1IC1 Cell Adhesion date Mar 09, 1998
title The Crystal Structure For The N-Terminal Two Domains Of Icam
authors J.M.Casasnovas, T.Stehle, J.H.Liu, J.H.Wang, T.A.Springer
compound source
Molecule: Intercellular Adhesion Molecule-1
Chain: A, B
Fragment: N-Terminal 190 Residue Domain
Synonym: Icam-1
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Ic1-P191
Expression_system: Cricetulus Griseus
Expression_system_common: Chinese Hamster
Expression_system_taxid: 10029
Expression_system_cell_line: Cho
Expression_system_cellular_location: Extracellular
Expression_system_vector_type: Glutamine Synthetase
Expression_system_plasmid: Pbj5-Gs
symmetry Space Group: P 1 2 1
R_factor 0.222 R_Free 0.279
length a length b length c angle alpha angle beta angle gamma
88.000 42.200 93.000 90.00 109.30 90.00
method X-Ray Diffractionresolution 3.00 Å
ligand NAG, NDG enzyme
related structures by homologous chain: 1IAM
A, B

Primary referenceA dimeric crystal structure for the N-terminal two domains of intercellular adhesion molecule-1., Casasnovas JM, Stehle T, Liu JH, Wang JH, Springer TA, Proc Natl Acad Sci U S A 1998 Apr 14;95(8):4134-9. PMID:9539702
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (69 Kb) [Save to disk]
  • Biological Unit Coordinates (1ic1.pdb1.gz) 63 Kb
  • Biological Unit Coordinates (1ic1.pdb2.gz) 64 Kb
  • LPC: Ligand-Protein Contacts for 1IC1
  • CSU: Contacts of Structural Units for 1IC1
  • Likely Quarternary Molecular Structure file(s) for 1IC1
  • Structure Factors (85 Kb)
  • Retrieve 1IC1 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1IC1 from S2C, [Save to disk]
  • Re-refined 1ic1 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1IC1 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 1IC1
  • 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 1IC1, from MSDmotif at EBI
  • Genome occurence of 1IC1's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ic1a2, region A:1-82 [Jmol] [rasmolscript] [script source]
        - Domain d1ic1a1, region A:83-190 [Jmol] [rasmolscript] [script source]
        - Domain d1ic1b2, region B:1-82 [Jmol] [rasmolscript] [script source]
        - Domain d1ic1b1, region B:83-190 [Jmol] [rasmolscript] [script source]
        - Domain d1v1ic1, region C:319-391 [Jmol] [rasmolscript] [script source]
        - Domain d1w1ic1, region C:39-508 [Jmol] [rasmolscript] [script source]
        - Domain d1u1ic1, region C:801-1027,C:1133-1192 [Jmol] [rasmolscript] [script source]
        - Domain d1n1ic1, region C:9-51 [Jmol] [rasmolscript] [script source]
  • Fold representative 1ic1 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: [1ic1_B] [1ic1_A] [1ic1]
  • SWISS-PROT database: [P05362]
  • Domain organization of [ICAM1_HUMAN] by SWISSPFAM
  • Other resources with information on 1IC1
  • Community annotation for 1IC1 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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