ISDA: 3VOL

Deposition Date 2012-01-27

Release Date 2012-05-23

Last Version Date 2024-03-20

Entry Detail

PDB ID:

3VOL

Keywords:

SIGNALING PROTEIN

Title:

X-ray Crystal Structure of PAS-HAMP Aer2 in the CN-bound Form

Biological Source:

Source Organism:

Pseudomonas aeruginosa (Taxon ID: 208964)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.26

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

P 65 2 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Aerotaxis transducer Aer2
Gene (Uniprot):mcpB
Chain IDs:A
Chain Length:233
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa

UniProt ID:Q9I6V6 Pfam ID:PF13188, PF18947

Ligand Molecules

CYN

HEM

Primary Citation

Structural basis for oxygen sensing and signal transduction of the heme-based sensor protein Aer2 from Pseudomonas aeruginosa

Sawai, H, Sugimoto, H, Shiro, Y, Ishikawa, H, Mizutani, Y, Aono, S.Show

Chem.Commun.(Camb.) 48 6523 6525 (2012)

PMID: 22622145 DOI: 10.1039/c2cc32549g

Abstact

The crystal structure of a truncated Aer2, a signal transducer protein from Pseudomonas aeruginosa, consisting of the heme-containing PAS and di-HAMP domains revealed that a distal tryptophan residue (Trp283) plays an important role in stabilizing the heme-bound O(2) and intra-molecular signal transduction upon O(2) binding.

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Primary Citation of related structures