1Q1K	Transferase	date	Jul 21, 2003
title	Structure Of Atp-Phosphoribosyltransferase From E. Coli Comp Pr-Atp
authors	B.Lohkamp, G.Mcdermott, J.R.Coggins, A.J.Lapthorn
compound		source
Molecule: Atp Phosphoribosyltransferase Chain: A Ec: 2.4.2.17 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Hisg Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: B824(De3)Plyss Expression_system_vector_type: Plasmid Expression_system_plasmid: Ptb361
symmetry	Space Group: H 3 2	R_factor 0.210 R_Free 0.272
crystal cell	length a length b length c angle alpha angle beta angle gamma 132.100 132.100 113.379 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.90 Å
ligand	PRT, TLA	enzyme	Transferase E.C.2.4.2.17 BRENDA
related structures	by homologous chain: 1H3D
Gene Ontology	Chain Function Process Component A
Primary reference	The structure of Escherichia coli ATP-phosphoribosyltransferase: identification of substrate binding sites and mode of AMP inhibition., Lohkamp B, McDermott G, Campbell SA, Coggins JR, Lapthorn AJ, J Mol Biol 2004 Feb 6;336(1):131-44. PMID:14741209

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (52 Kb) [Save to disk] Biological Unit Coordinates (1q1k.pdb1.gz) 264 Kb LPC: Ligand-Protein Contacts for 1Q1K CSU: Contacts of Structural Units for 1Q1K Likely Quarternary Molecular Structure file(s) for 1Q1K Retrieve 1Q1K in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1Q1K from S2C, [Save to disk]

View 1Q1K 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 1Q1K

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1Q1K, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1q1ka2, region A:225-299 [Jmol] [rasmolscript] [script source]     - Domain d1q1ka1, region A:5-224 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1q1k_A] [1q1k] SWISS-PROT database: [P60757] Domain organization of [HIS1_ECOLI] by SWISSPFAM

Other resources with information on 1Q1K

Community annotation for 1Q1K at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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