ISDA

Deposition Date 2007-09-06

Release Date 2007-12-18

Last Version Date 2023-12-13

Entry Detail

PDB ID:

2VB3

Keywords:

METAL TRANSPORT

Title:

Crystal structure of Ag(I)CusF

Biological Source:

Source Organism:

ESCHERICHIA COLI (Taxon ID: 562)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.33 Å

R-Value Free:

0.26

R-Value Work:

0.24

R-Value Observed:

0.24

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:CATION EFFLUX SYSTEM PROTEIN CUSF
Gene (Uniprot):cusF
Chain IDs:A (auth: X)
Chain Length:88
Number of Molecules:1
Biological Source:ESCHERICHIA COLI

UniProt ID:P77214 Pfam ID:PF11604

Ligand Molecules

Primary Citation

Cu(I) Recognition Via Cation-Pi and Methionine Interactions in Cusf.

Xue, Y, Davis, A.V, Balakrishnan, G, Stasser, J.P, Staehlin, B.M, Focia, P, Spiro, T.G, Penner-Hahn, J.E, O'Halloran, T.V.Show

Nat.Chem.Biol. 4 107 ? (2008)

PMID: 18157124 DOI: 10.1038/NCHEMBIO.2007.57

Abstact

Methionine-rich motifs have an important role in copper trafficking factors, including the CusF protein. Here we show that CusF uses a new metal recognition site wherein Cu(I) is tetragonally displaced from a Met2His ligand plane toward a conserved tryptophan. Spectroscopic studies demonstrate that both thioether ligation and strong cation-pi interactions with tryptophan stabilize metal binding. This novel active site chemistry affords mechanisms for control of adventitious metal redox and substitution chemistry.

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Disease

Primary Citation of related structures