NDP-glucose—starch glucosyltransferase

NDP-glucose-starch glucosyltransferase
Identifiers
EC number	2.4.1.242
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles

In enzymology, a NDP-glucose-starch glucosyltransferase (EC 2.4.1.242) is an enzyme that catalyzes the chemical reaction

NDP-glucose + (1,4-alpha-D-glucosyl)n $\rightleftharpoons$ NDP + (1,4-alpha-D-glucosyl)n⁺1

Thus, the two substrates of this enzyme are NDP-glucose and (1,4-alpha-D-glucosyl)n, whereas its two products are NDP and (1,4-alpha-D-glucosyl)n+1.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is NDP-glucose:1,4-alpha-D-glucan 4-alpha-D-glucosyltransferase. Other names in common use include granule-bound starch synthase, starch synthase II (ambiguous), waxy protein, starch granule-bound nucleoside diphosphate glucose-starch, glucosyltransferase, granule-bound starch synthase I, GBSSI, granule-bound starch synthase II, GBSSII, GBSS, and NDPglucose-starch glucosyltransferase.

References

• Tsai CY (1974). "The function of the waxy locus in starch synthesis in maize endosperm". Biochem. Genet. 11 (2): 83–96. doi:10.1007/BF00485766. PMID 4824506. 
• Nakamura T, Vrinten P, Hayakawa K, Ikeda J (1998). "Characterization of a granule-bound starch synthase isoform found in the pericarp of wheat". Plant. Physiol. 118 (2): 451–9. doi:10.1104/pp.118.2.451. PMC 34820. PMID 9765530. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=34820. 
• Fujita N, Taira T (1998). "A 56-kDa protein is a novel granule-bound starch synthase existing in the pericarps, aleurone layers, and embryos of immature seed in diploid wheat (Triticum monococcum L.)". Planta. 207 (1): 125–32. doi:10.1007/s004250050464. PMID 9951718. 
• Murai J, Taira T, Ohta D (1999). "Isolation and characterization of the three Waxy genes encoding the granule-bound starch synthase in hexaploid wheat". Gene. 234 (1): 71–9. doi:10.1016/S0378-1119(99)00178-X. PMID 10393240. 
• Nelson OE (1968). "The waxy locus in maize. II The location of the controlling element alleles". Genetics 60: 507–524. PMID 17248421. 

This enzyme-related article is a stub. You can help Wikipedia by expanding it.v · Categories: Enzyme stubs EC 2.4.1 Enzymes of unknown structure Wikimedia Foundation. 2010. Игры ⚽ Поможем решить контрольную работу Nevada Department of Wildlife Non-departmental public body Look at other dictionaries: NDP-glucose-starch glucosyltransferase — In enzymology, a NDP glucose starch glucosyltransferase (EC number|2.4.1.242) is an enzyme that catalyzes the chemical reaction:NDP glucose + (1,4 alpha D glucosyl)n ightleftharpoons NDP + (1,4 alpha D glucosyl)n+1Thus, the two substrates of this …   Wikipedia List of EC numbers (EC 2) — This list contains a list of EC numbers for the second group, EC 2, transferases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology.EC 2.1: Transferring One… …   Wikipedia Sucrose synthase — In enzymology, a sucrose synthase (EC number|2.4.1.13) is an enzyme that catalyzes the chemical reaction:NDP glucose + D fructose ightleftharpoons NDP + sucroseThus, the two substrates of this enzyme are NDP glucose and D fructose, whereas its… …   Wikipedia 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”