3SMA

A new N-acetyltransferase fold in the structure and mechanism of the phosphonate biosynthetic enzyme FrbF


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

New N-Acetyltransferase Fold in the Structure and Mechanism of the Phosphonate Biosynthetic Enzyme FrbF.

Bae, B.Cobb, R.E.Desieno, M.A.Zhao, H.Nair, S.K.

(2011) J.Biol.Chem. 286: 36132-36141

  • DOI: 10.1074/jbc.M111.263533

  • PubMed Abstract: 
  • The enzyme FrbF from Streptomyces rubellomurinus has attracted significant attention due to its role in the biosynthesis of the antimalarial phosphonate FR-900098. The enzyme catalyzes acetyl transfer onto the hydroxamate of the FR-900098 precursors ...

    The enzyme FrbF from Streptomyces rubellomurinus has attracted significant attention due to its role in the biosynthesis of the antimalarial phosphonate FR-900098. The enzyme catalyzes acetyl transfer onto the hydroxamate of the FR-900098 precursors cytidine 5'-monophosphate-3-aminopropylphosphonate and cytidine 5'-monophosphate-N-hydroxy-3-aminopropylphosphonate. Despite the established function as a bona fide N-acetyltransferase, FrbF shows no sequence similarity to any member of the GCN5-like N-acetyltransferase (GNAT) superfamily. Here, we present the 2.0 Å resolution crystal structure of FrbF in complex with acetyl-CoA, which demonstrates a unique architecture that is distinct from those of canonical GNAT-like acetyltransferases. We also utilized the co-crystal structure to guide structure-function studies that identified the roles of putative active site residues in the acetyltransferase mechanism. The combined biochemical and structural analyses of FrbF provide insights into this previously uncharacterized family of N-acetyltransferases and also provide a molecular framework toward the production of novel N-acyl derivatives of FR-900098.


    Organizational Affiliation

    Department of Biochemistry, Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FrbF
A, B, C, D
286Streptomyces rubellomurinus (strain ATCC 31215)Mutation(s): 0 
Gene Names: frbF
EC: 2.3.1.81
Find proteins for Q0ZQ43 (Streptomyces rubellomurinus (strain ATCC 31215))
Go to UniProtKB:  Q0ZQ43
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACO
Query on ACO

Download SDF File 
Download CCD File 
A, B, C, D
ACETYL COENZYME *A
C23 H38 N7 O17 P3 S
ZSLZBFCDCINBPY-ZSJPKINUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.193 
  • Space Group: P 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 128.832α = 90.00
b = 35.692β = 117.60
c = 136.087γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
MOSFLMdata reduction
HKL-2000data collection
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2011-06-27 
  • Released Date: 2011-08-24 
  • Deposition Author(s): Bae, B., Nair, S.K.

Revision History 

  • Version 1.0: 2011-08-24
    Type: Initial release
  • Version 1.1: 2011-09-07
    Type: Database references
  • Version 1.2: 2011-10-26
    Type: Database references