FUT5

FUT5 (Fucosyltransferase 5) is a Protein Coding gene. Among its related pathways are Metabolism and Glycosphingolipid biosynthesis - lacto and neolacto series. Gene Ontology (GO) annotations related to this gene include fucosyltransferase activity and 3-galactosyl-N-acetylglucosaminide 4-alpha-L-fucosyltransferase activity. An important paralog of this gene is FUT3.

Full Name

fucosyltransferase 5 (alpha (1,3) fucosyltransferase)

Function

Catalyzes preferentially the transfer of L-fucose, from a guanosine diphosphate-beta-L-fucose, to the N-acetyl-beta-D-glucosamine (GlcNAc) of an N-acetyllactosamine unit (type 2 chain) of an oligosacccharide, or a glycoprotein- and a glycolipid-linked N-acetyllactosamine unit via an alpha (1,3) linkage and participates in the surface espression of VIM-2, Lewis X/SSEA-1 and sialyl Lewis X antigens (PubMed:14718375, PubMed:1740457, PubMed:7721776, PubMed:9737988, PubMed:17604274, PubMed:9737989).

Preferentially transfers fucose to the GlcNAc of an internal N-acetyllactosamine unit of a poly-N-acetyllactosamine chain acceptor substrate (PubMed:7721776, PubMed:17604274).

Also catalyzes to a lesser extend the transfer of L-fucose to the GlcNAc of a type 1 (beta-D-galactosyl-(1->3)-N-acetyl-beta-D-glucosaminyl) or H-type 1 (alpha-L-Fuc-(1->2)-beta-D-Gal-(1->3)-D-GlcNAc) chain oligosacccharide via an alpha (1,4) linkage (PubMed:14718375, PubMed:1740457, PubMed:7721776, PubMed:9737988, PubMed:17604274).

Preferentially catalyzes sialylated type 2 oligosacccharide acceptors over neutral type 2 or H type 2 (alpha-L-Fuc-(1->2)-beta-D-Gal-(1->4)-D-GlcNAc) oligosacccharide acceptors (PubMed:1740457, PubMed:9737989).

Lactose-based structures are also acceptor substrates (PubMed:1740457, PubMed:7721776).

Biological Process

Carbohydrate metabolic process Source: ProtInc
Ceramide metabolic process Source: UniProtKB
Fucosylation Source: GO_Central
L-fucose catabolic process Source: UniProtKB
Oligosaccharide biosynthetic process Source: Reactome
Oligosaccharide metabolic process Source: UniProtKB
Protein glycosylation Source: UniProtKB

Cellular Location

Golgi stack membrane. Membrane-bound form in trans cisternae of Golgi.

Topology

Cytoplasmic: 1-15
Helical: 16-34
Lumenal: 35-374