Undecaprenyl-diphosphooligosaccharide-protein glycotransferase (, ''PglB'') is an
enzyme
Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. A ...
with
systematic name A systematic name is a name given in a systematic way to one unique group, organism, object or chemical substance, out of a specific population or collection. Systematic names are usually part of a nomenclature.
A semisystematic name or semitrivial ...
'.
This enzyme
catalyses the following
chemical reaction
A chemical reaction is a process that leads to the IUPAC nomenclature for organic transformations, chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the pos ...
: +
roteinL-asparagine
+ a glycoprotein with the oligosaccharide chain attached by N-beta-D-glycosyl linkage to protein L-
asparagine
Asparagine (symbol Asn or N) is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH form under biological conditions), an α-carboxylic acid group (which is in the depro ...
This is a bacterial enzyme that is isolated from ''
Campylobacter jejuni
''Campylobacter jejuni'' () is a species of pathogenic bacteria, one of the most common causes of food poisoning in Europe and in the US. The vast majority of cases occur as isolated events, not as part of recognized outbreaks. Active surveillan ...
'' and ''
Campylobacter lari
''Campylobacter lari'' (formerly ''Campylobacter laridis'') is a species of nalidixic acid-resistant, thermophilic, microaerophilic bacteria first isolated from human faeces. It shows anaerobic growth in the presence of trimethylamine N-oxide h ...
''.
References
External links
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EC 2.4.99