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Starch phosphorylase








Starch phosphorylase


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Starch phosphorylase is a form of phosphorylase similar to glycogen phosphorylase, except that it acts upon starch instead of glycogen.


The plant alpha-glucan phosphorylase, commonly called starch phosphorylase (EC 2.4.1.1), is largely known for the phosphorolytic degradation of starch. Starch phosphorylase catalyzes the reversible transfer of glucosyl units from glucose-1-phosphate to the nonreducing end of alpha-1,4-D-glucan chains with the release of phosphate. Two distinct forms of starch phosphorylase, plastidic phosphorylase and cytosolic phosphorylase, have been consistently observed in higher plants.



External links[edit]




  • Starch+phosphorylase at the US National Library of Medicine Medical Subject Headings (MeSH)


  • http://www.genome.ad.jp/dbget-bin/www_bget?ko+K00688
    • Rathore RS, Garg N, Garg S, Kumar A.



Crit Rev Biotechnol. 2009;29(3):214-24.
Starch phosphorylase: role in starch metabolism and biotechnological applications.
http://informahealthcare.com/doi/abs/10.1080/07388550902926063














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