1H2Q Immune System Protein date Aug 13, 2002
title Human Cd55 Domains 3 & 4
authors P.Williams, Y.Chaudhry, I.G.Goodfellow, J.Billington, R.Powell, O.B.Spiller, D.J.Evans, S.M.Lea
compound source
Molecule: Complement Decay-Accelerating Factor
Chain: P
Fragment: Extracellular Scr Domains 3 & 4, Residues 161-285;
Synonym: Cd55 Antigen, Cd55, Daf
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Pichia Pastoris
Expression_system_taxid: 4922
symmetry Space Group: P 21 21 21
R_factor 0.263 R_Free 0.319
crystal
cell
length a length b length c angle alpha angle beta angle gamma
31.000 36.900 107.500 90.00 90.00 90.00
method X-Ray Diffractionresolution 3.0 Å
related structures by homologous chain: 1NWV, 1OK9
Primary referenceMapping CD55 function. The structure of two pathogen-binding domains at 1.7 A., Williams P, Chaudhry Y, Goodfellow IG, Billington J, Powell R, Spiller OB, Evans DJ, Lea S, J Biol Chem 2003 Mar 21;278(12):10691-6. Epub 2002 Dec 22. PMID:12499389
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (19 Kb) [Save to disk]
  • Biological Unit Coordinates (1h2q.pdb1.gz) 16 Kb
  • CSU: Contacts of Structural Units for 1H2Q
  • Likely Quarternary Molecular Structure file(s) for 1H2Q
  • Retrieve 1H2Q in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1H2Q from S2C, [Save to disk]
  • View 1H2Q 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 1H2Q
  • 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 1H2Q, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1h2qp1, region P:5-66 [Jmol] [rasmolscript] [script source]
        - Domain d1h2qp2, region P:67-129 [Jmol] [rasmolscript] [script source]
  • Fold representative 1h2q 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: [1h2q] [1h2q_P]
  • SWISS-PROT database: [P08174]
  • Domain organization of [DAF_HUMAN] by SWISSPFAM
  • Domain found in 1H2Q: [CCP ] by SMART
  • Other resources with information on 1H2Q
  • Community annotation for 1H2Q 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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