sucrase

sucrase
SYN: sucrose α-d-glucohydrolase.

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su·crase 'sü-.krās, -.krāz n INVERTASE

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n.
an enzyme, secreted by glands in the small intestine, that catalyses the hydrolysis of sucrose into its components (glucose and fructose).

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su·crase (sooґkrās) an enzyme of the hydrolase class that catalyzes the cleavage of the glycosidic bond in the disaccharides sucrose and maltose to yield their component sugars. The enzyme occurs complexed with α-dextrinase in the brush border of the intestinal mucosa; deficiency of enzyme complex activity, an autosomal recessive trait called sucrase-isomaltase deficiency (see under deficiency), is a form of disaccharide intolerance. In EC nomenclature called sucrose α-glucosidase.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Sucrase — is the name given to a number of enzymes that catalyze the hydrolysis of sucrose to fructose and glucose. The enzyme invertase, which occurs more commonly in plants, also hydrolyzes sucrose but by a different mechanism.[1] Contents 1 Types 2 …   Wikipedia

  • Sucrase — Isomaltase Größe 1826 Aminosäuren Struktur single pass Typ 2 Membranprotein Bezeichner …   Deutsch Wikipedia

  • sucrase — [ sykraz ] n. f. • 1903; de sucre et ase ♦ Biochim. Saccharase. ● sucrase nom féminin Synonyme de invertase. ● sucrase (synonymes) nom féminin Synonymes : invertase …   Encyclopédie Universelle

  • sucrase — [so͞o′krās΄] n. [< Fr sucre,SUGAR + ASE] an enzyme present in certain plant and animal tissues that catalyzes the hydrolysis of sucrose into glucose and fructose …   English World dictionary

  • Sucrase — Saccharase La saccharase ou sucrase est une enzyme qui scinde le saccharose en une molécule de fructose et une de glucose. Cette enzyme, secrétée par les cryptes de Lieberkühn, est présente dans la muqueuse intestinale. Si la saccharase n est pas …   Wikipédia en Français

  • sucrase — /sooh krays, krayz/, n. Biochem. invertase. [1895 1900; < F sucre SUGAR + ASE] * * * ▪ enzyme also called  Invertase,         any member of a group of enzymes present in yeast and in the intestinal mucosa of animals that catalyze the hydrolysis… …   Universalium

  • Sucrase-Isomaltase — Masse/Länge Primärstruktur 1826 Aminosäuren …   Deutsch Wikipedia

  • Sucrase-isomaltase — protein Name=sucrase isomaltase (alpha glucosidase) caption= width= HGNCid=10856 Symbol=SI AltSymbols= EntrezGene=6476 OMIM=609845 RefSeq=NM 001041 UniProt=P14410 PDB= ECnumber=3.2.1.10 Chromosome=3 Arm=q Band=25.2 LocusSupplementaryData=… …   Wikipedia

  • sucrase-isomaltase complex — the enzyme complex comprising sucrase and α dextrinase (isomaltase) activities, occurring in the brush border of the intestinal mucosa and hydrolyzing maltose as well as maltotriose and some other glycosidic bonds; the enzymes are… …   Medical dictionary

  • sucrase-isomaltase deficiency — a disaccharidase deficiency caused by mutations in the SI gene (locus: 3q25 q26), which encodes the sucrase isomaltase complex of the intestinal mucosa, leading to deficient activity of the complex with resulting malabsorption of sucrose and… …   Medical dictionary

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