2BC4	Immune System	date	Oct 18, 2005
title	Crystal Structure Of Hla-Dm
authors	M.J.Nicholson, B.Moradi, N.P.Seth, X.Xing, G.D.Cuny, R.L.Stein, K.W.Wucherpfennig
compound		source
Molecule: Hla Class II Histocompatibility Antigen, Dm Alpha Chain: A, C Synonym: Mhc Class II Antigen Dma Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hla-Dma, Dma, Ring6 Expression_system: Drosophila Melanogaster Expression_system_common: Fruit Fly Expression_system_taxid: 7227 Expression_system_vector_type: Stable Transfection Plasmid Expression_system_plasmid: Prmha-3
Molecule: Hla Class II Histocompatibility Antigen, Dm Beta Chain: B, D Synonym: Mhc Class II Antigen Dmb Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hla-Dmb, Dmb, Ring7 Expression_system: Drosophila Melanogaster Expression_system_common: Fruit Fly Expression_system_taxid: 7227 Expression_system_vector_type: Stable Transfection Plasmid Expression_system_plasmid: Prmha-3
symmetry	Space Group: P 21 21 21	R_factor 0.229 R_Free 0.268
crystal cell	length a length b length c angle alpha angle beta angle gamma 98.068 108.420 110.207 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.27 Å
ligand	BMA, CL, NAG, NDG	enzyme
Gene Ontology	Chain Function Process Component A, C D, B
Primary reference	Small molecules that enhance the catalytic efficiency of HLA-DM., Nicholson MJ, Moradi B, Seth NP, Xing X, Cuny GD, Stein RL, Wucherpfennig KW, J Immunol. 2006 Apr 1;176(7):4208-20. PMID:16547258

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (139 Kb) [Save to disk] Biological Unit Coordinates (2bc4.pdb1.gz) 67 Kb Biological Unit Coordinates (2bc4.pdb2.gz) 69 Kb Biological Unit Coordinates (2bc4.pdb3.gz) 132 Kb LPC: Ligand-Protein Contacts for 2BC4 CSU: Contacts of Structural Units for 2BC4 Likely Quarternary Molecular Structure file(s) for 2BC4 Structure Factors (491 Kb) Retrieve 2BC4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2BC4 from S2C, [Save to disk] Re-refined 2bc4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2BC4 in 3D

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Visual 3D analysis of 2BC4

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 3D motif for 2BC4, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2bc4_D] [2bc4_A] [2bc4_C] [2bc4] [2bc4_B] SWISS-PROT database: [P28068] Domain organization of [DMB_HUMAN] by SWISSPFAM Domains found in 2BC4: [IGc1] [MHC_II_alpha] [MHC_II_beta ] by SMART

Other resources with information on 2BC4

Community annotation for 2BC4 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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