1NVX	Signaling Protein	date	Feb 04, 2003
title	Structural Evidence For Feedback Activation By Rasgtp Of The Specific Nucleotide Exchange Factor Sos
authors	S.M.Margarit, H.Sondermann, B.E.Hall, B.Nagar, A.Hoelz, M.Pirrucc D.Bar-Sagi, J.Kuriyan
compound		source
Molecule: Transforming Protein P21h-Ras-1 Chain: Q, R Fragment: Residues 1-166 Synonym: C-H-Ras Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hras Or Hras1 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: P-Proexht
Molecule: Son Of Sevenless Protein Homolog 1 Chain: S Fragment: Residues 566-10466, Including The Ras Guanine Nuc Exchange Factor Fragment; Synonym: Sos-1 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Sos1 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: P-Proexht
symmetry	Space Group: I 4 2 2	R_factor 0.223 R_Free 0.261
crystal cell	length a length b length c angle alpha angle beta angle gamma 175.206 175.206 234.128 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.20 Å
ligand	GTP, MG, PO4	enzyme
Gene Ontology	Chain Function Process Component Q, R S
Primary reference	Structural evidence for feedback activation by Ras.GTP of the Ras-specific nucleotide exchange factor SOS., Margarit SM, Sondermann H, Hall BE, Nagar B, Hoelz A, Pirruccello M, Bar-Sagi D, Kuriyan J, Cell 2003 Mar 7;112(5):685-95. PMID:12628188

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (133 Kb) [Save to disk] Biological Unit Coordinates (1nvx.pdb1.gz) 128 Kb LPC: Ligand-Protein Contacts for 1NVX CSU: Contacts of Structural Units for 1NVX Likely Quarternary Molecular Structure file(s) for 1NVX Structure Factors (393 Kb) Retrieve 1NVX in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NVX from S2C, [Save to disk] Re-refined 1nvx structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1NVX 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 1NVX

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 1NVX, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1nvxq_, region Q [Jmol] [rasmolscript] [script source]     - Domain d1nvxr_, region R [Jmol] [rasmolscript] [script source]     - Domain d1nvxs_, region S [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: [1nvx_R] [1nvx_Q] [1nvx] [1nvx_S] SWISS-PROT database: [P01112] [Q07889] Domain organization of [RASH_HUMAN] [SOS1_HUMAN] by SWISSPFAM Domains found in 1NVX: [RAS] [RasGEF] [RasGEFN ] by SMART

Other resources with information on 1NVX

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

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