1DLH	Histocompatibility Antigen	date	Feb 15, 1994
title	Crystal Structure Of The Human Class II Mhc Protein Hla-Dr1 With An Influenza Virus Peptide
authors	L.J.Stern
compound		source
Molecule: Class II Histocompatibility Antigen (Hla-Dr1) (Al Chain); Chain: A, D Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Spodoptera Expression_system_common: Moths Expression_system_taxid: 7106
Molecule: Class II Histocompatibility Antigen (Hla-Dr1) (Be Chain: B, E Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Spodoptera Expression_system_common: Moths Expression_system_taxid: 7106
Molecule: Enterotoxin Type B Precursor Chain: C, F Engineered: Yes
symmetry	Space Group: P 43 21 2	R_factor 0.205 R_Free 0.304
crystal cell	length a length b length c angle alpha angle beta angle gamma 94.600 94.600 247.500 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand	NAG, NDG	enzyme
note	1DLH (Molecule of the Month:pdb62)
related structures	by homologous chain: 1A6A, 1KT2
Primary reference	Crystal structure of the human class II MHC protein HLA-DR1 complexed with an influenza virus peptide., Stern LJ, Brown JH, Jardetzky TS, Gorga JC, Urban RG, Strominger JL, Wiley DC, Nature 1994 Mar 17;368(6468):215-21. PMID:8145819

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (140 Kb) [Save to disk] Biological Unit Coordinates (1dlh.pdb1.gz) 133 Kb LPC: Ligand-Protein Contacts for 1DLH CSU: Contacts of Structural Units for 1DLH Likely Quarternary Molecular Structure file(s) for 1DLH Retrieve 1DLH in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1DLH from S2C, [Save to disk]

View 1DLH 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 1DLH

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 1DLH, from MSDmotif at EBI Genome occurence of 1DLH's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1dlha2, region A:3-81 [Jmol] [rasmolscript] [script source]     - Domain d1dlha1, region A:82-182 [Jmol] [rasmolscript] [script source]     - Domain d1dlhb2, region B:3-92 [Jmol] [rasmolscript] [script source]     - Domain d1dlhb1, region B:93-190 [Jmol] [rasmolscript] [script source]     - Domain d1dlhd2, region D:3-81 [Jmol] [rasmolscript] [script source]     - Domain d1dlhd1, region D:82-182 [Jmol] [rasmolscript] [script source]     - Domain d1dlhe2, region E:3-92 [Jmol] [rasmolscript] [script source]     - Domain d1dlhe1, region E:93-190 [Jmol] [rasmolscript] [script source] Fold representative 1dlh 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: [1dlh_A] [1dlh_B] [1dlh_C] [1dlh_D] [1dlh_E] [1dlh_F] SWISS-PROT database: [P04229] [P01903] [P04664] Domain organization of [2B11_HUMAN] [DRA_HUMAN] [HEMA_I69A0] by SWISSPFAM Domains found in 1DLH: [IGc1] [MHC_II_alpha] [MHC_II_beta ] by SMART Alignments of the sequence of 1DLH with the sequences similar proteins can be viewed for 1DLH's classification [2B11_HUMAN] [DRA_HUMAN] [HEMA_I69A0] 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 [2B11_HUMAN] [DRA_HUMAN] [HEMA_I69A0] at ProtoMap. Click on the Cluster number.

Other resources with information on 1DLH

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

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