1REQ	Isomerase	date	Jan 19, 1996
title	Methylmalonyl-Coa Mutase
authors	P.R.Evans, F.Mancia
compound		source
Molecule: Methylmalonyl-Coa Mutase Chain: A, C Ec: 5.4.99.2 Engineered: Yes Other_details: Chains A And C Include Coenzyme B12, Desulph A Glycerol In The Active Site. B12 Is Present Largely As Re Cob(II)Alamin, Or B12r.;		Organism_scientific: Propionibacterium Freudenreichii Subsp Shermanii; Organism_taxid: 1752 Strain: Ncib 9885 Cell_line: 293 Gene: Muta Mutb Expression_system: K38 Pgp1-2 Expression_system_strain: 293 Expression_system_plasmid: Pmex1 Expression_system_gene: Muta, Mutb Other_details: The 2 Genes Muta (Beta Chain) And Mutb (Alph Are Coexpressed From The Same Plasmid;
Molecule: Methylmalonyl-Coa Mutase Chain: B, D Ec: 5.4.99.2 Engineered: Yes Other_details: Chains A And C Include Coenzyme B12, Desulph A Glycerol In The Active Site. B12 Is Present Largely As Re Cob(II)Alamin, Or B12r.		Organism_scientific: Propionibacterium Freudenreichii Subsp Shermanii; Organism_taxid: 1752 Strain: Ncib 9885 Cell_line: 293 Gene: Muta Mutb Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: 293 Expression_system_plasmid: Pmex1 Expression_system_gene: Muta, Mutb Other_details: The 2 Genes Muta (Beta Chain) And Mutb (Alph Are Coexpressed From The Same Plasmid
symmetry	Space Group: P 1 21 1	R_factor 0.220 R_Free 0.275
crystal cell	length a length b length c angle alpha angle beta angle gamma 119.800 161.300 88.400 90.00 105.10 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	B12, DCA, GOL	enzyme	Isomerase E.C.5.4.99.2 BRENDA
related structures	by homologous chain: 7REQ
Gene Ontology	Chain Function Process Component A, C D, B
Primary reference	How coenzyme B12 radicals are generated: the crystal structure of methylmalonyl-coenzyme A mutase at 2 A resolution., Mancia F, Keep NH, Nakagawa A, Leadlay PF, McSweeney S, Rasmussen B, Bosecke P, Diat O, Evans PR, Structure 1996 Mar 15;4(3):339-50. PMID:8805541

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (453 Kb) [Save to disk] Biological Unit Coordinates (1req.pdb1.gz) 226 Kb Biological Unit Coordinates (1req.pdb2.gz) 225 Kb LPC: Ligand-Protein Contacts for 1REQ CSU: Contacts of Structural Units for 1REQ Likely Quarternary Molecular Structure file(s) for 1REQ Structure Factors (3775 Kb) Retrieve 1REQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1REQ from S2C, [Save to disk] Re-refined 1req structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1REQ 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 1REQ

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 1REQ, from MSDmotif at EBI Genome occurence of 1REQ's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1reqa1, region A:2-560 [Jmol] [rasmolscript] [script source]     - Domain d1reqa2, region A:561-728 [Jmol] [rasmolscript] [script source]     - Domain d1reqb1, region B:20-475 [Jmol] [rasmolscript] [script source]     - Domain d1reqb2, region B:476-638 [Jmol] [rasmolscript] [script source]     - Domain d1reqc1, region C:2-560 [Jmol] [rasmolscript] [script source]     - Domain d1reqc2, region C:561-728 [Jmol] [rasmolscript] [script source]     - Domain d1reqd1, region D:17-475 [Jmol] [rasmolscript] [script source]     - Domain d1reqd2, region D:476-638 [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1req_C] [1req_A] [1req_D] [1req_B] [1req] SWISS-PROT database: [P11652] [P11653] Domain organization of [MUTA_PROFR] [MUTB_PROFR] by SWISSPFAM

Other resources with information on 1REQ

Community annotation for 1REQ at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 1REQ from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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