2GTW	Immune System	date	Apr 28, 2006
title	Human Class I Mhc Hla-A2 In Complex With The Nonameric Melan 1(27-35) Peptide Having A27l Substitution
authors	O.Y.Borbulevych, B.M.Baker
compound		source
Molecule: Hla-A0201 Heavy Chain Chain: A, D Fragment: Heavy Chain Synonym: Hla Class I Histocompatibility Antigen, A-2 Alpha Class I Antigen A2; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hla-A Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Phn1
Molecule: Beta-2-Microglobulin Chain: B, E Synonym: Beta-2-Microglobulin Variant Pi 5.3 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: B2m Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Phn1
Molecule: Octapeptide From Melan-Amart-1 Chain: C, F Fragment: Residues 27-35 Synonym: Melanoma Antigen Recognized By T-Cells 1 Engineered: Yes Mutation: Yes		Synthetic: Yes Other_details: Commercial Synthesis For The Peptide
symmetry	Space Group: P 1 21 1	R_factor 0.181 R_Free 0.218
crystal cell	length a length b length c angle alpha angle beta angle gamma 58.309 84.271 84.293 90.00 90.11 90.00
method	X-Ray Diffraction	resolution	1.55 Å
ligand	FMT, GOL, NA	enzyme
Gene Ontology	Chain Function Process Component E, B cellular response to iron io...
Primary reference	Structures of MART-1(26/27-35) Peptide/HLA-A2 Complexes Reveal a Remarkable Disconnect between Antigen Structural Homology and T Cell Recognition., Borbulevych OY, Insaidoo FK, Baxter TK, Powell DJ Jr, Johnson LA, Restifo NP, Baker BM, J Mol Biol. 2007 Oct 5;372(5):1123-36. Epub 2007 Jul 26. PMID:17719062

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (146 Kb) [Save to disk] Biological Unit Coordinates (2gtw.pdb1.gz) 71 Kb Biological Unit Coordinates (2gtw.pdb2.gz) 72 Kb LPC: Ligand-Protein Contacts for 2GTW CSU: Contacts of Structural Units for 2GTW Likely Quarternary Molecular Structure file(s) for 2GTW Structure Factors (1548 Kb) Retrieve 2GTW in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2GTW from S2C, [Save to disk] Re-refined 2gtw structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2GTW 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 2GTW

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 2GTW, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2gtw_B] [2gtw] [2gtw_F] [2gtw_D] [2gtw_A] [2gtw_C] [2gtw_E] SWISS-PROT database: [P01892] [P61769] [Q16655] Domain organization of [1A02_HUMAN] [B2MG_HUMAN] [MAR1_HUMAN] by SWISSPFAM Domain found in 2GTW: [IGc1 ] by SMART

Other resources with information on 2GTW

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

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