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2.4.1.290

Accepted name:

N,N′-diacetylbacillosaminyl-diphospho-undecaprenol α-1,3-N-acetylgalactosaminyltransferase

Reaction:

UDP-N-acetyl-α-D-galactosamine + N,N′-diacetyl-α-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol = UDP + N-acetyl-D-galactosaminyl-α-(1→3)-N,N′-diacetyl-α-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol

For diagram of undecaprenyldiphosphoheptasaccharide biosynthesis, click here

Glossary:

N,N′-diacetyl-D-bacillosamine = 2,4-diacetamido-2,4,6-trideoxy-D-glucopyranose

Other name(s):

PglA

Systematic name:

UDP-N-acetyl-α-D-galactosamine:N,N′-diacetyl-α-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol 3-α-N-acetyl-D-galactosaminyltransferase

Comments:

Isolated from Campylobacter jejuni. Part of a bacterial N-linked glycosylation pathway.

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc, PDB

References:

1.	Glover, K.J., Weerapana, E. and Imperiali, B. In vitro assembly of the undecaprenylpyrophosphate-linked heptasaccharide for prokaryotic N-linked glycosylation. Proc. Natl. Acad. Sci. USA 102 (2005) 14255–14259. [DOI] [PMID: 16186480]

[EC 2.4.1.290 created 2012]

2.4.1.291

Accepted name:

N-acetylgalactosamine-N,N′-diacetylbacillosaminyl-diphospho-undecaprenol 4-α-N-acetylgalactosaminyltransferase

Reaction:

UDP-N-acetyl-α-D-galactosamine + N-acetyl-D-galactosaminyl-α-(1→3)-N,N′-diacetyl-α-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol = UDP + N-acetyl-D-galactosaminyl-α-(1→4)-N-acetyl-D-galactosaminyl-α-(1→3)-N,N′-diacetyl-α-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol

For diagram of undecaprenyldiphosphoheptasaccharide biosynthesis, click here

Glossary:

N,N′-diacetyl-D-bacillosamine = 2,4-diacetamido-2,4,6-trideoxy-D-glucopyranose

Other name(s):

PglJ

Systematic name:

UDP-N-acetyl-α-D-galactosamine:N-acetylgalactosaminyl-α-(1→3)-N,N′-diacetyl-α-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol 3-α-N-acetyl-D-galactosaminyltransferase

Comments:

Isolated from Campylobacter jejuni. Part of a bacterial N-linked glycosylation pathway.

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc

References:

1.	Glover, K.J., Weerapana, E. and Imperiali, B. In vitro assembly of the undecaprenylpyrophosphate-linked heptasaccharide for prokaryotic N-linked glycosylation. Proc. Natl. Acad. Sci. USA 102 (2005) 14255–14259. [DOI] [PMID: 16186480]
2.	Chen, M.M., Weerapana, E., Ciepichal, E., Stupak, J., Reid, C.W., Swiezewska, E. and Imperiali, B. Polyisoprenol specificity in the Campylobacter jejuni N-linked glycosylation pathway. Biochemistry 46 (2007) 14342–14348. [DOI] [PMID: 18034500]

[EC 2.4.1.291 created 2012]

2.4.1.292

Accepted name:

GalNAc-α-(1→4)-GalNAc-α-(1→3)-diNAcBac-PP-undecaprenol α-1,4-N-acetyl-D-galactosaminyltransferase

Reaction:

3 UDP-N-acetyl-α-D-galactosamine + GalNAc-α-(1→4)-GalNAc-α-(1→3)-diNAcBac-PP-tritrans,heptacis-undecaprenol = 3 UDP + [GalNAc-α-(1→4)]₄-GalNAc-α-(1→3)-diNAcBac-PP-tritrans,heptacis-undecaprenol

For diagram of undecaprenyldiphosphoheptasaccharide biosynthesis, click here

Glossary:

diNAcBac = N,N′-diacetyl-D-bacillosamine = 2,4-diacetamido-2,4,6-trideoxy-D-glucopyranose

Other name(s):

PglH

Systematic name:

UDP-N-acetyl-α-D-galactosamine:GalNAc-α-(1→4)-GalNAc-α-(1→3)-diNAcBac-PP-tritrans,heptacis-undecaprenol 4-α-N-acetyl-D-galactosaminyltransferase

Comments:

Isolated from Campylobacter jejuni. Part of a bacterial N-linked glycosylation pathway.

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc

References:

1.	Glover, K.J., Weerapana, E. and Imperiali, B. In vitro assembly of the undecaprenylpyrophosphate-linked heptasaccharide for prokaryotic N-linked glycosylation. Proc. Natl. Acad. Sci. USA 102 (2005) 14255–14259. [DOI] [PMID: 16186480]
2.	Troutman, J.M. and Imperiali, B. Campylobacter jejuni PglH is a single active site processive polymerase that utilizes product inhibition to limit sequential glycosyl transfer reactions. Biochemistry 48 (2009) 2807–2816. [DOI] [PMID: 19159314]
3.	Borud, B., Viburiene, R., Hartley, M.D., Paulsen, B.S., Egge-Jacobsen, W., Imperiali, B. and Koomey, M. Genetic and molecular analyses reveal an evolutionary trajectory for glycan synthesis in a bacterial protein glycosylation system. Proc. Natl. Acad. Sci. USA 108 (2011) 9643–9648. [DOI] [PMID: 21606362]

[EC 2.4.1.292 created 2012]

2.4.1.293

Accepted name:

GalNAc₅-diNAcBac-PP-undecaprenol β-1,3-glucosyltransferase

Reaction:

UDP-α-D-glucose + [GalNAc-α-(1→4)]₄-GalNAc-α-(1→3)-diNAcBac-diphospho-tritrans,heptacis-undecaprenol = UDP + [GalNAc-α-(1→4)]₂-[Glc-β-(1→3)]-[GalNAc-α-(1→4)]₂-GalNAc-α-(1→3)-diNAcBac-diphospho-tritrans,heptacis-undecaprenol

For diagram of undecaprenyldiphosphoheptasaccharide biosynthesis, click here

Glossary:

diNAcBac = N,N′-diacetyl-D-bacillosamine = 2,4-diacetamido-2,4,6-trideoxy-D-glucopyranose

Other name(s):

PglI

Systematic name:

UDP-α-D-glucose:[GalNAc-α-(1→4)]4-GalNAc-α-(1→3)-diNAcBac-diphospho-tritrans,heptacis-undecaprenol 3-β-D-glucosyltransferase

Comments:

Isolated from the bacterium Campylobacter jejuni. Part of a bacterial N-linked glycosylation pathway.

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc

References:

1.	Glover, K.J., Weerapana, E. and Imperiali, B. In vitro assembly of the undecaprenylpyrophosphate-linked heptasaccharide for prokaryotic N-linked glycosylation. Proc. Natl. Acad. Sci. USA 102 (2005) 14255–14259. [DOI] [PMID: 16186480]
2.	Kelly, J., Jarrell, H., Millar, L., Tessier, L., Fiori, L.M., Lau, P.C., Allan, B. and Szymanski, C.M. Biosynthesis of the N-linked glycan in Campylobacter jejuni and addition onto protein through block transfer. J. Bacteriol. 188 (2006) 2427–2434. [DOI] [PMID: 16547029]

[EC 2.4.1.293 created 2012]