1H2S	Membrane Protein	date	Aug 15, 2002
title	Molecular Basis Of Transmenbrane Signalling By Sensory Rhodo Transducer Complex
authors	V.I.Gordeliy, J.Labahn, R.Moukhametzianov, R.Efremov, J.Granzin, R.Schlesinger, G.Bueldt, T.Savopol, A.Scheidig, J.P.Klare, M.Eng
compound		source
Molecule: Sensory Rhodopsin II Chain: A Fragment: Residues 1-225 Engineered: Yes Other_details: His-Tag		Organism_scientific: Natronomonas Pharaonis Organism_taxid: 2257 Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_plasmid: Pet27bmod
Molecule: Sensory Rhodopsin II Transducer Chain: B Fragment: Residues 23-82 Synonym: Transducer Htr II Fragment , Htr-II, Methyl-Accept Phototaxis Protein II, Mpp-II; Engineered: Yes Other_details: His-Tag		Organism_scientific: Natronomonas Pharaonis Organism_taxid: 2257 Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_plasmid: Pet27bmod
symmetry	Space Group: P 21 21 2	R_factor 0.226 R_Free 0.258
crystal cell	length a length b length c angle alpha angle beta angle gamma 124.300 46.960 53.840 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.93 Å
ligand	BOG, RET	enzyme
related structures	by homologous chain: 1H68
Gene Ontology	Chain Function Process Component A ion channel activity
Primary reference	Molecular basis of transmembrane signalling by sensory rhodopsin II-transducer complex., Gordeliy VI, Labahn J, Moukhametzianov R, Efremov R, Granzin J, Schlesinger R, Buldt G, Savopol T, Scheidig AJ, Klare JP, Engelhard M, Nature 2002 Oct 3;419(6906):484-7. PMID:12368857

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (48 Kb) [Save to disk] Biological Unit Coordinates (1h2s.pdb1.gz) 85 Kb LPC: Ligand-Protein Contacts for 1H2S CSU: Contacts of Structural Units for 1H2S Likely Quarternary Molecular Structure file(s) for 1H2S Structure Factors (169 Kb) Retrieve 1H2S in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1H2S from S2C, [Save to disk] Re-refined 1h2s structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1H2S 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 1H2S

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 1H2S, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1h2sa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1h2sb_, 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: [1h2s_B] [1h2s] [1h2s_A] SWISS-PROT database: [P42196] [P42259] Belongs to the ion-translocating microbial rhodopsin (mr) family according to TCDB. Domain organization of [BACS2_NATPH] [HTR2_NATPH] by SWISSPFAM Domain found in 1H2S: [Bac_rhodopsin ] by SMART

Other resources with information on 1H2S

Community annotation for 1H2S at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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