3WVQ

Structure of ATP grasp protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.955 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

A peptide ligase and the ribosome cooperate to synthesize the peptide pheganomycin.

Noike, M.Matsui, T.Ooya, K.Sasaki, I.Ohtaki, S.Hamano, Y.Maruyama, C.Ishikawa, J.Satoh, Y.Ito, H.Morita, H.Dairi, T.

(2015) Nat.Chem.Biol. 11: 71-76

  • DOI: 10.1038/nchembio.1697
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Peptide antibiotics are typically biosynthesized by one of two distinct machineries in a ribosome-dependent or ribosome-independent manner. Pheganomycin (PGM (1)) and related analogs consist of the nonproteinogenic amino acid (S)-2-(3,5-dihydroxy-4-h ...

    Peptide antibiotics are typically biosynthesized by one of two distinct machineries in a ribosome-dependent or ribosome-independent manner. Pheganomycin (PGM (1)) and related analogs consist of the nonproteinogenic amino acid (S)-2-(3,5-dihydroxy-4-hydroxymethyl)phenyl-2-guanidinoacetic acid (2) and a proteinogenic core peptide, making their origin uncertain. We report the identification of the biosynthetic gene cluster from Streptomyces cirratus responsible for PGM production. Unexpectedly, the cluster contains a gene encoding multiple precursor peptides along with several genes plausibly encoding enzymes for the synthesis of amino acid 2. We identified PGM1, which has an ATP-grasp domain, as potentially capable of linking the precursor peptides with 2, and validate this hypothesis using deletion mutants and in vitro reconstitution. We document PGM1's substrate permissivity, which could be rationalized by a large binding pocket as confirmed via structural and mutagenesis experiments. This is to our knowledge the first example of cooperative peptide synthesis achieved by ribosomes and peptide ligases using a peptide nucleophile.


    Organizational Affiliation

    Graduate School of Engineering, Hokkaido University, Hokkaido, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PGM1
A, B, C, D
447Streptomyces cirratusMutation(s): 0 
Find proteins for A0A0A6YVN3 (Streptomyces cirratus)
Go to UniProtKB:  A0A0A6YVN3
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, C, D
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
B, C
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.955 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.194 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 77.660α = 73.74
b = 86.750β = 85.93
c = 94.260γ = 68.26
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
XDSdata reduction
SOLVEphasing
PDB_EXTRACTdata extraction
XSCALEdata scaling
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-11-19
    Type: Initial release
  • Version 1.1: 2014-12-31
    Type: Database references