1K5N	Immune System	date	Oct 11, 2001
title	Hla-B2709 Bound To Nona-Peptide M9
authors	M.Hulsmeyer, R.C.Hillig, A.Volz, M.Ruhl, W.Schroder, W.Saenger, A. B.Uchanska-Ziegler
compound		source
Molecule: Major Histocompatibility Complex Molecule Hla-B2 Chain: A Fragment: Hla-B2709 Heavy Chain, Extracellular Domain Synonym: Lymphocyte Antigen Hla-B27 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hla-B Or Hlab Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Beta-2-Microglobulin, Light Chain Chain: B Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: B2m Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Nonameric Model Peptide M9 Chain: C Engineered: Yes		Synthetic: Yes Other_details: This Peptide Was Chemically Synthesised.
symmetry	Space Group: P 21 21 21	R_factor 0.123 R_Free 0.148
crystal cell	length a length b length c angle alpha angle beta angle gamma 50.845 82.484 110.708 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.09 Å
ligand	GOL	enzyme
note	1K5N is a representative structure
related structures	by homologous chain: 1LK2
Gene Ontology	Chain Function Process Component B cellular response to iron io...
Primary reference	HLA-B27 subtypes differentially associated with disease exhibit subtle structural alterations., Hulsmeyer M, Hillig RC, Volz A, Ruhl M, Schroder W, Saenger W, Ziegler A, Uchanska-Ziegler B, J Biol Chem 2002 Dec 6;277(49):47844-53. PMID:12244049

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (175 Kb) [Save to disk] Biological Unit Coordinates (1k5n.pdb1.gz) 169 Kb LPC: Ligand-Protein Contacts for 1K5N CSU: Contacts of Structural Units for 1K5N Likely Quarternary Molecular Structure file(s) for 1K5N Structure Factors (1499 Kb) Retrieve 1K5N in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1K5N from S2C, [Save to disk] Re-refined 1k5n structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1K5N 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 1K5N

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1K5N 1K5NA 1K5NB 1K5NC from the CEP Server. Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1K5N, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1k5na2, region A:1-181 [Jmol] [rasmolscript] [script source]     - Domain d1k5na1, region A:182-276 [Jmol] [rasmolscript] [script source]     - Domain d1k5nb_, 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: [1k5n] [1k5n_C] [1k5n_B] [1k5n_A] SWISS-PROT database: [P03989] [P61769] Domain organization of [1B27_HUMAN] [B2MG_HUMAN] by SWISSPFAM Domain found in 1K5N: [IGc1 ] by SMART

Other resources with information on 1K5N

Community annotation for 1K5N at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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