3fop

From Proteopedia

A Triangular Cytochrome b562 Superstructure Mediated by Ni Coordination - Hexagonal Form

PDB ID 3fop

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Structural highlights

3fop is a 2 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 3Å
Ligands:	, ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

C562_ECOLX Electron-transport protein of unknown function.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

We previously devised a strategy (metal-directed protein self-assembly, MDPSA) that utilizes the simultaneous stability, lability, and directionality of metal-ligand bonds to drive protein-protein interactions. Here we show that both the structural and functional scopes of MDPSA can be broadened by incorporation of non-natural metal-chelating ligands onto protein surfaces. A cytochrome cb(562) variant, MBP-Phen1, which features a covalently attached phenanthroline (Phen) group on its surface, self-assembles into an unusual triangular architecture (Ni(3):MBP-Phen1(3)) upon binding Ni as a result of specific Phen-protein interactions. The crystal structure of Ni(3):MBP-Phen1(3) reveals that the Phen group is buried in a small pocket on the protein surface, which results in an unsaturated Ni coordination environment.

A superprotein triangle driven by nickel(II) coordination: exploiting non-natural metal ligands in protein self-assembly.,Radford RJ, Tezcan FA J Am Chem Soc. 2009 Jul 8;131(26):9136-7. PMID:19527025^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Radford RJ, Tezcan FA. A superprotein triangle driven by nickel(II) coordination: exploiting non-natural metal ligands in protein self-assembly. J Am Chem Soc. 2009 Jul 8;131(26):9136-7. PMID:19527025 doi:10.1021/ja9000695