1IEB	Histocompatibility Antigen	date	Apr 05, 1996
title	Histocompatibility Antigen
authors	D.H.Fremont, W.A.Hendrickson, P.Marrack, J.Kappler
compound		source
Molecule: Mhc Class II I-Ek Chain: A, C Engineered: Yes Other_details: With Covalently Bound Hsp70 Peptide		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108
Molecule: Mhc Class II I-Ek Chain: B, D Engineered: Yes Other_details: With Covalently Bound Hsp70 Peptide		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108
symmetry	Space Group: P 31 2 1	R_factor 0.222 R_Free 0.321
crystal cell	length a length b length c angle alpha angle beta angle gamma 77.530 77.530 319.480 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.70 Å
ligand	NAG, SO4	enzyme
related structures	by homologous chain: 1JWM, 1SEB
Gene Ontology	Chain Function Process Component A, C D, B
Primary reference	Structures of an MHC class II molecule with covalently bound single peptides., Fremont DH, Hendrickson WA, Marrack P, Kappler J, Science 1996 May 17;272(5264):1001-4. PMID:8638119

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (140 Kb) [Save to disk] Biological Unit Coordinates (1ieb.pdb1.gz) 68 Kb Biological Unit Coordinates (1ieb.pdb2.gz) 68 Kb Biological Unit Coordinates (1ieb.pdb3.gz) 133 Kb LPC: Ligand-Protein Contacts for 1IEB CSU: Contacts of Structural Units for 1IEB Likely Quarternary Molecular Structure file(s) for 1IEB Retrieve 1IEB in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1IEB from S2C, [Save to disk]

View 1IEB 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 1IEB

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1IEB, from MSDmotif at EBI Genome occurence of 1IEB's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ieba2, region A:1-81 [Jmol] [rasmolscript] [script source]     - Domain d1ieba1, region A:82-182 [Jmol] [rasmolscript] [script source]     - Domain d1iebb2, region B:4-92 [Jmol] [rasmolscript] [script source]     - Domain d1iebb1, region B:93-188 [Jmol] [rasmolscript] [script source]     - Domain d1iebc2, region C:1-81 [Jmol] [rasmolscript] [script source]     - Domain d1iebc1, region C:82-182 [Jmol] [rasmolscript] [script source]     - Domain d1iebd2, region D:4-92 [Jmol] [rasmolscript] [script source]     - Domain d1iebd1, region D:93-188 [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: [1ieb_C] [1ieb_A] [1ieb] [1ieb_D] [1ieb_B] SWISS-PROT database: [P01904] [Q31164] Domain organization of [HA21_MOUSE] [Q31164_MOUSE] by SWISSPFAM Domains found in 1IEB: [IGc1] [MHC_II_alpha] [MHC_II_beta ] by SMART

Other resources with information on 1IEB

Community annotation for 1IEB at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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