1NSI Oxidoreductase date Jan 10, 1999
title Human Inducible Nitric Oxide Synthase, Zn-Bound, L-Arg Compl
authors H.Li, C.S.Raman, C.B.Glaser, E.Blasko, T.A.Young, J.F.Parkinson, M T.L.Poulos
compound source
Molecule: Protein (Nitric Oxide Synthase)
Chain: A, B, C, D
Fragment: Heme Domain
Synonym: Inos
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Cell: Adenocarcinoma Dld-1
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 43 21 2
R_factor 0.209 R_Free 0.243
length a length b length c angle alpha angle beta angle gamma
187.350 187.350 227.490 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.55 Å
ligand ARG, GOL, H4B, HEM, SO4, ZN enzyme Oxidoreductase E.C. BRENDA
related structures by homologous chain: 1K2S, 1M9J
Primary referenceCrystal structures of zinc-free and -bound heme domain of human inducible nitric-oxide synthase. Implications for dimer stability and comparison with endothelial nitric-oxide synthase., Li H, Raman CS, Glaser CB, Blasko E, Young TA, Parkinson JF, Whitlow M, Poulos TL, J Biol Chem 1999 Jul 23;274(30):21276-84. PMID:10409685
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (299 Kb) [Save to disk]
  • Biological Unit Coordinates (1nsi.pdb1.gz) 149 Kb
  • Biological Unit Coordinates (1nsi.pdb2.gz) 148 Kb
  • LPC: Ligand-Protein Contacts for 1NSI
  • CSU: Contacts of Structural Units for 1NSI
  • Likely Quarternary Molecular Structure file(s) for 1NSI
  • Retrieve 1NSI in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1NSI from S2C, [Save to disk]
  • View 1NSI 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 1NSI
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1NSI, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1nsia_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1nsib_, region B [Jmol] [rasmolscript] [script source]
        - Domain d1nsic_, region C [Jmol] [rasmolscript] [script source]
        - Domain d1nsid_, region D [Jmol] [rasmolscript] [script source]
  • Fold representative 1nsi from FSSP and Dali (Families of Structurally Similar Proteins)
  • 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: [1nsi] [1nsi_B] [1nsi_D] [1nsi_A] [1nsi_C]
  • SWISS-PROT database: [P35228]
  • Domain organization of [NOS2_HUMAN] by SWISSPFAM
  • Other resources with information on 1NSI
  • Community annotation for 1NSI at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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