2B1G	Transferase, Hydrolase	date	Sep 15, 2005
title	Crystal Structures Of Transition State Analogue Inhibitors O Monophosphate Cyclohydrolase
authors	L.Xu, Y.Chong, I.Hwang, A.D'Onofrio, K.Amore, G.P.Beardsley, C.Li, A.J.Olson, D.L.Boger, I.A.Wilson
compound		source
Molecule: Bifunctional Purine Biosynthesis Protein Purh Chain: A, B, C, D Ec: 3.5.4.10, 2.1.2.3 Engineered: Yes Other_details: Includes Phosphoribosylaminoimidazolecarboxa Formyltransferase (Aicar Transformylase), Imp Cyclohydrolas (Inosinicase, Imp Synthetase, Atic)		Organism_scientific: Gallus Gallus Organism_common: Chicken Organism_taxid: 9031 Gene: Atic, Purh Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet28a
symmetry	Space Group: P 1	R_factor 0.199 R_Free 0.248
crystal cell	length a length b length c angle alpha angle beta angle gamma 57.200 62.000 196.600 80.80 81.50 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	13A, K, PO4	enzyme	Hydrolase E.C.3.5.4.10 BRENDA
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Structure-based Design, Synthesis, Evaluation, and Crystal Structures of Transition State Analogue Inhibitors of Inosine Monophosphate Cyclohydrolase., Xu L, Chong Y, Hwang I, D'Onofrio A, Amore K, Beardsley GP, Li C, Olson AJ, Boger DL, Wilson IA, J Biol Chem. 2007 Apr 27;282(17):13033-46. Epub 2007 Feb 26. PMID:17324932

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (746 Kb) [Save to disk] Biological Unit Coordinates (2b1g.pdb1.gz) 372 Kb Biological Unit Coordinates (2b1g.pdb2.gz) 374 Kb LPC: Ligand-Protein Contacts for 2B1G CSU: Contacts of Structural Units for 2B1G Likely Quarternary Molecular Structure file(s) for 2B1G Structure Factors (2019 Kb) Retrieve 2B1G in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2B1G from S2C, [Save to disk] Re-refined 2b1g structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2B1G in 3D

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Visual 3D analysis of 2B1G

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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 2B1G, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2b1g_C] [2b1g_D] [2b1g_B] [2b1g_A] [2b1g] SWISS-PROT database: [P31335] Domain organization of [PUR9_CHICK] by SWISSPFAM Domains found in 2B1G: [AICARFT_IMPCHas] [MGS ] by SMART

Other resources with information on 2B1G

Community annotation for 2B1G at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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