1IAK Histocompatibility Antigen I-Ak date Nov 18, 1997
title Histocompatibility Antigen I-Ak
authors D.H.Fremont, E.R.Unanue, W.A.Hendrickson
compound source
Molecule: Mhc Class II I-Ak
Chain: A
Engineered: Yes
Other_details: With Covalently Bound Hel Peptide
Organism_scientific: Mus Musculus
Organism_common: House Mouse
Organism_taxid: 10090
Cell_line: Cho
Organ: Egg
Expression_system: Cho Cells As Gpi-Linked Protein

Molecule: Mhc Class II I-Ak
Chain: B
Engineered: Yes
Other_details: With Covalently Bound Hel Peptide

Organism_scientific: Mus Musculus
Organism_common: House Mouse
Organism_taxid: 10090
Cell_line: Cho
Organ: Egg
Expression_system: Cho Cells As Gpi-Linked Protein

Molecule: Mhc Class II I-Ak
Chain: P
Engineered: Yes
Other_details: With Covalently Bound Hel Peptide

Organism_scientific: Mus Musculus
Organism_common: House Mouse
Organism_taxid: 10090
Expression_system: Cho Cells As Gpi-Linked Protein
symmetry Space Group: P 41 21 2
R_factor 0.214 R_Free 0.263
crystal
cell
length a length b length c angle alpha angle beta angle gamma
112.250 112.250 99.720 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.90 Å
ligand NAG enzyme
note 1IAK is a representative structure
related structures by homologous chain: 1FNG, 1MUJ, 1UVQ
Gene
Ontology
ChainFunctionProcessComponent
A


B


Primary referenceCrystal structure of I-Ak in complex with a dominant epitope of lysozyme., Fremont DH, Monnaie D, Nelson CA, Hendrickson WA, Unanue ER, Immunity 1998 Mar;8(3):305-17. PMID:9529148
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (76 Kb) [Save to disk]
  • Biological Unit Coordinates (1iak.pdb1.gz) 71 Kb
  • LPC: Ligand-Protein Contacts for 1IAK
  • CSU: Contacts of Structural Units for 1IAK
  • Likely Quarternary Molecular Structure file(s) for 1IAK
  • Retrieve 1IAK in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1IAK from S2C, [Save to disk]
  • View 1IAK 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 1IAK
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1IAK, from MSDmotif at EBI
  • Genome occurence of 1IAK's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1iaka2, region A:1-81 [Jmol] [rasmolscript] [script source]
        - Domain d1iaka1, region A:82-181 [Jmol] [rasmolscript] [script source]
        - Domain d1iakb2, region B:5-92 [Jmol] [rasmolscript] [script source]
        - Domain d1iakb1, region B:93-190 [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: [1iak_B] [1iak] [1iak_P] [1iak_A]
  • SWISS-PROT database: [P01910] [P06343]
  • Domain organization of [HA2K_MOUSE] [HB2K_MOUSE] by SWISSPFAM
  • Domains found in 1IAK: [IGc1] [MHC_II_alpha] [MHC_II_beta ] by SMART
  • Other resources with information on 1IAK
  • Community annotation for 1IAK at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Domain movements in 1IAK from the Database of Macromolecular Movements.
  • Images from IMB Jena Image Library of Biological Macromolecules.

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