1NS9	Oxygen Storage Transport	date	Jan 27, 2003
title	The 1.6a Structure Of Horse Methemoglobin At Ph 7.1
authors	V.L.Robinson, B.B.Smith, A.Arnone
compound		source
Molecule: Hemoglobin Alpha Subunit Chain: A Fragment: Alpha Subunit Other_details: Ph 7.1 Aquomet Structure		Organism_scientific: Equus Caballus Organism_common: Horse Organism_taxid: 9796
Molecule: Hemoglobin Beta Subunit Chain: B Fragment: Beta Subunit Other_details: Ph 7.1 Aquomet Structure		Organism_scientific: Equus Caballus Organism_common: Horse Organism_taxid: 9796
symmetry	Space Group: C 1 2 1	R_factor 0.180 R_Free 0.195
crystal cell	length a length b length c angle alpha angle beta angle gamma 108.400 63.200 54.600 90.00 110.90 90.00
method	X-Ray Diffraction	resolution	1.60 Å
ligand	HEM	enzyme
related structures	by homologous chain: 1J3Z, 1J7Y, 1WMU
Gene Ontology	Chain Function Process Component A B peroxidase activity
Primary reference	A pH-dependent aquomet-to-hemichrome transition in crystalline horse methemoglobin., Robinson VL, Smith BB, Arnone A, Biochemistry 2003 Sep 2;42(34):10113-25. PMID:12939139

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (53 Kb) [Save to disk] Biological Unit Coordinates (1ns9.pdb1.gz) 93 Kb LPC: Ligand-Protein Contacts for 1NS9 CSU: Contacts of Structural Units for 1NS9 Likely Quarternary Molecular Structure file(s) for 1NS9 Structure Factors (317 Kb) Retrieve 1NS9 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NS9 from S2C, [Save to disk] Re-refined 1ns9 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1NS9 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 1NS9

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 1NS9, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ns9a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1ns9b_, 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: [1ns9] [1ns9_B] [1ns9_A] SWISS-PROT database: [P01958] [P02062] Domain organization of [HBA_HORSE] [HBB_HORSE] by SWISSPFAM

Other resources with information on 1NS9

Community annotation for 1NS9 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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