1NCN Immune System date Dec 05, 2002
title The Receptor-Binding Domain Of Human B7-2
authors X.Zhang, J.D.Schwartz, S.C.Almo, S.G.Nathenson
compound source
Molecule: T Lymphocyte Activation Antigen Cd86
Chain: A, B
Fragment: Ig V-Type Domain
Synonym: B7-2, Activation B7-2 Antigen, Ctla-4 Counter- Receptor B7.2, B70, Fun-1, Bu63;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: B7-2
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3), B834(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet3a
symmetry Space Group: P 21 21 2
R_factor 0.214 R_Free 0.278
length a length b length c angle alpha angle beta angle gamma
56.690 63.010 58.610 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.70 Å
Primary referenceCrystal structure of the receptor-binding domain of human B7-2: insights into organization and signaling., Zhang X, Schwartz JC, Almo SC, Nathenson SG, Proc Natl Acad Sci U S A 2003 Mar 4;100(5):2586-91. PMID:12606712
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (40 Kb) [Save to disk]
  • Biological Unit Coordinates (1ncn.pdb1.gz) 19 Kb
  • Biological Unit Coordinates (1ncn.pdb2.gz) 19 Kb
  • CSU: Contacts of Structural Units for 1NCN
  • Likely Quarternary Molecular Structure file(s) for 1NCN
  • Structure Factors (68 Kb)
  • Retrieve 1NCN in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1NCN from S2C, [Save to disk]
  • Re-refined 1ncn structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1NCN 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 1NCN
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1NCN, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ncna_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1ncnb_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1ncn 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: [1ncn] [1ncn_A] [1ncn_B]
  • SWISS-PROT database: [P42081]
  • Domain organization of [CD86_HUMAN] by SWISSPFAM
  • Domain found in 1NCN: [IGv ] by SMART
  • Other resources with information on 1NCN
  • Community annotation for 1NCN 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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