1IAQ	Signaling Protein	date	Mar 23, 2001
title	C-H-Ras P21 Protein Mutant With Thr 35 Replaced By Ser (T35s Complexed With Guanosine-5'-[B,G-Imido] Triphosphate
authors	M.Spoerner, C.Herrmann, I.R.Vetter, H.R.Kalbitzer, A.Wittinghofe
compound		source
Molecule: Transforming Protein P21h-Ras-1 Chain: A, B, C Fragment: Catalytic Domain (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 Expression_system_taxid: 562 Expression_system_strain: Ck600k Expression_system_vector_type: Plasmid Expression_system_plasmid: Ptac
symmetry	Space Group: P 21 21 21	R_factor 0.242 R_Free 0.282
crystal cell	length a length b length c angle alpha angle beta angle gamma 63.890 79.060 94.040 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.90 Å
ligand	GNP, MG	enzyme
related structures	by homologous chain: 1HE8, 1PLK
Gene Ontology	Chain Function Process Component A, C, B
Primary reference	Dynamic properties of the Ras switch I region and its importance for binding to effectors., Spoerner M, Herrmann C, Vetter IR, Kalbitzer HR, Wittinghofer A, Proc Natl Acad Sci U S A 2001 Apr 24;98(9):4944-9. PMID:11320243

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (80 Kb) [Save to disk] Biological Unit Coordinates (1iaq.pdb1.gz) 26 Kb Biological Unit Coordinates (1iaq.pdb2.gz) 26 Kb Biological Unit Coordinates (1iaq.pdb3.gz) 27 Kb LPC: Ligand-Protein Contacts for 1IAQ CSU: Contacts of Structural Units for 1IAQ Likely Quarternary Molecular Structure file(s) for 1IAQ Structure Factors (110 Kb) Retrieve 1IAQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1IAQ from S2C, [Save to disk] Re-refined 1iaq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1IAQ 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 1IAQ

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 1IAQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1iaqa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1iaqb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1iaqc_, region C [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: [1iaq] [1iaq_B] [1iaq_C] [1iaq_A] SWISS-PROT database: [P01112] Domain organization of [RASH_HUMAN] by SWISSPFAM Domain found in 1IAQ: [RAS ] by SMART

Other resources with information on 1IAQ

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

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