1N45	Oxidoreductase	date	Oct 30, 2002
title	X-Ray Crystal Structure Of Human Heme Oxygenase-1 (Ho-1) In With Its Substrate Heme
authors	D.J.Schuller, A.Wilks, P.R.Ortiz De Montellano, T.L.Poulos
compound		source
Molecule: Heme Oxygenase 1 Chain: A, B Fragment: Residues 1-233 Synonym: Ho-1 Ec: 1.14.99.3 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hmox1, Ho1 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Dh5 Alpha Expression_system_vector_type: Plasmid Expression_system_plasmid: Delta 233-Hho-1
symmetry	Space Group: P 1 21 1	R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma 61.441 54.534 70.969 90.00 99.05 90.00
method	X-Ray Diffraction	resolution	1.50 Å
ligand	HEM, SO4	enzyme	Oxidoreductase E.C.1.14.99.3 BRENDA
note	1N45 supersedes 1QQ8
related structures	by homologous chain: 1OZW
Gene Ontology	Chain Function Process Component A, B
Primary reference	Comparison of the heme-free and -bound crystal structures of human heme oxygenase-1., Lad L, Schuller DJ, Shimizu H, Friedman J, Li H, Ortiz de Montellano PR, Poulos TL, J Biol Chem. 2003 Mar 7;278(10):7834-43. Epub 2002 Dec 24. PMID:12500973

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (169 Kb) [Save to disk] Biological Unit Coordinates (1n45.pdb1.gz) 83 Kb Biological Unit Coordinates (1n45.pdb2.gz) 83 Kb LPC: Ligand-Protein Contacts for 1N45 CSU: Contacts of Structural Units for 1N45 Likely Quarternary Molecular Structure file(s) for 1N45 Structure Factors (509 Kb) Retrieve 1N45 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1N45 from S2C, [Save to disk] Re-refined 1n45 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1N45 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 1N45

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1N45 1N45A 1N45B from the CEP Server. Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1N45, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1n45a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1n45b_, region B [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: [1n45_A] [1n45] [1n45_B] SWISS-PROT database: [P09601] Domain organization of [HMOX1_HUMAN] by SWISSPFAM

Other resources with information on 1N45

Community annotation for 1N45 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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