KEGG   ENZYME: 2.4.1.251Help
Entry
EC 2.4.1.251                Enzyme                                 

Name
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;
GumI
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname
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
Reaction(IUBMB)
GDP-mannose + GlcA-beta-(1->2)-D-Man-alpha-(1->3)-D-Glc-beta-(1->4)-D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol = GDP + 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 [RN:R09734]
Reaction(KEGG)
Substrate
GDP-mannose [CPD:C00096];
GlcA-beta-(1->2)-D-Man-alpha-(1->3)-D-Glc-beta-(1->4)-D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol
Product
GDP [CPD:C00035];
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
Comment
The enzyme is involved in the biosynthesis of the exopolysaccharide xanthan.
History
EC 2.4.1.251 created 2011
Orthology
K13658  
beta-1,4-mannosyltransferase 
Genes
XCC: 
XCC2447(gumI)
XCB: 
XCA: 
XCP: 
XCR_2760(gumI)
XCV: 
XCV2780(gumI)
XAC: 
XAC2578(gumI)
XAX: 
XACM_2560(gumI)
XOO: 
XOO3172(gumI)
XOM: 
XOP: 
PXO_01399(gumI)
XOR: 
XOC_1874(gumI)
 » show all
Taxonomy
Reference
1  [PMID:9537354]
  Authors
Katzen F, Ferreiro DU, Oddo CG, Ielmini MV, Becker A, Puhler A, Ielpi L
  Title
Xanthomonas campestris pv. campestris gum mutants: effects on xanthan biosynthesis and plant virulence.
  Journal
J. Bacteriol. 180 (1998) 1607-17.
  Sequence
[xcc:XCC2447]
Reference
2  [PMID:7683019]
  Authors
Ielpi L, Couso RO, Dankert MA
  Title
Sequential assembly and polymerization of the polyprenol-linked pentasaccharide repeating unit of the xanthan polysaccharide in Xanthomonas campestris.
  Journal
J. Bacteriol. 175 (1993) 2490-500.
Reference
3  [PMID:18854951]
  Authors
Kim SY, Kim JG, Lee BM, Cho JY
  Title
Mutational analysis of the gum gene cluster required for xanthan biosynthesis in  Xanthomonas oryzae pv oryzae.
  Journal
Biotechnol. Lett. 31 (2009) 265-70.
  Sequence
[xop:PXO_01398]
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 

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