3EPI	Transferase Dna	date	Sep 29, 2008
title	Structure Of Human Dna Polymerase Iota Complexed With N2-Eth And Incoming Ttp
authors	M.G.Pence
compound		source
Molecule: Dna Polymerase Iota Chain: A Fragment: Catalytic Fragment (Unp Residues 1-420) Synonym: Rad30 Homolog B, Eta2 Ec: 2.7.7.7 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Poli, Rad30b Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3) Rosetta 2 Cells Expression_system_vector_type: Plasmid Expression_system_plasmid: Pmal
Molecule: 5'-D(Dtpdcpdtp(2eg) Pdgpdgpdgpdtpdcpdcpdtpdapdgpdgpdapdcpdcp(Doc) Chain: B, C Engineered: Yes		Synthetic: Yes Other_details: A Self-Annealing Oligonucletoide Was Synthes Midland Certified Reagents Containing N2-Ethylgaunine Using Phosphoramidite Chemistry
symmetry	Space Group: P 65 2 2	R_factor 0.236 R_Free 0.282
crystal cell	length a length b length c angle alpha angle beta angle gamma 98.643 98.643 202.231 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.90 Å
ligand	2EG, DOC, NA, PO4	enzyme	Transferase E.C.2.7.7.7 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	Lesion bypass of N2-ethylguanine by human DNA polymerase iota., Pence MG, Blans P, Zink CN, Hollis T, Fishbein JC, Perrino FW, J Biol Chem. 2009 Jan 16;284(3):1732-40. Epub 2008 Nov 3. PMID:18984581

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (73 Kb) [Save to disk] Biological Unit Coordinates (3epi.pdb1.gz) 128 Kb LPC: Ligand-Protein Contacts for 3EPI CSU: Contacts of Structural Units for 3EPI Likely Quarternary Molecular Structure file(s) for 3EPI Structure Factors (205 Kb) Retrieve 3EPI in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3EPI from S2C, [Save to disk] Re-refined 3epi structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3EPI 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 3EPI

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 3EPI, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3epi_C] [3epi] [3epi_B] [3epi_A] SWISS-PROT database: [Q9UNA4] Domain organization of [POLI_HUMAN] by SWISSPFAM

Other resources with information on 3EPI

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

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