1XK0	Oxidoreductase	date	Sep 26, 2004
title	Crystal Structures Of The G139a, G139a-No And G143h Mutants Heme Oxygenase-1
authors	L.Lad, A.Koshkin, P.R.Ortiz De Montellano, T.L.Poulos
compound		source
Molecule: Heme Oxygenase 1 Chain: A, B Synonym: Ho-1 Ec: 1.14.99.3 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hmox1, Ho1, Ho Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 21 21 21	R_factor 0.224 R_Free 0.266
crystal cell	length a length b length c angle alpha angle beta angle gamma 54.060 75.968 105.299 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.18 Å
ligand	HEM, NO	enzyme	Oxidoreductase E.C.1.14.99.3 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structures of the G139A, G139A-NO and G143H mutants of human heme oxygenase-1. A finely tuned hydrogen-bonding network controls oxygenase versus peroxidase activity., Lad L, Koshkin A, de Montellano PR, Poulos TL, J Biol Inorg Chem 2005 Mar;10(2):138-46. Epub 2005 Feb 3. PMID:15690204

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (79 Kb) [Save to disk] Biological Unit Coordinates (1xk0.pdb1.gz) 38 Kb Biological Unit Coordinates (1xk0.pdb2.gz) 38 Kb LPC: Ligand-Protein Contacts for 1XK0 CSU: Contacts of Structural Units for 1XK0 Likely Quarternary Molecular Structure file(s) for 1XK0 Structure Factors (180 Kb) Retrieve 1XK0 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1XK0 from S2C, [Save to disk] Re-refined 1xk0 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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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 1XK0, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1xk0_A] [1xk0_B] [1xk0] SWISS-PROT database: [P09601] Domain organization of [HMOX1_HUMAN] by SWISSPFAM

Other resources with information on 1XK0

Community annotation for 1XK0 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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