KEGG   PATHWAY: dre00510Help
Entry
dre00510                    Pathway                                
Name
N-Glycan biosynthesis - Danio rerio (zebrafish)
Description
N-glycans or asparagine-linked glycans are major constituents of glycoproteins in eukaryotes. N-glycans are covalently attached to asparagine with the consensus sequence of Asn-X-Ser/Thr by an N-glycosidic bond, GlcNAc b1- Asn. Biosynthesis of N-glycans begins on the cytoplasmic face of the ER membrane with the transferase reaction of UDP-GlcNAc and the lipid-like precursor P-Dol (dolichol phosphate) to generate GlcNAc a1- PP-Dol. After sequential addition of monosaccharides by ALG glycosyltransferases [MD:M00055], the N-glycan precursor is attached by the OST (oligosaccharyltransferase) complex to the polypeptide chain that is being synthesized and translocated through the ER membrane. The protein-bound N-glycan precursor is subsequently trimmed, extended, and modified in the ER and Golgi by a complex series of reactions catalyzed by membrane-bound glycosidases and glycosyltransferases. N-glycans thus synthesized are classified into three types: high-mannose type, complex type, and hybrid type. Defects in N-glycan biosynthesis lead to a variety of human diseases known as congenital disorders of glycosylation [DS:H00118 H00119].
Class
Metabolism; Glycan biosynthesis and metabolism
BRITE hierarchy
Pathway map
N-Glycan biosynthesis
dre00510

All organismsOrtholog table
Module
N-glycan precursor biosynthesis [PATH:dre00510]
Oligosaccharyltransferase [PATH:dre00510]
N-glycan precursor trimming [PATH:dre00510]
N-glycan biosynthesis, high-mannose type [PATH:dre00510]
N-glycan biosynthesis, complex type [PATH:dre00510]
Other DBs
BSID: 
GO: 
Organism
Danio rerio (zebrafish) [GN:dre]
Gene
799960  
dolk; dolichol kinase [KO:K00902] [EC:2.7.1.108]
566539  
dpagt1; dolichyl-phosphate (UDP-N-acetylglucosamine) N-acetylglucosaminephosphotransferase 1 (GlcNAc-1-P transferase) [KO:K01001] [EC:2.7.8.15]
751635  
alg5; asparagine-linked glycosylation 5 homolog (yeast, dolichyl-phosphate beta-glucosyltransferase) [KO:K00729] [EC:2.4.1.117]
436733  
zgc:92907; K07432 beta-1,4-N-acetylglucosaminyltransferase [EC:2.4.1.141] [KO:K07432] [EC:2.4.1.141]
450072  
alg14; asparagine-linked glycosylation 14 homolog (S. cerevisiae) [KO:K07441] [EC:2.4.1.141]
445202  
dpm1; dolichyl-phosphate mannosyltransferase polypeptide 1, catalytic subunit [KO:K00721] [EC:2.4.1.83]
796295  
dpm2; dolichol-phosphate (beta-D) mannosyltransferase 2 [KO:K09658]
393782  
dpm3; dolichyl-phosphate mannosyltransferase polypeptide 3 [KO:K09659]
334161  
alg1; asparagine-linked glycosylation 1 homolog (yeast, beta-1,4-mannosyltransferase) [KO:K03842] [EC:2.4.1.142]
403068  
alg2; asparagine-linked glycosylation 2 homolog (S. cerevisiae, alpha-1,3-mannosyltransferase) [KO:K03843] [EC:2.4.1.257 2.4.1.132]
407614  
alg11; asparagine-linked glycosylation 11, alpha-1,2-mannosyltransferase [KO:K03844] [EC:2.4.1.131]
559873  
protein RFT1 homolog; K06316 oligosaccharidyl-lipid flippase family [KO:K06316]
553725  
alg3; asparagine-linked glycosylation 3 homolog (S. cerevisiae, alpha-1,3-mannosyltransferase) [KO:K03845] [EC:2.4.1.258]
393598  
alg9; asparagine-linked glycosylation 9 homolog (S. cerevisiae, alpha- 1,2-mannosyltransferase) [KO:K03846] [EC:2.4.1.261 2.4.1.259]
569494  
alg12; asparagine-linked glycosylation 12 homolog (yeast, alpha-1,6-mannosyltransferase) [KO:K03847] [EC:2.4.1.260]
445327  
alg6; asparagine-linked glycosylation 6 homolog (S. cerevisiae, alpha-1,3-glucosyltransferase) [KO:K03848] [EC:2.4.1.267]
327601  
alg8; asparagine-linked glycosylation 8 homolog (yeast, alpha-1,3-glucosyltransferase) [KO:K03849] [EC:2.4.1.265]
alpha-1; K03850 alpha-1,2-glucosyltransferase [EC:2.4.1.256] [KO:K03850] [EC:2.4.1.256]
266797  
itm1; integral membrane protein 1 [KO:K07151] [EC:2.4.99.18]
325561  
rpn1; ribophorin I [KO:K12666]
335985  
rpn2; ribophorin II [KO:K12667]
566527  
dad1; defender against cell death 1 [KO:K12668]
553582  
tusc3; tumor suppressor candidate 3 [KO:K12669]
406408  
ddost; dolichyl-diphosphooligosaccharide-protein glycosyltransferase [KO:K12670]
474331  
dolpp1; dolichyl pyrophosphate phosphatase 1 [KO:K07252] [EC:3.6.1.43]
567913  
mogs; mannosyl-oligosaccharide glucosidase [KO:K01228] [EC:3.2.1.106]
ganab; glucosidase, alpha [KO:K05546] [EC:3.2.1.84]
556237  
man1b1; mannosidase, alpha, class 1B, member 1 [KO:K01230] [EC:3.2.1.113]
562592  
endoplasmic reticulum mannosyl-oligosaccharide 1; K01230 mannosyl-oligosaccharide alpha-1,2-mannosidase [EC:3.2.1.113] [KO:K01230] [EC:3.2.1.113]
566078  
man1a1; mannosidase, alpha, class 1A, member 1 [KO:K01230] [EC:3.2.1.113]
335538  
fj20e02; wu:fj20e02 [KO:K01230] [EC:3.2.1.113]
393649  
mgat1a; mannosyl (alpha-1,3-)-glycoprotein beta-1,2-N-acetylglucosaminyltransferase a [KO:K00726] [EC:2.4.1.101]
558524  
mgat1b; mannosyl (alpha-1,3-)-glycoprotein beta-1,2-N-acetylglucosaminyltransferase b [KO:K00726] [EC:2.4.1.101]
man2a2; mannosidase, alpha, class 2A, member 2 [KO:K01231] [EC:3.2.1.114]
mgat2; mannosyl (alpha-1,6-)-glycoprotein beta-1,2-N-acetylglucosaminyltransferase [KO:K00736] [EC:2.4.1.143]
797512  
fut8; fucosyltransferase 8 (alpha (1,6) fucosyltransferase) [KO:K00717] [EC:2.4.1.68]
768123  
zgc:154116; K07966 beta-1,4-galactosyltransferase 1 [EC:2.4.1.22 2.4.1.90 2.4.1.38 2.4.1.-] [KO:K07966] [EC:2.4.1.- 2.4.1.38 2.4.1.90 2.4.1.22]
550425  
b4galt1; UDP-Gal:betaGlcNAc beta 1,4- galactosyltransferase, polypeptide 1 [KO:K07966] [EC:2.4.1.- 2.4.1.38 2.4.1.90 2.4.1.22]
novel protein similar to vertebrate UDP-Gal:betaGlcNAc beta 1; K07967 beta-1,4-galactosyltransferase 2 [EC:2.4.1.22 2.4.1.90 2.4.1.38 2.4.1.-] [KO:K07967] [EC:2.4.1.- 2.4.1.38 2.4.1.90 2.4.1.22]
556544  
fd56f09; si:dkey-199f5.8 [KO:K07968] [EC:2.4.1.- 2.4.1.38 2.4.1.90]
561756  
beta-1; K07968 beta-1,4-galactosyltransferase 3 [EC:2.4.1.90 2.4.1.38 2.4.1.-] [KO:K07968] [EC:2.4.1.- 2.4.1.38 2.4.1.90]
445376  
st6gal1; ST6 beta-galactosamide alpha-2,6-sialyltranferase 1 [KO:K00778] [EC:2.4.99.1]
403116  
st6gal2; ST6 beta-galactosamide alpha-2,6-sialyltranferase 2 [KO:K00779] [EC:2.4.99.1]
570828  
beta-1; K00737 beta-1,4-mannosyl-glycoprotein beta-1,4-N-acetylglucosaminyltransferase [EC:2.4.1.144] [KO:K00737] [EC:2.4.1.144]
553676  
mgat3; mannosyl (beta-1,4-)-glycoprotein beta-1,4-N-acetylglucosaminyltransferase [KO:K00737] [EC:2.4.1.144]
431727  
mgat4b; mannosyl (alpha-1,3-)-glycoprotein beta-1,4-N-acetylglucosaminyltransferase, isozyme B [KO:K00738] [EC:2.4.1.145]
563038  
mgat4a; mannosyl (alpha-1,3-)-glycoprotein beta-1,4-N-acetylglucosaminyltransferase, isozyme A [KO:K00738] [EC:2.4.1.145]
724006  
mgat5; mannoside acetylglucosaminyltransferase 5 [KO:K00744] [EC:2.4.1.155]
alpha-1; K13748 alpha-1,3-mannosylglycoprotein beta-1,4-N-acetylglucosaminyltransferase C [EC:2.4.1.201 2.4.1.145] [KO:K13748] [EC:2.4.1.145 2.4.1.201]
Compound
C00096  
GDP-mannose
C00110  
Dolichyl phosphate
C00381  
Dolichol
C00621  
Dolichyl diphosphate
C01246  
Dolichyl beta-D-glucosyl phosphate
C03021  
Protein asparagine
C03862  
Dolichyl phosphate D-mannose
G00001  
N-Acetyl-D-glucosaminyldiphosphodolichol
G00002  
N,N'-Chitobiosyldiphosphodolichol
G00003  
 
G00004  
 
G00005  
 
G00006  
 
G00007  
 
G00008  
 
G00009  
 
G00010  
 
G00011  
 
G00012  
 
G00013  
 
G00014  
 
G00015  
 
G00016  
 
G00017  
 
G00018  
DS 3
G00019  
 
G00020  
 
G00021  
 
G00022  
 
G00171  
 
G10526  
 
G10595  
 
G10596  
 
G10597  
 
G10598  
 
G10599  
 
Reference
PMID:9111134
  Authors
Schutzbach JS.
  Title
The role of the lipid matrix in the biosynthesis of dolichyl-linked oligosaccharides.
  Journal
Glycoconj J 14:175-82 (1997)
Reference
  Authors
Oriol R, Martinez-Duncker I, Chantret I, Mollicone R, Codogno P.
  Title
Common origin and evolution of glycosyltransferases using Dol-P-monosaccharides as donor substrate.
  Journal
Mol Biol Evol 19:1451-63 (2002)
Reference
  Authors
Thiel C, Schwarz M, Peng J, Grzmil M, Hasilik M, Braulke T, Kohlschutter A, von Figura K, Lehle L, Korner C.
  Title
A new type of congenital disorders of glycosylation (CDG-Ii) provides new insights into the early steps of dolichol-linked oligosaccharide biosynthesis.
  Journal
J Biol Chem 278:22498-505 (2003)
Reference
  Authors
Cipollo JF, Trimble RB, Chi JH, Yan Q, Dean N.
  Title
The yeast ALG11 gene specifies addition of the terminal alpha 1,2-Man to the Man5GlcNAc2-PP-dolichol N-glycosylation intermediate formed on the cytosolic side of the endoplasmic reticulum.
  Journal
J Biol Chem 276:21828-40 (2001)
Reference
  Authors
Frank CG, Aebi M.
  Title
ALG9 mannosyltransferase is involved in two different steps of lipid-linked oligosaccharide biosynthesis.
  Journal
Glycobiology 15:1156-63 (2005)
Reference
  Authors
O'Reilly MK, Zhang G, Imperiali B.
  Title
In vitro evidence for the dual function of Alg2 and Alg11: essential mannosyltransferases in N-linked glycoprotein biosynthesis.
  Journal
Biochemistry 45:9593-603 (2006)
KO pathway
 
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