2.4.99.21: dolichyl-phosphooligosaccharide-protein glycotransferase

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For detailed information about dolichyl-phosphooligosaccharide-protein glycotransferase, go to the full flat file.

Word Map on EC 2.4.99.21

2.4.99.21

cyclin-dependent

creatine

cystathionine

cell-cycle

retinoblastoma

homocysteine

p21cip1

beta-synthase

p57kip2

homocystinuria

ckis

checkpoint

d-type

p18ink4c

mthfr

palbociclib

cdk-dependent

flavopiridol

anaphase

olomoucine

e-cdk2

cyclin-cdk

r-roscovitine

Reaction

an archaeal dolichyl phosphooligosaccharide

a glycoprotein with the oligosaccharide chain attached by N-beta-D-glycosyl linkage to a protein L-asparagine

Synonyms

AF_0380, AglB, AglB protein, AglB-L, aglB1, AlgB, archaeal oligosaccharyl transferase, dolichyl-monophosphooligosaccharide-protein glycotransferase, Mv1749, MVO1749

ECTree

2 Transferases

2.4 Glycosyltransferases

2.4.99 Transferring other glycosyl groups

2.4.99.21 dolichyl-phosphooligosaccharide-protein glycotransferase

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Results	in table
3690	AA Sequence
2	Cloned(Commentary)
2	Crystallization (Commentary)
22	General Information
2	Localization
3	Natural Substrates/ Products (Substrates)
30	Organism
2	Pathway
1	PDB ID
1	pH Optimum
1	Posttranslational Modification
3	Purification (Commentary)
1	Reaction
28	Reference
12	Substrates and Products (Substrate)
4	Subunits
30	Synonyms
1	Systematic Name

Systematic Name

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Systematic Name on EC 2.4.99.21 - dolichyl-phosphooligosaccharide-protein glycotransferase

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dolichyl-phosphooligosaccharide:protein-L-asparagine N-beta-D-oligosaccharidotransferase

The enzyme, characterized from the archaea Methanococcus voltae and Haloferax volcanii, transfers a glycan component from dolichyl phosphooligosaccharide to external proteins. It is different from EC 2.4.99.18, dolichyl-diphosphooligosaccharide-protein glycotransferase, which uses dolichyl diphosphate as carrier compound in bacteria and eukaryotes. The enzyme participates in the N-glycosylation of proteins in some archaea. It requires Mn2+. Dolichol used by archaea is different from that used by eukaryotes. It is much shorter (C55-C60), it is alpha,omega-saturated and it may have additional unsaturated positions in the chain.