Applications are invited for a Royal Society of New Zealand Marsden Fund PhD 
scholarship at AgResearch and the Institute of Fundamental Sciences, Massey 
University, Palmerston North, New Zealand.

Evolution Of The Archaeal Cell Wall: Structural Biology And Biochemistry Of 
Archaeal Cell Wall Synthetic Enzymes
 
 “The writing is on the wall: Elucidating the deep evolutionary links between 
cell wall synthesis in bacteria and methanogenic archaea”.
 
The project will investigate the early evolution of cell walls in methanogenic 
archaea. Certain methanogenic archaea contain a pseudomurein cell wall, which 
is structurally analogous to bacterial murein (e.g. peptidoglycan), but there 
are important differences in the chemistry between the two polymers. 
Pseudomurein-containing methanogens use only L-amino acids, contain an 
archaeal-specific sugar and use several unusual peptide bonds. Surprisingly, 
genetic and sequence analyses suggests that the two cell wall synthesis 
pathways share a number of distantly-related enzymes and therefore share a deep 
evolutionary history. This PhD project will investigate these deep evolutionary 
connections using thermophilic methanogens as model organisms and will focus on 
the synthesis of the glycan backbone of the methanogen cell walls. A separate 
PhD position in the overall project has been filled will investigate (in 
parallel) the synthesis of the cross-linking peptide.
 
The scholarship is available now, candidates are encouraged to apply (cover 
letter, CV & academic record) as soon as possible (closing date is September 
5th, 2014). Applicants must meet the requirements for entry into the Massey PhD 
program. The candidates will ideally have a strong interest and research 
background in structural biology and biochemistry.  The stipend is $NZ 30,500 
per year for three years and the Massey University fees are also paid from the 
grant.
 
The primary supervisors include Dr Ron Ronimus (AgResearch) and Dr Andrew 
Sutherland-Smith (IFS, Massey University). The Marsden project also includes 
collaboration with Professor William Martin, University of Dusseldorf, Germany.
 
Interested persons can contact principle investigator Dr Ron Ronimus 
(ron.roni...@agresearch.co.nz, phone (+64-6-351-8036) or Fax (+64-6-351-8003). 
Alternatively, interested persons can contact Dr Andrew Sutherland-Smith 
(a.j.sutherland-sm...@massey.ac.nz).

Andrew Sutherland-Smith, PhD
Biochemistry, Biotechnology & Biomedical Science
Institute of Fundamental Sciences
Massey University
Private Bag 11222
Palmerston North 4442
New Zealand

Phone: +6463569099 x84701

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