2AFR image
Deposition Date 2005-07-26
Release Date 2006-04-04
Last Version Date 2024-03-13
Entry Detail
PDB ID:
2AFR
Keywords:
ISOMERASE
Title:
The Crystal Structure of Putative Precorrin Isomerase CbiC in Cobalamin Biosynthesis
Biological Source:
Source Organism:
Leptospira interrogans (Taxon ID: 173)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.30 Å
R-Value Free:
0.28
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
P 31 2 1
2AFR validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:cobalamin biosynthesis precorrin isomerase
Gene (Uniprot):cbiC
Chain IDs:A
Chain Length:231
Number of Molecules:1
Biological Source:Leptospira interrogans
UniProt ID:Q8EXP7 Pfam ID:PF02570 EC:5.4.99.60
Primary Citation
The crystal structure of putative precorrin isomerase CbiC in cobalamin biosynthesis
J.Struct.Biol. 153 307 311 (2006)
PMID: 16427313 DOI: 10.1016/j.jsb.2005.11.011

Abstact

The leptospira cbiC encodes the enzyme catalyzing the methyl rearrangement reaction of the cobalamin biosynthesis pathway. The protein has been cloned and overexpressed as a His-tagged recombinant protein in Escherichia coli. The crystal structures have been solved in two crystal forms (P4(2)2(1)2 and P3(1)21) diffracting to 3.0 and 2.3A resolution, respectively. The structures are similar to the precorrin-8x methyl mutase (CobH), an enzyme of the aerobic pathway to vitamin B12.

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Disease

Primary Citation of related structures
2AFV