5XK3

Crystal structure of apo form Isosesquilavandulyl Diphosphate Synthase from Streptomyces sp. strain CNH-189


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.996 Å
  • R-Value Free: 0.200 
  • R-Value Work: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

"Head-to-Middle" and "Head-to-Tail" cis-Prenyl Transferases: Structure of Isosesquilavandulyl Diphosphate Synthase.

Gao, J.Ko, T.P.Chen, L.Malwal, S.R.Zhang, J.Hu, X.Qu, F.Liu, W.Huang, J.W.Cheng, Y.S.Chen, C.C.Yang, Y.Zhang, Y.Oldfield, E.Guo, R.T.

(2018) Angew. Chem. Int. Ed. Engl. 57: 683-687

  • DOI: 10.1002/anie.201710185
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • We report the first X-ray crystallographic structure of the "head-to-middle" prenyltransferase, isosesquilavandulyl diphosphate synthase, involved in biosynthesis of the merochlorin class of antibiotics. The protein adopts the ζ or cis-prenyl transfe ...

    We report the first X-ray crystallographic structure of the "head-to-middle" prenyltransferase, isosesquilavandulyl diphosphate synthase, involved in biosynthesis of the merochlorin class of antibiotics. The protein adopts the ζ or cis-prenyl transferase fold but remarkably, unlike tuberculosinol adenosine synthase and other cis-prenyl transferases (e.g. cis-farnesyl, decaprenyl, undecaprenyl diphosphate synthases), the large, hydrophobic side chain does not occupy a central hydrophobic tunnel. Instead, it occupies a surface pocket oriented at 90° to the hydrophobic tunnel. Product chain-length control is achieved by squeezing out the ligand from the conventional allylic S1 binding site, with proton abstraction being achieved using a diphosphate-Asn-Ser relay. The structures revise and unify our thinking as to the mechanism of action of many other prenyl transferases and may also be of use in engineering new merochlorin-class antibiotics.


    Organizational Affiliation

    Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Undecaprenyl diphosphate synthase
A, B, C, D
232Streptomyces sp. CNH189Mutation(s): 0 
Gene Names: mcl22
Find proteins for M4T4U9 (Streptomyces sp. CNH189)
Go to UniProtKB:  M4T4U9
Small Molecules
Ligands 1 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
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.996 Å
  • R-Value Free: 0.200 
  • R-Value Work: 0.169 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 68.115α = 90.00
b = 121.198β = 90.00
c = 126.527γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
BALBESphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-01-10
    Type: Initial release
  • Version 1.1: 2018-01-17
    Type: Database references
  • Version 1.2: 2018-01-24
    Type: Database references