2R7M	Ligase	date	Sep 09, 2007
title	Crystal Structure Of Faicar Synthetase (Purp) From M. Jannas Complexed With Amp
authors	Y.Zhang, R.H.White, S.E.Ealick
compound		source
Molecule: 5-Formaminoimidazole-4-Carboxamide-1-(Beta)-D-Rib 5'-Monophosphate Synthetase; Chain: A Synonym: 5-Aminoimidazole-4-Carboxamide-1-Beta-D-Ribofurano Monophosphate-Formate Ligase; Ec: 6.3.4.- Engineered: Yes		Organism_scientific: Methanocaldococcus Jannaschii Organism_taxid: 2190 Gene: Purp Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_cell_line: B834(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet19
symmetry	Space Group: H 3 2	R_factor 0.204 R_Free 0.257
crystal cell	length a length b length c angle alpha angle beta angle gamma 109.446 109.446 256.257 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	AMP, CL, SO4	enzyme	Ligase E.C.6.3.4 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal structure and function of 5-formaminoimidazole-4-carboxamide ribonucleotide synthetase from Methanocaldococcus jannaschii., Zhang Y, White RH, Ealick SE, Biochemistry. 2008 Jan 8;47(1):205-17. Epub 2007 Dec 11. PMID:18069798

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (65 Kb) [Save to disk] Biological Unit Coordinates (2r7m.pdb1.gz) 351 Kb LPC: Ligand-Protein Contacts for 2R7M CSU: Contacts of Structural Units for 2R7M Likely Quarternary Molecular Structure file(s) for 2R7M Structure Factors (207 Kb) Retrieve 2R7M in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2R7M from S2C, [Save to disk] Re-refined 2r7m structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2R7M 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 2R7M

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 2R7M, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2r7m] [2r7m_A] SWISS-PROT database: [Q57600] Domain organization of [PURP_METJA] by SWISSPFAM

Other resources with information on 2R7M

Community annotation for 2R7M at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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