2AFR	Isomerase	date	Jul 26, 2005
title	The Crystal Structure Of Putative Precorrin Isomerase Cbic I Cobalamin Biosynthesis
authors	Y.Xue, Z.Wei, X.Li
compound		source
Molecule: Cobalamin Biosynthesis Precorrin Isomerase Chain: A Ec: 5.4.1.2 Engineered: Yes		Organism_scientific: Leptospira Interrogans Organism_taxid: 173 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 31 2 1	R_factor 0.224 R_Free 0.284
crystal cell	length a length b length c angle alpha angle beta angle gamma 55.885 55.885 142.551 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand		enzyme	Isomerase E.C.5.4.1.2 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	The crystal structure of putative precorrin isomerase CbiC in cobalamin biosynthesis., Xue Y, Wei Z, Li X, Gong W, J Struct Biol. 2006 Mar;153(3):307-11. Epub 2005 Dec 27. PMID:16427313

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (39 Kb) [Save to disk] Biological Unit Coordinates (2afr.pdb1.gz) 34 Kb Biological Unit Coordinates (2afr.pdb2.gz) 68 Kb CSU: Contacts of Structural Units for 2AFR Likely Quarternary Molecular Structure file(s) for 2AFR Structure Factors (69 Kb) Retrieve 2AFR in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2AFR from S2C, [Save to disk] Re-refined 2afr structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2AFR in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 2AFR

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2AFR, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2afr_A] [2afr] SWISS-PROT database: [Q8EXP7] Domain organization of [Q8EXP7_LEPIN] by SWISSPFAM

Other resources with information on 2AFR

Community annotation for 2AFR at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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