1A9B	Complex (Mhc Class I Peptide)	date	Apr 03, 1998
title	Decamer-Like Conformation Of A Nano-Peptide Bound To Hla-B35 Nonstandard Positioning Of The C-Terminus
authors	R.Menssen, P.Orth, A.Ziegler, W.Saenger
compound		source
Molecule: Hla Class I Histocompatibility Antigen, B-35 B35 Chain); Chain: A, D Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Beta-2-Microglobulin Chain: B, E Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Peptide Lpplditpy Chain: C, F Engineered: Yes Other_details: Peptide From Ebna3c-Protein From Ebv
symmetry	Space Group: P 21 21 21	R_factor 0.251 R_Free 0.305
crystal cell	length a length b length c angle alpha angle beta angle gamma 45.740 116.390 169.340 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.20 Å
Gene Ontology	Chain Function Process Component E, B cellular response to iron io...
Primary reference	Decamer-like conformation of a nona-peptide bound to HLA-B*3501 due to non-standard positioning of the C terminus., Menssen R, Orth P, Ziegler A, Saenger W, J Mol Biol 1999 Jan 15;285(2):645-53. PMID:9878435

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (113 Kb) [Save to disk] Biological Unit Coordinates (1a9b.pdb1.gz) 55 Kb Biological Unit Coordinates (1a9b.pdb2.gz) 56 Kb CSU: Contacts of Structural Units for 1A9B Likely Quarternary Molecular Structure file(s) for 1A9B Structure Factors (107 Kb) Retrieve 1A9B in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1A9B from S2C, [Save to disk] Re-refined 1a9b structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1A9B 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 1A9B

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 1A9B, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1a9ba2, region A:1-181 [Jmol] [rasmolscript] [script source]     - Domain d1a9ba1, region A:182-277 [Jmol] [rasmolscript] [script source]     - Domain d1a9bb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1a9bd2, region D:1-181 [Jmol] [rasmolscript] [script source]     - Domain d1a9bd1, region D:182-277 [Jmol] [rasmolscript] [script source]     - Domain d1a9be_, region E [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: [1a9b_A] [1a9b_B] [1a9b_C] [1a9b_F] [1a9b_D] [1a9b_E] [1a9b] SWISS-PROT database: [P30685] [P61769] Domain organization of [1B35_HUMAN] [B2MG_HUMAN] by SWISSPFAM Domain found in 1A9B: [IGc1 ] by SMART

Other resources with information on 1A9B

Community annotation for 1A9B at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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