1I4F	Immune System	date	Feb 21, 2001
title	Crystal Structure Of Hla-A0201mage-A4-Peptide Complex
authors	R.C.Hillig, P.G.Coulie, V.Stroobant, W.Saenger, A.Ziegler, M.Huel
compound		source
Molecule: Hla Class I Histocompatibility Antigen, A-2 Alpha Chain: A Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hla-A Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Sure
Molecule: Beta-2-Microglobulin Chain: B Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: B2m Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Sure
Molecule: Melanoma-Associated Antigen 4 Chain: C Fragment: Residues 230-239 Synonym: Mage-4 Antigen Engineered: Yes		Synthetic: Yes Other_details: This Peptide Was Chemically Synthesized. The Of The Peptide Is Naturally Found In Homo Sapiens (Humans).
symmetry	Space Group: P 1 21 1	R_factor 0.136 R_Free 0.173
crystal cell	length a length b length c angle alpha angle beta angle gamma 51.467 80.222 54.009 90.00 111.06 90.00
method	X-Ray Diffraction	resolution	1.40 Å
ligand	1PG	enzyme
related structures	by homologous chain: 1LK2, 1OGA
Gene Ontology	Chain Function Process Component B cellular response to iron io...
Primary reference	High-resolution structure of HLA-A*0201 in complex with a tumour-specific antigenic peptide encoded by the MAGE-A4 gene., Hillig RC, Coulie PG, Stroobant V, Saenger W, Ziegler A, Hulsmeyer M, J Mol Biol 2001 Jul 27;310(5):1167-76. PMID:11502003

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (151 Kb) [Save to disk] Biological Unit Coordinates (1i4f.pdb1.gz) 147 Kb LPC: Ligand-Protein Contacts for 1I4F CSU: Contacts of Structural Units for 1I4F Likely Quarternary Molecular Structure file(s) for 1I4F Structure Factors (559 Kb) Retrieve 1I4F in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1I4F from S2C, [Save to disk] Re-refined 1i4f structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1I4F 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 1I4F

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1I4F 1I4FA 1I4FB 1I4FC from the CEP Server. Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1I4F, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1i4fa2, region A:1-181 [Jmol] [rasmolscript] [script source]     - Domain d1i4fa1, region A:182-275 [Jmol] [rasmolscript] [script source]     - Domain d1i4fb_, region B [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: [1i4f] [1i4f_B] [1i4f_C] [1i4f_A] SWISS-PROT database: [P01892] [P61769] [P43358] Domain organization of [1A02_HUMAN] [B2MG_HUMAN] [MAGA4_HUMAN] by SWISSPFAM Domain found in 1I4F: [IGc1 ] by SMART

Other resources with information on 1I4F

Community annotation for 1I4F at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 1I4F from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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