1CTQ

STRUCTURE OF P21RAS IN COMPLEX WITH GPPNHP AT 100 K


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.26 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.172 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

The pre-hydrolysis state of p21(ras) in complex with GTP: new insights into the role of water molecules in the GTP hydrolysis reaction of ras-like proteins.

Scheidig, A.J.Burmester, C.Goody, R.S.

(1999) Structure 7: 1311-1324

  • DOI: 10.1016/s0969-2126(00)80021-0
  • Primary Citation of Related Structures:  
    1CTQ, 1QRA

  • PubMed Abstract: 
  • In numerous biological events the hydrolysis of guanine triphosphate (GTP) is a trigger to switch from the active to the inactive protein form. In spite of the availability of several high-resolution crystal structures, the details of the mechanism of nucleotide hydrolysis by GTPases are still unclear ...

    In numerous biological events the hydrolysis of guanine triphosphate (GTP) is a trigger to switch from the active to the inactive protein form. In spite of the availability of several high-resolution crystal structures, the details of the mechanism of nucleotide hydrolysis by GTPases are still unclear. This is partly because the structures of the proteins in their active states had to be determined in the presence of non-hydrolyzable GTP analogues (e.g. GppNHp). Knowledge of the structure of the true Michaelis complex might provide additional insights into the intrinsic protein hydrolysis mechanism of GTP and related nucleotides.


    Organizational Affiliation

    Abteilung für Physikalische Biochemie, Max-Planck Institute for Molecular Physiology, Dortmund, 44227, Germany. scheidig@mpi-dortmund.mpg.de



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (TRANSFORMING PROTEIN P21/H-RAS-1)A166Homo sapiensMutation(s): 0 
Gene Names: HRASHRAS1
EC: 3.6.5.2
Find proteins for P01112 (Homo sapiens)
Explore P01112 
Go to UniProtKB:  P01112
NIH Common Fund Data Resources
PHAROS:  P01112
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GNP
Query on GNP

Download Ideal Coordinates CCD File 
C [auth A]PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
C10 H17 N6 O13 P3
UQABYHGXWYXDTK-UUOKFMHZSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
B [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.26 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.172 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.67α = 90
b = 39.67β = 90
c = 158.409γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
SHELXL-97refinement
FRAMBOdata collection
XDSdata scaling
XSCALEdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-11-15
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Advisory, Refinement description
  • Version 1.4: 2018-01-31
    Changes: Experimental preparation