Postdoctoral Research Position (Photosynthesis and Light Signalling)
School of Biological Sciences, Biosciences Building, Crown Street,University of 
Liverpool, Liverpool L69 7ZB

Background 
The aim of the research programme is to investigate the spectroscopic and 
structural properties of a number of macromolecules involved in photosynthesis 
within the non-sulphur purple bacterium Rps. palustris. The bacterium is 
actively being studied by a number of groups as a model for CO2 uptake, a 
source of bio-fuels and a possible role for bioremediation. The photosynthetic 
apparatus comprises LH1-RC complex, the peripheral LH2 complexes and a novel 
LH4 complex which is adapted to low-light conditions.  The structure of LH4 
will help to understand how solar energy is trapped efficiently when light 
intensities are low. The information maybe used to design better solar cells. A 
number of light sensing bacteriophytochromes (Bphs) are found in this 
bacterium, four of which control the expression of photosynthetic genes. Two 
Bphs control the expression of LH4 while another controls a large cluster of 
genes that encode for enzymes responsible for chromophore biogenesis and for t!
 he synthesis of LH1 and RC complex polypeptides. 

A number of Bphs constructs have been cloned and purified while LH4, which is a 
membrane protein, has been purified from photosynthetic membranes. Bphs and LH4 
have been crystallised and are currently being studied. There are also 
opportunities for contributing to dynamics studies by time resolved 
spectroscopy.

Role/Work Programme 
The applicant will be expected to contribute to various parts of the project, 
such as sample purification, crystal growth, X-ray diffraction experiments and 
time resolved spectroscopy experiments. Data will be collected at facilities 
such as DIAMOND and CLF. If some of the experimental methods are new to the 
candidate there will be an opportunity to learn the techniques.  

Personal Skills and Attributes Required 
The applicant should have a PhD in a relevant biological subject and experience 
in protein purification is important.  Post-doctoral experience would be 
beneficial but not essential.  Good computer skills and a working knowledge of 
protein crystallography packages will be an advantage. The project is broad 
ranging in its scope and an ability to think creatively and to explore new 
research directions is important.

To obtain an application form and further details follow the link bellow. 
For informal enquiries please email [EMAIL PROTECTED]

Ref: R-568895
http://www.liv.ac.uk/working/job_vacancies/research/R-568895.htm
Closing date for receipt of applications: 9 January 2009

The University of Liverpool is and equal opportunity employer.

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