1TN6

Protein Farnesyltransferase Complexed with a Rap2a Peptide Substrate and a FPP Analog at 1.8A Resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.179 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 2.0 of the entry. See complete history


Literature

Crystallographic analysis of CaaX prenyltransferases complexed with substrates defines rules of protein substrate selectivity

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

(2004) J Mol Biol 343: 417-433

  • DOI: 10.1016/j.jmb.2004.08.056
  • Primary Citation of Related Structures:  
    1TNB, 1TN8, 1TN7, 1TN6, 1TNO, 1TNZ, 1TNY, 1TNU

  • PubMed Abstract: 
  • Post-translational modifications are essential for the proper function of many proteins in the cell. The attachment of an isoprenoid lipid (a process termed prenylation) by protein farnesyltransferase (FTase) or geranylgeranyltransferase type I (GGTase-I) is essential for the function of many signal transduction proteins involved in growth, differentiation, and oncogenesis ...

    Post-translational modifications are essential for the proper function of many proteins in the cell. The attachment of an isoprenoid lipid (a process termed prenylation) by protein farnesyltransferase (FTase) or geranylgeranyltransferase type I (GGTase-I) is essential for the function of many signal transduction proteins involved in growth, differentiation, and oncogenesis. FTase and GGTase-I (also called the CaaX prenyltransferases) recognize protein substrates with a C-terminal tetrapeptide recognition motif called the Ca1a2X box. These enzymes possess distinct but overlapping protein substrate specificity that is determined primarily by the sequence identity of the Ca1a2X motif. To determine how the identity of the Ca1a2X motif residues and sequence upstream of this motif affect substrate binding, we have solved crystal structures of FTase and GGTase-I complexed with a total of eight cognate and cross-reactive substrate peptides, including those derived from the C termini of the oncoproteins K-Ras4B, H-Ras and TC21. These structures suggest that all peptide substrates adopt a common binding mode in the FTase and GGTase-I active site. Unexpectedly, while the X residue of the Ca1a2X motif binds in the same location for all GGTase-I substrates, the X residue of FTase substrates can bind in one of two different sites. Together, these structures outline a series of rules that govern substrate peptide selectivity; these rules were utilized to classify known protein substrates of CaaX prenyltransferases and to generate a list of hypothetical substrates within the human genome.


    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein farnesyltransferase alpha subunitA382Homo sapiensMutation(s): 0 
Gene Names: FNTA
EC: 2.5.1.58 (PDB Primary Data), 2.5.1.59 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P49354 (Homo sapiens)
Explore P49354 
Go to UniProtKB:  P49354
PHAROS:  P49354
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Protein farnesyltransferase beta subunitB437Homo sapiensMutation(s): 0 
Gene Names: FNTB
EC: 2.5.1.58
UniProt & NIH Common Fund Data Resources
Find proteins for P49356 (Homo sapiens)
Explore P49356 
Go to UniProtKB:  P49356
Protein Feature View
Expand
  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
peptide derived from the C-terminus of Rap2aC11N/AMutation(s): 0 
Protein Feature View
Expand
  • Reference Sequence
Oligosaccharides

Help

Entity ID: 4
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
beta-D-fructofuranose-(2-1)-alpha-D-glucopyranoseD2N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G05551OP
GlyCosmos:  G05551OP
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FII (Subject of Investigation/LOI)
Query on FII

Download Ideal Coordinates CCD File 
F [auth B][(3,7,11-TRIMETHYL-DODECA-2,6,10-TRIENYLOXYCARBAMOYL)-METHYL]-PHOSPHONIC ACID
C17 H30 N O5 P
JAOBYUCYSAOLHS-XGGJEREUSA-N
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
G [auth B]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
ACY
Query on ACY

Download Ideal Coordinates CCD File 
E [auth A], H [auth B]ACETIC ACID
C2 H4 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-N
 Ligand Interaction
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 4
IDChainsNameType/Class2D Diagram3D Interactions
PRD_900003
Query on PRD_900003
DsucroseOligosaccharide /  Nutrient Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.179 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 178.474α = 90
b = 178.474β = 90
c = 64.697γ = 120
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-11-02
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary