2GTP	Signaling Protein	date	Apr 28, 2006
title	Crystal Structure Of The Heterodimeric Complex Of Human Rgs1 Activated Gi Alpha 1
authors	M.Soundararajan, A.P.Turnbull, E.Ugochukwu, F.Gorrec, F.Von Delf J.Weigelt, A.Edwards, C.Arrowsmith, M.Sundstrom, D.A.Doyle, Stru Genomics Consortium (Sgc)
compound		source
Molecule: Guanine Nucleotide-Binding Protein G(I), Alpha-1 Chain: A, B Synonym: Adenylate Cyclase-Inhibiting G Alpha Protein Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Gnai1 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3)R3 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pnic28-Bsa4
Molecule: Regulator Of G-Protein Signaling 1 Chain: C, D Synonym: Rgs1, Early Response Protein 1r20, B-Cell Activati Bl34; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Rgs1 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3)R3 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pnic28-Bsa4
symmetry	Space Group: P 21 21 21	R_factor 0.226 R_Free 0.276
crystal cell	length a length b length c angle alpha angle beta angle gamma 90.451 102.904 128.761 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.55 Å
ligand	ALF, GDP, MG	enzyme
Gene Ontology	Chain Function Process Component A, B D, C
Primary reference	Structural diversity in the RGS domain and its interaction with heterotrimeric G protein alpha-subunits., Soundararajan M, Willard FS, Kimple AJ, Turnbull AP, Ball LJ, Schoch GA, Gileadi C, Fedorov OY, Dowler EF, Higman VA, Hutsell SQ, Sundstrom M, Doyle DA, Siderovski DP, Proc Natl Acad Sci U S A. 2008 Apr 29;105(17):6457-62. Epub 2008 Apr 23. PMID:18434541

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (149 Kb) [Save to disk] Biological Unit Coordinates (2gtp.pdb1.gz) 71 Kb Biological Unit Coordinates (2gtp.pdb2.gz) 73 Kb LPC: Ligand-Protein Contacts for 2GTP CSU: Contacts of Structural Units for 2GTP Likely Quarternary Molecular Structure file(s) for 2GTP Structure Factors (301 Kb) Retrieve 2GTP in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2GTP from S2C, [Save to disk] Re-refined 2gtp structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2GTP 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 2GTP

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 2GTP, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2gtp_C] [2gtp_A] [2gtp_B] [2gtp_D] [2gtp] SWISS-PROT database: [P63096] [Q08116] Domain organization of [GNAI1_HUMAN] [RGS1_HUMAN] by SWISSPFAM Domains found in 2GTP: [G_alpha] [RGS ] by SMART

Other resources with information on 2GTP

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

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