1X8Q Ligand Binding Protein date Aug 18, 2004
title 0.85 A Crystal Structure Of Nitrophorin 4 From Rhodnius Prol Complex With Water At Ph 5.6
authors D.A.Kondrashov, S.A.Roberts, A.Weichsel, W.R.Montfort
compound source
Molecule: Nitrophorin 4
Chain: A
Synonym: Np4
Engineered: Yes
Organism_scientific: Rhodnius Prolixus
Organism_taxid: 13249
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21de3
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet17b
symmetry Space Group: C 1 2 1
length a length b length c angle alpha angle beta angle gamma
70.323 42.486 53.018 90.00 94.45 90.00
method X-Ray Diffractionresolution 0.85 Å
ligand HEM enzyme
note 1X8Q is a representative structure
related structures by homologous chain: 1X8P

Primary referenceProtein functional cycle viewed at atomic resolution: conformational change and mobility in nitrophorin 4 as a function of pH and NO binding., Kondrashov DA, Roberts SA, Weichsel A, Montfort WR, Biochemistry 2004 Nov 2;43(43):13637-47. PMID:15504026
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (86 Kb) [Save to disk]
  • Biological Unit Coordinates (1x8q.pdb1.gz) 81 Kb
  • LPC: Ligand-Protein Contacts for 1X8Q
  • CSU: Contacts of Structural Units for 1X8Q
  • Likely Quarternary Molecular Structure file(s) for 1X8Q
  • Structure Factors (1857 Kb)
  • Retrieve 1X8Q in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1X8Q from S2C, [Save to disk]
  • Re-refined 1x8q structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1X8Q 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 1X8Q
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Conformational Epitope Prediction for 1X8Q from the CEP Server.
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1X8Q, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1x8qa_, region A [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: [1x8q_A] [1x8q]
  • SWISS-PROT database: [Q94734]
  • Domain organization of [NP4_RHOPR] by SWISSPFAM
  • Other resources with information on 1X8Q
  • Community annotation for 1X8Q at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

  • You may enter another PDB ID code
    Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]
    OCA© by Jaime Prilusky, 1996-2014,2022
    Bioinformatics Unit
    Weizmann Institute of Science