Functional Plant Biology Functional Plant Biology Society
Plant function and evolutionary biology
REVIEW

Seed storage albumins: biosynthesis, trafficking and structures

Joshua S. Mylne A D , Ikuko Hara-Nishimura B and K. Johan Rosengren C
+ Author Affiliations
- Author Affiliations

A The University of Western Australia, School of Chemistry and Biochemistry and ARC Centre of Excellence in Plant Energy Biology, 35 Stirling Highway, Crawley, Perth, WA 6009, Australia.

B Department of Botany, Graduate School of Science, Kyoto University, Kitashirakawa-oiwake cho Sakyo-ku, Kyoto, 606-8502, Japan.

C The University of Queensland, School of Biomedical Sciences, Brisbane, Qld 4072, Australia.

D Corresponding author. Email: joshua.mylne@uwa.edu.au

This review originates from the Peter Goldacre Award 2012 of the Australian Society of Plant Scientists that was received by the first author.

Functional Plant Biology 41(7) 671-677 https://doi.org/10.1071/FP14035
Submitted: 24 January 2014  Accepted: 24 March 2014   Published: 6 May 2014

Abstract

Seed storage albumins are water-soluble and highly abundant proteins that are broken-down during seed germination to provide nitrogen and sulfur for the developing seedling. During seed maturation these proteins are subject to post-translational modifications and trafficking before they are deposited in great quantity and with great stability in dedicated vacuoles. This review will cover the subcellular movement, biochemical processing and mature structures of seed storage napins.

Additional keywords: asparaginyl endo-peptidase, napin, seed storage protein, vacuolar processing enzyme, 2S albumin.


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