3KTQ	Transferase Dna	date	Jul 28, 1998
title	Crystal Structure Of An Active Ternary Complex Of The Large Of Dna Polymerase I From Thermus Aquaticus
authors	Y.Li, G.Waksman
compound		source
Molecule: Dna (5'-D(Gpapcpcpapcpgpgpcpgpcpdoc)- Chain: B Engineered: Yes		Synthetic: Yes
Molecule: Dna (5'-D(Apgpgpgpcpgpcpcpgptpgpgptp Chain: C Engineered: Yes Other_details: Complexed With 2',3'-Dideoxycytidine 5'-Trip		Synthetic: Yes
Molecule: Protein (Large Fragment Of Dna Polymerase I) Chain: A Ec: 2.7.7.7 Engineered: Yes		Organism_scientific: Thermus Aquaticus Organism_taxid: 271 Strain: X7029 Gene: Taq Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: X7029 Expression_system_plasmid: Pwb254
symmetry	Space Group: P 31 2 1	R_factor 0.218 R_Free 0.275
crystal cell	length a length b length c angle alpha angle beta angle gamma 108.028 108.028 90.167 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	DCT, DOC, MG	enzyme	Transferase E.C.2.7.7.7 BRENDA
related structures	by homologous chain: 1BGX, 2KTQ
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal structures of open and closed forms of binary and ternary complexes of the large fragment of Thermus aquaticus DNA polymerase I: structural basis for nucleotide incorporation., Li Y, Korolev S, Waksman G, EMBO J 1998 Dec 15;17(24):7514-25. PMID:9857206

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (102 Kb) [Save to disk] Biological Unit Coordinates (3ktq.pdb1.gz) 96 Kb LPC: Ligand-Protein Contacts for 3KTQ CSU: Contacts of Structural Units for 3KTQ Likely Quarternary Molecular Structure file(s) for 3KTQ Retrieve 3KTQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3KTQ from S2C, [Save to disk]

View 3KTQ 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 3KTQ

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 3KTQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d3ktqa1, region A:293-422 [Jmol] [rasmolscript] [script source]     - Domain d3ktqa2, region A:423-831 [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: [3ktq_A] [3ktq_C] [3ktq_B] [3ktq] SWISS-PROT database: [P19821] Domain organization of [DPO1_THEAQ] by SWISSPFAM Domain found in 3KTQ: [POLAc ] by SMART

Other resources with information on 3KTQ

Community annotation for 3KTQ at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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