UDP-N-acetylglucosamine transferase subunit ALG13 homolog, also known as asparagine-linked glycosylation 13 homolog, is an enzyme

Enzyme

Enzymes are proteins that catalyze chemical reactions. In enzymatic reactions, the molecules at the beginning of the process, called substrates, are converted into different molecules, called products. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates...

 that in humans is encoded by the ALG13 gene

Gene

A gene is a molecular unit of heredity of a living organism. It is a name given to some stretches of DNA and RNA that code for a type of protein or for an RNA chain that has a function in the organism. Living beings depend on genes, as they specify all proteins and functional RNA chains...

.

Function

The protein encoded by this gene is a subunit of a bipartite UDP-N-acetylglucosamine transferase. It heterodimerizes with asparagine-linked glycosylation 14 (ALG14

ALG14

UDP-N-acetylglucosamine transferase subunit ALG14 homolog is a protein that in humans is encoded by the ALG14 gene.Asparagine -glycosylation is an essential modification that regulates protein folding and stability. ALG13 and ALG14 constitute the UDP-GlcNAc transferase, which catalyzes a key step...

) homolog to form a functional UDP-GlcNAc glycosyltransferase that catalyzes the second sugar addition of the highly conserved oligosaccharide precursor in endoplasmic reticulum

Endoplasmic reticulum

The endoplasmic reticulum is an organelle of cells in eukaryotic organisms that forms an interconnected network of tubules, vesicles, and cisternae...

N-linked glycosylation.