2H6G

W102T Protein Farnesyltransferase Mutant Complexed with a Geranylgeranylated DDPTASACVLS Peptide Product at 1.85A Resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Conversion of protein farnesyltransferase to a geranylgeranyltransferase.

Terry, K.L.Casey, P.J.Beese, L.S.

(2006) Biochemistry 45: 9746-9755

  • DOI: 10.1021/bi060295e
  • Primary Citation of Related Structures:  2H6F, 2H6H, 2H6I

  • PubMed Abstract: 
  • Posttranslational modifications are essential for the proper function of a number of proteins in the cell. One such modification, the covalent attachment of a single isoprenoid lipid (prenylation), is carried out by the CaaX prenyltransferases, prote ...

    Posttranslational modifications are essential for the proper function of a number of proteins in the cell. One such modification, the covalent attachment of a single isoprenoid lipid (prenylation), is carried out by the CaaX prenyltransferases, protein farnesyltransferase (FTase) and protein geranylgeranyltransferase type-I (GGTase-I). Substrate proteins of these two enzymes are involved in a variety of cellular functions but are largely associated with signal transduction. These modified proteins include members of the Ras superfamily, heterotrimeric G-proteins, centromeric proteins, and a number of proteins involved in nuclear integrity. Although FTase and GGTase-I are highly homologous, they are quite selective for their substrates, particularly for their isoprenoid diphosphate substrates, FPP and GGPP, respectively. Here, we present both crystallographic and kinetic analyses of mutants designed to explore this isoprenoid specificity and demonstrate that this specificity is dependent upon two enzyme residues in the beta subunits of the enzymes, W102beta and Y365beta in FTase (T49beta and F324beta, respectively, in GGTase-I).


    Organizational Affiliation

    Department of Biochemistry, Duke University Medical Center, Durham, North Carolina 27710, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein farnesyltransferase/geranylgeranyltransferase type I alpha subunit
A
382Homo sapiensGene Names: FNTA
EC: 2.5.1.58, 2.5.1.59
Find proteins for P49354 (Homo sapiens)
Go to Gene View: FNTA
Go to UniProtKB:  P49354
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Protein farnesyltransferase beta subunit
B
437Homo sapiensGene Names: FNTB
EC: 2.5.1.58
Find proteins for P49356 (Homo sapiens)
Go to Gene View: FNTB
Go to UniProtKB:  P49356
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
farnesylated peptide
P
11N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SUC
Query on SUC

Download SDF File 
Download CCD File 
B
SUCROSE
C12 H22 O11
CZMRCDWAGMRECN-UGDNZRGBSA-N
 Ligand Interaction
ZN
Query on ZN

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Download CCD File 
B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
GER
Query on GER

Download SDF File 
Download CCD File 
P
GERAN-8-YL GERAN
C20 H34
HSOYJGBJQAKCNA-CAIKYXSQSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.187 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 178.535α = 90.00
b = 178.535β = 90.00
c = 64.601γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
CNSphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-08-29
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance