4NOS Oxidoreductase date Feb 03, 1999
title Human Inducible Nitric Oxide Synthase With Inhibitor
authors T.O.Fischmann, P.C.Weber
compound source
Molecule: Inducible Nitric Oxide Synthase
Chain: A, B, C, D
Fragment: Oxygenase Domain
Synonym: Inos, Nos2
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_plasmid: Pinos60-3
symmetry Space Group: P 21 21 21
R_factor 0.199 R_Free 0.289
length a length b length c angle alpha angle beta angle gamma
89.759 156.672 190.044 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.25 Å
ligand H2B, H4B, HEM, ITU, ZN BindingDB enzyme Oxidoreductase E.C. BRENDA
related structures by homologous chain: 1DD7, 2NOS
A, D, C, B

Primary referenceStructural characterization of nitric oxide synthase isoforms reveals striking active-site conservation., Fischmann TO, Hruza A, Niu XD, Fossetta JD, Lunn CA, Dolphin E, Prongay AJ, Reichert P, Lundell DJ, Narula SK, Weber PC, Nat Struct Biol 1999 Mar;6(3):233-42. PMID:10074942
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (317 Kb) [Save to disk]
  • Biological Unit Coordinates (4nos.pdb1.gz) 158 Kb
  • Biological Unit Coordinates (4nos.pdb2.gz) 156 Kb
  • LPC: Ligand-Protein Contacts for 4NOS
  • CSU: Contacts of Structural Units for 4NOS
  • Likely Quarternary Molecular Structure file(s) for 4NOS
  • Retrieve 4NOS in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4NOS from S2C, [Save to disk]
  • View 4NOS 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 4NOS
  • 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 4NOS, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d4nosa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d4nosb_, region B [Jmol] [rasmolscript] [script source]
        - Domain d4nosc_, region C [Jmol] [rasmolscript] [script source]
        - Domain d4nosd_, region D [Jmol] [rasmolscript] [script source]
  • Fold representative 4nos 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: [4nos_A] [4nos] [4nos_C] [4nos_B] [4nos_D]
  • SWISS-PROT database: [P35228]
  • Domain organization of [NOS2_HUMAN] by SWISSPFAM
  • Other resources with information on 4NOS
  • Community annotation for 4NOS 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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