| Structural highlights
Function
BAM1_ARATH Beta-amylase activity. Can use p-nitrophenyl maltopentaoside (PNPG5) as substrate only in reduced form. Can play a minor role in the starch degradation and maltose metabolism in chloroplasts during the night. More active on phosphorylated glucan. Interacts directly with starch or other alpha-1,4-glucan.[1] [2] [3]
References
- ↑ Edner C, Li J, Albrecht T, Mahlow S, Hejazi M, Hussain H, Kaplan F, Guy C, Smith SM, Steup M, Ritte G. Glucan, water dikinase activity stimulates breakdown of starch granules by plastidial beta-amylases. Plant Physiol. 2007 Sep;145(1):17-28. PMID:17631522 doi:10.1104/pp.107.104224
- ↑ Fulton DC, Stettler M, Mettler T, Vaughan CK, Li J, Francisco P, Gil M, Reinhold H, Eicke S, Messerli G, Dorken G, Halliday K, Smith AM, Smith SM, Zeeman SC. Beta-AMYLASE4, a noncatalytic protein required for starch breakdown, acts upstream of three active beta-amylases in Arabidopsis chloroplasts. Plant Cell. 2008 Apr;20(4):1040-58. PMID:18390594 doi:10.1105/tpc.107.056507
- ↑ Li J, Francisco P, Zhou W, Edner C, Steup M, Ritte G, Bond CS, Smith SM. Catalytically-inactive beta-amylase BAM4 required for starch breakdown in Arabidopsis leaves is a starch-binding-protein. Arch Biochem Biophys. 2009 Sep;489(1-2):92-8. PMID:19664588 doi:10.1016/j.abb.2009.07.024
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