2HQA	Transferase	date	Jul 18, 2006
title	Crystal Structure Of The Catalytic Alpha Subunit Of E. Coli Replicative Dna Polymerase III
authors	M.H.Lamers, R.E.Georgescu, S.G.Lee, M.O'Donnell, J.Kuriyan
compound		source
Molecule: Dna Polymerase III Alpha Subunit Chain: A Fragment: Catalytic Fragment (Residues 1-917) Ec: 2.7.7.7 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Dnae Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 (De3) Plyss Expression_system_vector_type: Plasmid Expression_system_plasmid: Novagen Pet3d
symmetry	Space Group: P 21 21 21	R_factor 0.219 R_Free 0.287
crystal cell	length a length b length c angle alpha angle beta angle gamma 83.112 98.264 139.475 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.60 Å
ligand	MSE, PO4	enzyme	Transferase E.C.2.7.7.7 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal Structure of the Catalytic alpha Subunit of E. coli Replicative DNA Polymerase III., Lamers MH, Georgescu RE, Lee SG, O'donnell M, Kuriyan J, Cell. 2006 Sep 8;126(5):881-92. PMID:16959568

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (156 Kb) [Save to disk] Biological Unit Coordinates (2hqa.pdb1.gz) 146 Kb LPC: Ligand-Protein Contacts for 2HQA CSU: Contacts of Structural Units for 2HQA Likely Quarternary Molecular Structure file(s) for 2HQA Structure Factors (980 Kb) Retrieve 2HQA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2HQA from S2C, [Save to disk] Re-refined 2hqa structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2HQA 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 2HQA

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 2HQA, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2hqa] [2hqa_A] SWISS-PROT database: [P10443] Domain organization of [DPO3A_ECOLI] by SWISSPFAM Domain found in 2HQA: [POLIIIAc ] by SMART

Other resources with information on 2HQA

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

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