2.4.1.242: NDP-glucose-starch glucosyltransferase

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For detailed information about NDP-glucose-starch glucosyltransferase, go to the full flat file.

Reaction

Synonyms

GBSS, GBSS I, GBSS1, GBSS2, GBSS3, GBSSI, GBSSIa, GBSSIb, GBSSII, GBSSII-1, granule bound starch synthase, granule bound starch synthase I, granule-bound SSIIa protein, granule-bound starch synthase, granule-bound starch synthase 1, granule-bound starch synthase I, granule-bound starch synthase I gene, granule-bound starch synthase Ia, granule-bound starch synthase Ib, granule-bound starch synthase II, More, NDP-glucose-starch glucosyltransferase, NDPglucose-starch glucosyltransferase, SGP-1, SSII, SSIIa protein, starch synthase II, starch synthase IIa, starch-granule-bound starch synthase, UDPGlc: starch synthase, Waxy, Waxy protein, Wx protein, Wx-7A, Wx-A1, Wx-B1, Wx-D1, Wx-D1 protein

ECTree

     2 Transferases

         2.4 Glycosyltransferases

             2.4.1 Hexosyltransferases

                2.4.1.242 NDP-glucose-starch glucosyltransferase

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Results	in table
4	Activating Compound
43	AA Sequence
7	Application
1	CAS Registry Number
39	Cloned(Commentary)
1	Crystallization (Commentary)
9	Expression
49	General Information
1	General Stability
12	Inhibitors
9	Ki Value [mM]
13	KM Value [mM]
13	Localization
34	Molecular Weight [Da]
23	Natural Substrates/ Products (Substrates)
97	Organism
1	Oxidation Stability
4	Pathway
2	PDB ID
11	pH Optimum
2	pH Range
4	Posttranslational Modification
10	Protein Variants
14	Purification (Commentary)
1	Reaction
5	Reaction Type
86	Reference
80	Source Tissue
7	Specific Activity [micromol/min/mg]
51	Substrates and Products (Substrate)
28	Subunits
197	Synonyms
1	Systematic Name
9	Temperature Optimum [°C]
2	Temperature Range [°C]

Systematic Name

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Systematic Name on EC 2.4.1.242 - NDP-glucose-starch glucosyltransferase

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SYSTEMATIC NAME

IUBMB Comments

NDP-glucose:(1->4)-alpha-D-glucan 4-alpha-D-glucosyltransferase

Unlike EC 2.4.1.11, glycogen(starch) synthase and EC 2.4.1.21, starch synthase, which use UDP-glucose and ADP-glucose, respectively, this enzyme can use either UDP- or ADP-glucose. Mutants that lack the Wx (waxy) allele cannot produce this enzyme, which plays an important role in the normal synthesis of amylose. In such mutants, only amylopectin is produced in the endosperm [3] or pollen [5].