Protein translocation and thylakoid biogenesis in cyanobacteria

Frain, Kelly M and Gangl, Doris and Jones, Alexander and Zedler, Julie A Z and Robinson, Colin (2016) Protein translocation and thylakoid biogenesis in cyanobacteria. Biochimica et biophysica acta, 1857 (3). pp. 266-273. ISSN 0006-3002. (doi:https://doi.org/10.1016/j.bbabio.2015.08.010) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1016/j.bbabio.2015.08.010

Abstract

Cyanobacteria exhibit a complex form of membrane differentiation that sets them apart from most bacteria. Many processes take place in the plasma membrane, but photosynthetic light capture, electron transport and ATP synthesis take place in an abundant internal thylakoid membrane. This review considers how this system of subcellular compartmentalisation is maintained, and how proteins are directed towards the various subcompartments--specifically the plasma membrane, periplasm, thylakoid membrane and thylakoid lumen. The involvement of Sec-, Tat- and signal recognition particle- (SRP)-dependent protein targeting pathways is discussed, together with the possible involvement of a so-called 'spontaneous' pathway for the insertion of membrane proteins, previously characterised for chloroplast thylakoid membrane proteins. An intriguing aspect of cyanobacterial cell biology is that most contain only a single set of genes encoding Sec, Tat and SRP components, yet the proteomes of the plasma and thylakoid membranes are very different. The implications for protein sorting mechanisms are considered. This article is part of a Special Issue entitled Organization and dynamics of bioenergetic systems in bacteria, edited by Prof Conrad Mullineaux.

Item Type: Article
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculties > Sciences > School of Biosciences
Depositing User: Colin Robinson
Date Deposited: 10 May 2016 13:05 UTC
Last Modified: 11 May 2016 08:41 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/55364 (The current URI for this page, for reference purposes)
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