D-Man-alpha-(1-3)-D-Glc-beta-(1-4)-D-Glc-alpha-1-diphosphoundecaprenol 2-beta-glucuronyltransferase

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D-Man-alpha-(1->3)-D-Glc-beta-(1->4)-D-Glc-alpha-1-diphosphoundecaprenol 2-beta-glucuronyltransferase
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EC no. 2.4.1.264
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D-Man-alpha-(1->3) -D-Glc-beta-(1->4) -D-Glc-alpha-1-diphosphoundecaprenol 2-beta-glucuronyltransferase (EC 2.4.1.264, GumK) is an enzyme with the systematic name UDP-glucuronate: D-Man-alpha-(1->3) -D-Glc-beta-(1->4)-D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol beta-1,2-glucuronyltransferase. [1] [2] [3] [4] [5] [6] [7] This enzyme catalyses the following chemical reaction:

UDP-glucuronate + D-Man-alpha-(1->3) -D-Glc-beta-(1->4) -D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol UDP + D-GlcA-beta-(1->2) -D-Man-alpha-(1->3) -D-Glc-beta-(1->4) -D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol

The enzyme is involved in the biosynthesis of the exopolysaccharides xanthan (in the bacterium Xanthomonas campestris ) and acetan (in the bacterium Gluconacetobacter xylinus ).

Related Research Articles

<span class="mw-page-title-main">Xanthan gum</span> Polysaccharide gum used as a food additive and thickener

Xanthan gum is a polysaccharide with many industrial uses, including as a common food additive. It is an effective thickening agent and stabilizer that prevents ingredients from separating. It can be produced from simple sugars by fermentation and derives its name from the species of bacteria used, Xanthomonas campestris.

<i>Xanthomonas campestris</i> Species of bacterium

Xanthomonas campestris is a gram-negative, obligate aerobic bacterium that is a member of the Xanthomonas genus, which is a group of bacteria that are commonly known for their association with plant disease. This species includes Xanthomonas campestris pv. campestris the cause of black rot of brassicas, one of the most important diseases of brasicas worldwide.

<i>Xanthomonas</i> Genus of bacteria

Xanthomonas is a genus of bacteria, many of which cause plant diseases. There are at least 27 plant associated Xanthomonas spp., that all together infect at least 400 plant species. Different species typically have specific host and/or tissue range and colonization strategies.

The enzyme xanthan lyase catalyzes the following process:

<span class="mw-page-title-main">Galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase</span> Class of enzymes

In enzymology, a galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a N-acetylgalactosaminyl-proteoglycan 3-beta-glucuronosyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a N-acetylglucosaminyl-proteoglycan 4-beta-glucuronosyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, an undecaprenyldiphospho-muramoylpentapeptide beta-N-acetylglucosaminyltransferase is an enzyme that catalyzes the chemical reaction

GlcA-beta-(1->2)-D-Man-alpha-(1->3)-D-Glc-beta-(1->4)-D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol 4-beta-mannosyltransferase is an enzyme with systematic name GDP-mannose:GlcA-beta-(1->2)-D-Man-alpha-(1->3)-D-Glc-beta-(1->4)-D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol 4-beta-mannosyltransferase. This enzyme catalyses the following chemical reaction

GDP-mannose:cellobiosyl-diphosphopolyprenol alpha-mannosyltransferase is an enzyme with systematic name GDP-mannose:D-Glc-beta-(1->4)-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol 3-alpha-mannosyltransferase . This enzyme catalyses the following chemical reaction

Cyanidin-3-O-glucoside 2-O-glucuronosyltransferase is an enzyme with systematic name UDP-D-glucuronate:cyanidin-3-O-beta-D-glucoside 2-O-beta-D-glucuronosyltransferase. This enzyme catalyses the following chemical reaction

Soyasapogenol glucuronosyltransferase is an enzyme with systematic name UDP-D-glucuronate:soyasapogenol 3-O-D-glucuronosyltransferase. This enzyme catalyses the following chemical reaction

Rhamnopyranosyl-N-acetylglucosaminyl-diphospho-decaprenol beta-1,3/1,4-galactofuranosyltransferase is an enzyme with systematic name UDP-alpha-D-galactofuranose:alpha-L-rhamnopyranosyl-(1->3)-N-acetyl-alpha-D-glucosaminyl-diphospho-trans,octacis-decaprenol 3-beta/4-beta-galactofuranosyltransferase. This enzyme catalyses the following chemical reaction

Galactofuranosylgalactofuranosylrhamnosyl-N-acetylglucosaminyl-diphospho-decaprenol beta-1,5/1,6-galactofuranosyltransferase is an enzyme with systematic name UDP-alpha-D-galactofuranose:beta-D-galactofuranosyl-(1->5)-beta-D-galactofuranosyl-(1->4)-alpha-L-rhamnopyranosyl-(1->3)-N-acetyl-alpha-D-glucosaminyl-diphospho-trans,octacis-decaprenol 4-beta/5-beta-D-galactofuranosyltransferase. This enzyme catalyses the following chemical reaction

GalNAc5-diNAcBac-PP-undecaprenol beta-1,3-glucosyltransferase is an enzyme with systematic name UDP-alpha-D-glucose:(GalNAc-alpha- )4-GalNAc-alpha-(1->3)-diNAcBac-diphospho-tritrans,heptacis-undecaprenol 3-beta-D-glucosyltransferase. This enzyme catalyses the following chemical reaction

Xanthan ketal pyruvate transferase is an enzyme with systematic name phosphoenolpyruvate:D-Man-beta-(1->4)-GlcA-beta-(1->2)-D-Man-alpha-(1->3)-D-Glc-beta-(1->4)-D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol 4,6-O-(1-carboxyethan-1,1-diyl)transferase. This enzyme catalyses the following chemical reaction

Undecaprenyl-phosphate glucose phosphotransferase is an enzyme with systematic name UDP-glucose:ditrans,octacis-undecaprenyl-phosphate glucose phosphotransferase. This enzyme catalyses the following chemical reaction

UDP-N-acetylglucosamine—undecaprenyl-phosphate N-acetylglucosaminephosphotransferase is an enzyme with systematic name UDP-N-acetyl-alpha-D-glucosamine:ditrans,octacis-undecaprenyl phosphate N-acetyl-alpha-D-glucosaminephosphotransferase. This enzyme catalyses the following chemical reaction

UDP-N-acetylglucosamine---decaprenyl-phosphate N-acetylglucosaminephosphotransferase is an enzyme with systematic name UDP-N-acetyl-alpha-D-glucosamine:trans,octacis-decaprenyl-phosphate N-acetylglucosaminephosphotransferase. This enzyme catalyses the following chemical reaction

<span class="mw-page-title-main">Methyltransferase/kinase WbdD</span>

Methyltransferase/kinase WbdD EC 2.1.1.294 and EC 2.7.1.181WbdD is a bifunctional enzyme that regulates the length of the LPS O-antigen polysaccharide chain. Stops the polymerization of the chain by phosphorylating and then methylating the phosphate on the terminal sugar. This terminal modification is essential for export of the O-antigen across the inner membrane. WbdD is also required for correct localization of the WbdA mannosyltransferase.

References

  1. ↑ Katzen F, Ferreiro DU, Oddo CG, Ielmini MV, Becker A, Pühler A, Ielpi L (April 1998). "Xanthomonas campestris pv. campestris gum mutants: effects on xanthan biosynthesis and plant virulence". Journal of Bacteriology. 180 (7): 1607–17. doi:10.1128/JB.180.7.1607-1617.1998. PMC   107069 . PMID   9537354.
  2. ↑ Ielpi L, Couso RO, Dankert MA (May 1993). "Sequential assembly and polymerization of the polyprenol-linked pentasaccharide repeating unit of the xanthan polysaccharide in Xanthomonas campestris". Journal of Bacteriology. 175 (9): 2490–500. doi:10.1128/jb.175.9.2490-2500.1993. PMC   204549 . PMID   7683019.
  3. ↑ Kim SY, Kim JG, Lee BM, Cho JY (February 2009). "Mutational analysis of the gum gene cluster required for xanthan biosynthesis in Xanthomonas oryzae pv oryzae". Biotechnology Letters. 31 (2): 265–70. doi:10.1007/s10529-008-9858-3. PMID   18854951.
  4. ↑ Barreras M, Bianchet MA, Ielpi L (September 2006). "Crystallization and preliminary crystallographic characterization of GumK, a membrane-associated glucuronosyltransferase from Xanthomonas campestris required for xanthan polysaccharide synthesis". Acta Crystallographica. Section F, Structural Biology and Crystallization Communications. 62 (Pt 9): 880–3. doi:10.1107/S1744309106028764. PMC   2242869 . PMID   16946469.
  5. ↑ Barreras M, Salinas SR, Abdian PL, Kampel MA, Ielpi L (September 2008). "Structure and mechanism of GumK, a membrane-associated glucuronosyltransferase". The Journal of Biological Chemistry. 283 (36): 25027–35. doi: 10.1074/jbc.M801227200 . PMC   3259810 . PMID   18596046.
  6. ↑ Vojnov AA, Bassi DE, Daniels MJ, Dankert MA (February 2002). "Biosynthesis of a substituted cellulose from a mutant strain of Xanthomonas campestris". Carbohydrate Research. 337 (4): 315–26. doi:10.1016/S0008-6215(01)00322-6. PMID   11841812.
  7. ↑ Barreras M, Abdian PL, Ielpi L (March 2004). "Functional characterization of GumK, a membrane-associated beta-glucuronosyltransferase from Xanthomonas campestris required for xanthan polysaccharide synthesis". Glycobiology. 14 (3): 233–41. doi: 10.1093/glycob/cwh056 . PMID   14736729.
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