1Y3A	Signaling Protein	date	Nov 24, 2004
title	Structure Of G-Alpha-I1 Bound To A Gdp-Selective Peptide Pro Insight Into Guanine Nucleotide Exchange
authors	C.A.Johnston, F.S.Willard, M.R.Jezyk, Z.Fredericks, E.T.Bodor, M. R.Blaesius, T.K.Harden, J.Sondek, V.J.Watts, J.K.Ramer, D.P.Side
compound		source
Molecule: Guanine Nucleotide-Binding Protein G(I), Alpha-1 Chain: A, B, C, D Fragment: Sequence Database Residues 25-353 Synonym: Adenylate Cyclase-Inhibiting G Alpha Protein, G-Al Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Gnai1 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Ppro-Exhtb
Molecule: Kb752 Peptide Chain: E, F, G, H Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Ppro-Exhtb Other_details: Protein Selected By Phage Display
symmetry	Space Group: P 1 21 1	R_factor 0.240 R_Free 0.280
crystal cell	length a length b length c angle alpha angle beta angle gamma 72.943 112.785 109.490 90.00 93.75 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	GDP	enzyme
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Structure of Galpha(i1) Bound to a GDP-Selective Peptide Provides Insight into Guanine Nucleotide Exchange., Johnston CA, Willard FS, Jezyk MR, Fredericks Z, Bodor ET, Jones MB, Blaesius R, Watts VJ, Harden TK, Sondek J, Ramer JK, Siderovski DP, Structure (Camb) 2005 Jul;13(7):1069-80. PMID:16004878

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (213 Kb) [Save to disk] Biological Unit Coordinates (1y3a.pdb1.gz) 54 Kb Biological Unit Coordinates (1y3a.pdb2.gz) 55 Kb Biological Unit Coordinates (1y3a.pdb3.gz) 54 Kb Biological Unit Coordinates (1y3a.pdb4.gz) 55 Kb LPC: Ligand-Protein Contacts for 1Y3A CSU: Contacts of Structural Units for 1Y3A Likely Quarternary Molecular Structure file(s) for 1Y3A Structure Factors (764 Kb) Retrieve 1Y3A in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1Y3A from S2C, [Save to disk] Re-refined 1y3a structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1Y3A 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 1Y3A

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 1Y3A, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1y3a_A] [1y3a_B] [1y3a_F] [1y3a_E] [1y3a_D] [1y3a_G] [1y3a] [1y3a_C] [1y3a_H] SWISS-PROT database: [P63096] Domain organization of [GNAI1_HUMAN] by SWISSPFAM Domain found in 1Y3A: [G_alpha ] by SMART

Other resources with information on 1Y3A

Community annotation for 1Y3A at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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