity-Enhancing Factor for the AAA+ Lon Protease

Biological Source:

Source Organism:

Escherichia coli (strain 55989 / EAEC) (Taxon ID: 585055)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Free:

0.26

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

H 3 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Heat shock protein HspQ
Gene (Uniprot):hspQ
Chain IDs:A
Chain Length:105
Number of Molecules:1
Biological Source:Escherichia coli (strain 55989 / EAEC)

UniProt ID:B7LE66 Pfam ID:PF08755

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
MSE	A	MET	modified residue

Primary Citation

X-ray crystal structure of Escherichia coli HspQ, a protein involved in the retardation of replication initiation

Abe, Y, Shioi, S, Kita, S, Nakata, H, Maenaka, K, Kohda, D, Katayama, T, Ueda, T.Show

FEBS Lett. 591 3805 3816 (2017)

PMID: 29083032 DOI: 10.1002/1873-3468.12892

Abstact

The heat shock protein HspQ (YccV) of Escherichia coli has been proposed to participate in the retardation of replication initiation in cells with the dnaA508 allele. In this study, we have determined the 2.5-Å-resolution X-ray structure of the trimer of HspQ, which is also the first structure of a member of the YccV superfamily. The acidic character of the HspQ trimer suggests an interaction surface with basic proteins. From these results, we discuss the cellular function of HspQ, including its relationship with the DnaA508 protein.

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