1AH1 Immunoreceptor date Apr 11, 1997
title Ctla-4, Nmr, 20 Structures
authors W.J.Metzler, J.Bajorath, W.Fenderson, S.Y.Shaw, R.Peach, K.L.Con J.Naemura, G.Leytze, T.B.Lavoie, L.Mueller, P.S.Linsley
compound source
Molecule: Ctla-4
Chain: A
Fragment: Extracellular N-Terminal Immunoglobulin V-Like
Synonym: Cd152
Engineered: Yes
Other_details: Tetrasaccharide Core (Glcnac, Glcnac, Fucose Attached At N 78 And N 111
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Cricetulus Griseus
Expression_system_common: Chinese Hamster
Expression_system_taxid: 10029
Expression_system_cell_line: Cho
methodSolution NMR
ligand BMA, FUC, FUL, NAG enzyme
related structures by homologous chain: 1I8L

Primary referenceSolution structure of human CTLA-4 and delineation of a CD80/CD86 binding site conserved in CD28., Metzler WJ, Bajorath J, Fenderson W, Shaw SY, Constantine KL, Naemura J, Leytze G, Peach RJ, Lavoie TB, Mueller L, Linsley PS, Nat Struct Biol 1997 Jul;4(7):527-31. PMID:9228944
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (689 Kb) [Save to disk]
  • Biological Unit Coordinates (1ah1.pdb1.gz) 36 Kb
  • LPC: Ligand-Protein Contacts for 1AH1
  • CSU: Contacts of Structural Units for 1AH1
  • Original NMR restraints for 1AH1 from PDB
  • Retrieve 1AH1 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1AH1 from S2C, [Save to disk]
  • View 1AH1 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 1AH1
  • 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 1AH1, from MSDmotif at EBI
  • Genome occurence of 1AH1's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ah1__, region [Jmol] [rasmolscript] [script source]
  • Fold representative 1ah1 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: [1ah1_A] [1ah1]
  • SWISS-PROT database: [P16410]
  • Domain organization of [CTLA4_HUMAN] by SWISSPFAM
  • Domain found in 1AH1: [IGv ] by SMART
  • Other resources with information on 1AH1
  • Community annotation for 1AH1 at PDBWiki (http://pdbwiki.org)
  • NMR Ensemble (OLDERADO: core, domain and representative structure database)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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