1NS6	Oxygen Storage Transport	date	Jan 27, 2003
title	The 2.1a Structure Of Horse (Alpha Hemichromebeta Met) Hemo Ph 5.4
authors	V.L.Robinson, B.B.Smith, A.Arnone
compound		source
Molecule: Hemoglobin Alpha Subunit Chain: A Fragment: Alpha Subunit Other_details: Ph 5.4 Hemichrome Structure		Organism_scientific: Equus Caballus Organism_common: Horse Organism_taxid: 9796
Molecule: Hemoglobin Beta Subunit Chain: B Fragment: Beta Subunit Other_details: Ph 5.4 Hemichrome Structure		Organism_scientific: Equus Caballus Organism_common: Horse Organism_taxid: 9796
symmetry	Space Group: C 1 2 1	R_factor 0.163 R_Free 0.188
crystal cell	length a length b length c angle alpha angle beta angle gamma 108.110 63.330 53.850 90.00 84.72 90.00
method	X-Ray Diffraction	resolution	2.05 Å
ligand	HEM	enzyme
related structures	by homologous chain: 1G09, 1HBR, 2HBS
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] (52 Kb) [Save to disk] Biological Unit Coordinates (1ns6.pdb1.gz) 93 Kb LPC: Ligand-Protein Contacts for 1NS6 CSU: Contacts of Structural Units for 1NS6 Likely Quarternary Molecular Structure file(s) for 1NS6 Structure Factors (157 Kb) Retrieve 1NS6 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NS6 from S2C, [Save to disk] Re-refined 1ns6 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1NS6 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 1NS6

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 1NS6, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ns6a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1ns6b_, 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: [1ns6_A] [1ns6_B] [1ns6] SWISS-PROT database: [P01958] [P02062] Domain organization of [HBA_HORSE] [HBB_HORSE] by SWISSPFAM

Other resources with information on 1NS6

Community annotation for 1NS6 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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