Dextrin dextranase

dextrin dextranase
Identifiers
EC number	2.4.1.2
CAS number	9032-13-7
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / EGO
Search PMC articles PubMed articles

In enzymology, a dextrin dextranase (EC 2.4.1.2) is an enzyme that catalyzes the chemical reaction

(1,4-alpha-D-glucosyl)n + (1,6-alpha-D-glucosyl)m $\rightleftharpoons$ (1,4-alpha-D-glucosyl)n-1 + (1,6-alpha-D-glucosyl)m⁺1

Thus, the two substrates of this enzyme are (1,4-alpha-D-glucosyl)n and (1,6-alpha-D-glucosyl)m, whereas its two products are (1,4-alpha-D-glucosyl)n-1 and (1,6-alpha-D-glucosyl)m+1.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is 1,4-alpha-D-glucan:1,6-alpha-D-glucan 6-alpha-D-glucosyltransferase. Other names in common use include dextrin 6-glucosyltransferase, and dextran dextrinase.

References

• Hehre EJ (1951). "Enzymic synthesis of polysaccharides: a biological type of polymerization". Adv. Enzymol. Relat. Subj. Biochem. 11: 297–337. doi:10.1002/9780470122563.ch6. 
• Hehre EJ and Hamilton DM (1949). "Bacterial conversion of dextrin into a polysaccharide with the serological properties of dextran". Proc. Soc. Exp. Biol. Med. 71: 336–339. 
• Hehre EJ and Hamilton DM (1953). "The biological synthesis of dextran from dextrins". J. Biol. Chem. 192: 161–174. 

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 написать реферат Michigan salad Rhind Mathematical Papyrus 2/n table Look at other dictionaries: dextrin dextranase — A glucosyltransferase transferring 1,4 α d glucosyl residues, thus catalyzing the synthesis of dextrans (with 1,6 links between monosaccharide units) from dextrins (with 1,4 links) by glucose transfer. SYN: dextrin → dextran transglucosidase,… …   Medical dictionary dextrin → dextran transglucosidase — SYN: dextrin dextranase …   Medical dictionary dextrin 6-glucosyltransferase — SYN: dextrin dextranase …   Medical dictionary dextrinase — Any of the enzymes catalyzing the hydrolysis of dextrins; e.g., amylo 1,6 glucosidase, dextrin dextranase. limit d. 1. SYN: α dextrin endo 1,6 α glucosidase. 2. SYN: oligo α 1,6 glucosidase. * * * dex·trin·ase (dekґstrin ās) any enzyme that… …   Medical dictionary 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 glycogenesis — Formation of glycogen from d glucose by means of glycogen synthase and dextrin dextranase; the first enzyme catalyzes formation of a polyglucose with α 1,4 links from UDPglucose, the second cleaves fragments from one chain and transfers them to… …   Medical dictionary 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”