3K8Y Oncoprotein date Oct 15, 2009
title Allosteric Modulation Of H-Ras Gtpase
authors G.Holzapfel, G.Buhrman, C.Mattos
compound source
Molecule: Gtpase Hras
Chain: A
Fragment: Unp Residues 1-166
Synonym: Transforming Protein P21, P21ras, H-Ras-1, C-H-Ras Gtpase Hras, N-Terminally Processed;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Hras, Hras1
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet21
symmetry Space Group: H 3 2
R_factor 0.200 R_Free 0.227
length a length b length c angle alpha angle beta angle gamma
88.475 88.475 134.906 90.00 90.00 120.00
method X-Ray Diffractionresolution 1.30 Å
ligand ACT, CA, GNP, MG enzyme

Primary referenceAllosteric modulation of Ras positions Q61 for a direct role in catalysis., Buhrman G, Holzapfel G, Fetics S, Mattos C, Proc Natl Acad Sci U S A. 2010 Mar 16;107(11):4931-6. Epub 2010 Mar 1. PMID:20194776
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (38 Kb) [Save to disk]
  • Biological Unit Coordinates (3k8y.pdb1.gz) 32 Kb
  • LPC: Ligand-Protein Contacts for 3K8Y
  • CSU: Contacts of Structural Units for 3K8Y
  • Structure Factors (826 Kb)
  • Retrieve 3K8Y in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3K8Y from S2C, [Save to disk]
  • Re-refined 3k8y structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3K8Y 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 3K8Y
  • 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 3K8Y, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3k8y] [3k8y_A]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Domain found in 3K8Y: [RAS ] by SMART
  • Other resources with information on 3K8Y
  • Community annotation for 3K8Y at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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