| XGPT | xylosylprotein-4-beta-galactosyltransferase |
|---|---|
| XL | excess lactate; X-linked [inheritance]; xylose-lysine [agar base] |
| XLD | xylose-lysine-deoxycholate [agar] |
| Xyl | xylose |
| XYL | D-xylose |
|---|---|
| XR | Xylose reductase |
| GalTase | 1,4-Galactosyltransferase |
| GT | 1----4)galactosyltransferase |
| GalT | 4-galactosyltransferase |
| UDP-galactose xylose galactosyltransferase | <enzyme> Involved in chondroitin sulfate synthesis Registry number: EC 2.4.1.- (26 Jun 1999) |
|---|
| UDPgalactose-2-hydroxyacylsphingosine galactosyltransferase | <enzyme> This enzyme has also been called udp-galactose-ceramide galactosyltrasferase, see EC 2.4.1.62 Registry number: EC 2.4.1.45 Synonym: udp-galactose ceramide galactosyltransferase, cgt gene product, cerebroside synthetase, 2-hydroxyacylsphingosine 1-beta-galactosyltransferase (26 Jun 1999) |
|---|---|
| UDPgalactose-N-acetylgalactosamine galactosyltransferase | <enzyme> Transfers galactose to serine or threonine-linked oligosaccharides; involved in myogenesis Registry number: EC 2.4.1.- Synonym: galnac galactosyltransferase II (26 Jun 1999) |
| UDP-galactose 4-O-beta-D-galactosyl-D-xylose galactosyltransferase | <enzyme> Involved in chondroitin sulfate synthesis Registry number: EC 2.4.1.- (26 Jun 1999) |
| UDPgalactose | A pyrophosphate group links the 5'-position of uridine and the 1 position of d-galactose. (05 Mar 2000) |
| UDPgalactose 4-epimerase | <enzyme> A necessary enzyme in the metabolism of galactose. It reversibly catalyses the conversion of udpglucose to udpgalactose. NAD+ is an essential component for enzymatic activity. Chemical name: UDPglucose 4-epimerase Registry number: EC 5.1.3.2 (12 Dec 1998) |
| UDPgalactose - UDP-N-acetylglucosamine galactosephosphotransferase | <enzyme> Forms udp n-acetylglucosamine-6-phosphogalactose Registry number: EC 2.7.8.18 Synonym: galactose-1-phosphotransferase, udpgalactose-n-acetylglucosamine galactose-1-phosphotransferase (26 Jun 1999) |
| xylose | <biochemistry> Monosaccharide pentose that is found in xylans, very abundant components of hemicelluloses. (18 Nov 1997) |
| xylose isomerase | <enzyme> Note that xyla has been used to refer to both xylose isomerase and xylanase a Registry number: EC 5.3.1.5 Synonym: glucose isomerase, d-acidic-ketolysoisomerase (26 Jun 1999) |
| xylose test | A laboratory aid in diagnosing alimentary or essential pentosuria, conditions in which xylose (a pentose) is excreted; the xylose may be identified by rapid reduction of Benedict's solution, by nonfermentation by yeasts, or by a positive Bial's test for pentose. (05 Mar 2000) |
| xylose tolerance test | <investigation> This test measures the intestine's ability to absorb the simple sugar, D-xylose. This is an indicator for whether or not nutrients are being absorbed properly in the intestine. This test is often used to evaluate persistent diarrhoea, weight loss, malnutrition and cases of suspected malabsorption. Abnormal results may be seen in the following conditions: Crohn's disease, Giardiasis, hookworm infestation, radiation enteritis, celiac sprue, viral gastroenteritis and Whipple's disease. (27 Sep 1997) |
| d-xylose absorption | This test measures the intestine's ability to absorb the simple sugar, D-xylose. This is an indicator for whether or not nutrients are being absorbed properly in the intestine. This test is often used to evaluate persistent diarrhoea, weight loss, malnutrition and cases of suspected malabsorption. Abnormal results may be seen in the following conditions: Crohn's disease, Giardiasis, hookworm infestation, radiation enteritis, celiac sprue, viral gastroenteritis and Whipple's disease. (27 Sep 1997) |
| UDP-D-xylose-beta-D-glucoside alpha-1,3-xylosyltransferase | <enzyme> Catalyses transfer of xylose from udp-d-xylose to glucose Registry number: EC 2.4.2.- Synonym: udp-xyl-glc axt, beta-glucoside alpha-1,3-xylosyltransferase (26 Jun 1999) |
| UDP-D-xylose-xyloside alpha-1,3-xylosyltransferase | <enzyme> Catalyses transfer of xylose from udp-d-xylose to position 3 of xyl-1-3-glc-r' Registry number: EC 2.4.2.- Synonym: udp-xyl-xyl axt (26 Jun 1999) |
| uridine diphosphate xylose | <chemical> The decarboxylation product of udpglucuronic acid, which is used for formation of the xylosides of seryl hydroxyl groups in mucoprotein synthesis. Also forms plant xylans. Chemical name: Uridine 5'-(trihydrogen diphosphate), P'-alpha-D-xylopyranosyl ester (12 Dec 1998) |
| beta-n-acetylglucosaminylglycopeptide beta-1,4-galactosyltransferase | <enzyme> An enzyme that catalyses the transfer of galactose from udp-galactose to a specific glycoprotein receptor, 2-acetamido-2-deoxy-d-glucosyl-glycopeptide, during glycopeptide synthesis. Chemical name: UDPgalactose:N-acetyl-beta-D-glucosaminylglycopeptide beta-1,4-galactosyltransferase Registry number: EC 2.4.1.38 (12 Dec 1998) |
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