Glycoprotein transport into chloroplasts

Švorinić, Andrea (2015) Glycoprotein transport into chloroplasts. Bachelor's thesis, Faculty of Science > Department of Biology.

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Abstract

Most of the proteins required for plastid functioning are nucleus-encoded and synthesized in the cytosol and therefore must be transfered across membranes of the organel to reach their final destination. Consequently, both a signaling system and translocation machinery had to evolve in order to integrate the endosymbiont which would thereby become an organel of the host cell. Complex plastids evolved by secondary endosymbiosis and are, in contrast to primary plastids, surrounded by three or four envelope membranes. Thus, nucleus-encoded preproteins face additional barriers and new transport systems had to evolve to overcome this problem. Recent studies suggest that preexisting transport machineries were recycled and modified. The discovery of glycoproteins not only in primary but also in complex plastids gives rise to new questions, as most translocation machineries are not believed to be able to trasport bulky proteins. The aim of this review is to describe and discuss so far known translocation systems involved in transport of glycoproteins into complex plastids, as well as proposed models for yet unsolved problems.

Item Type: Thesis (Bachelor's thesis)
Supervisor: Balen, Biljana
Date: 2015
Number of Pages: 13
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 14 Apr 2016 14:21
Last Modified: 14 Apr 2016 14:21
URI: http://digre.pmf.unizg.hr/id/eprint/4751

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