1TH5 image
Entry Detail
PDB ID:
1TH5
Title:
Solution structure of C-terminal domain of NifU-like protein from Oryza sativa
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2004-06-01
Release Date:
2005-09-27
Method Details:
Experimental Method:
Conformers Calculated:
100
Conformers Submitted:
20
Selection Criteria:
target function
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:NifU1
Chain IDs:A
Chain Length:74
Number of Molecules:1
Biological Source:Oryza sativa
Ligand Molecules
Primary Citation
The NMR structure of the domain II of a chloroplastic NifU-like protein OsNifU1A.
J.Biomol.Nmr 38 161 164 (2007)
PMID: 17431550 DOI: 10.1007/s10858-007-9155-9

Abstact

NifU-like proteins are a highly conserved protein that serves as the scaffold for assembly of Fe-S clusters. Chloroplastic NifU-like proteins have tandem NifU like domains, named domain I and domain II. Although the amino acid sequences of these domains are very similar to each other, the predicted functional region for the Fe-S cluster assembly, the CXXC motif, exists only in domain I. The structure of the domain II of chloroplastic NifU-like protein OsNifU1A has an alpha-beta sandwich structure containing two alpha helices located on one side of the beta-sheet. The electrostatic surface potential of OsNifU1A domain II is predominantly positively charged. Chloroplastic NifU-like proteins are targeted to ferredoxin for transferring the Fe-S cluster. The ferredoxin presents an overall negatively charged surface, which may evoke an electrostatic association with OsNifU1A domain II.

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Primary Citation of related structures