2HLA	Histocompatibility Antigen	date	Oct 05, 1989
title	Specificity Pockets For The Side Chains Of Peptide Antigens In Hla-Aw68
authors	T.P.J.Garrett, M.A.Saper, D.C.Wiley
compound		source
Molecule: Class I Histocompatibility Antigen (Hla-Aw68) Chain: A Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606
Molecule: Beta 2-Microglobulin Chain: B Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606
symmetry	Space Group: P 21 21 21	R_factor 0.173 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 60.000 80.660 113.000 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.60 Å
note	2HLA (Molecule of the Month:pdb62)
related structures	by homologous chain: 1RJZ, 3HLA
Gene Ontology	Chain Function Process Component B protein binding positive regulation of T cel... response to molecule of bact... antigen processing and prese... antigen processing and prese... antigen processing and prese... antigen processing and prese... immune response viral reproduction cytokine-mediated signaling ... T cell differentiation in th... protein refolding response to drug antigen processing and prese... innate immune response response to cadmium ion regulation of defense respon... regulation of immune respons... interferon-gamma-mediated si... Golgi membrane extracellular region extracellular space endoplasmic reticulum lumen plasma membrane external side of plasma memb... ER to Golgi transport vesicl... phagocytic vesicle membrane early endosome membrane early endosome lumen MHC class I protein complex
Primary reference	Specificity pockets for the side chains of peptide antigens in HLA-Aw68., Garrett TP, Saper MA, Bjorkman PJ, Strominger JL, Wiley DC, Nature 1989 Dec 7;342(6250):692-6. PMID:2594067

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (67 Kb) [Save to disk] Biological Unit Coordinates (2hla.pdb1.gz) 63 Kb CSU: Contacts of Structural Units for 2HLA Likely Quarternary Molecular Structure file(s) for 2HLA Retrieve 2HLA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2HLA from S2C, [Save to disk]

View 2HLA 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 2HLA

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 2HLA, from MSDmotif at EBI Genome occurence of 2HLA's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d2hlaa2, region A:1-181 [Jmol] [rasmolscript] [script source]     - Domain d2hlaa1, region A:182-270 [Jmol] [rasmolscript] [script source]     - Domain d2hlab_, region B [Jmol] [rasmolscript] [script source] Fold representative 2hla from FSSP and Dali (Families of Structurally Similar Proteins) 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: [2hla_A] [2hla_B] SWISS-PROT database: [P01891] [P61769] Domain organization of [1A68_HUMAN] [B2MG_HUMAN] by SWISSPFAM Domain found in 2HLA: [IGc1 ] by SMART Alignments of the sequence of 2HLA with the sequences similar proteins can be viewed for 2HLA's classification [1A68_HUMAN] [B2MG_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [1A68_HUMAN] [B2MG_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 2HLA

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

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