2QKB	Hydrolase Dna Rna	date	Jul 10, 2007
title	Human Rnase H Catalytic Domain Mutant D210n In Complex With Rnadna Hybrid
authors	M.Nowotny, S.A.Gaidamakov, R.Ghirlando, S.M.Cerritelli, R.J.Crou
compound		source
Molecule: 5'-R(Gpgpapgpupgpcpgpapcpapcpcpupg Cpc)-3'); Chain: C Engineered: Yes		Synthetic: Yes
Molecule: 5'-D(Dgpdgpdapdapdtpdcpdapdgpdgpdtpdgp Gpdcpdapdcpdtpdcpdt)-3'; Chain: D Engineered: Yes		Synthetic: Yes
Molecule: Ribonuclease H1 Chain: A, B Fragment: C-Terminal Domain (Residues 134-286) Synonym: Hs-Rnase Hc; Rnase H1; Ribonuclease H Type II Ec: 3.1.26.4 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Rnaseh1, Rnh1 Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet15
symmetry	Space Group: P 32 2 1	R_factor 0.208 R_Free 0.255
crystal cell	length a length b length c angle alpha angle beta angle gamma 109.991 109.991 67.253 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.40 Å
ligand	EDO, MSE, SO4	enzyme	Hydrolase E.C.3.1.26.4 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Structure of human RNase H1 complexed with an RNA/DNA hybrid: insight into HIV reverse transcription., Nowotny M, Gaidamakov SA, Ghirlando R, Cerritelli SM, Crouch RJ, Yang W, Mol Cell. 2007 Oct 26;28(2):264-76. PMID:17964265

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (71 Kb) [Save to disk] Biological Unit Coordinates (2qkb.pdb1.gz) 65 Kb LPC: Ligand-Protein Contacts for 2QKB CSU: Contacts of Structural Units for 2QKB Likely Quarternary Molecular Structure file(s) for 2QKB Structure Factors (155 Kb) Retrieve 2QKB in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2QKB from S2C, [Save to disk] Re-refined 2qkb structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2QKB 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 2QKB

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 2QKB, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2qkb] [2qkb_A] [2qkb_D] [2qkb_C] [2qkb_B] SWISS-PROT database: [O60930] Domain organization of [RNH1_HUMAN] by SWISSPFAM

Other resources with information on 2QKB

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

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