Rabbit anti-Human MGAT4B Polyclonal Antibody

Uniprot Id

Q9UQ53

Target Species

Human

Target Name

MGAT4B

Target Full Name

Alpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase B

Target Function

Glycosyltransferase that participates in the transfer of N-acetylglucosamine (GlcNAc) to the core mannose residues of N-linked glycans. Catalyzes the formation of the GlcNAcbeta1-4 branch on the GlcNAcbeta1-2Manalpha1-3 arm of the core structure of N-linked glycans. Essential for the production of tri- and tetra-antennary N-linked sugar chains. Has lower affinities for donors or acceptors than MGAT4A, suggesting that, under physiological conditions, it is not the main contributor in N-glycan biosynthesis.

Target Subcellular Location

Golgi apparatus membrane; Single-pass type II membrane protein.

Target Protein Families

Glycosyltransferase 54 family

Target Tissue Specificity

Widely expressed. Strongly overexpressed in pancreatic cancer.

Target Synonyms

3-D-mannoside beta-1; 3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase B; 4-N-acetylglucosaminyltransferase IVb; Alpha 1 3 mannosyl glycoprotein beta 1 4 N acetylglucosaminyltransferase; Alpha-1; Aminyltransferase; GlcNAc T IVb; GlcNAc-T IVb; GNT IV; GNT IVB; GnT-IVb; GNTIV; GNTIVB; Mannosyl (alpha 1 3) glycoprotein beta 1 4 N acetylglucosaminyltransferase isozyme B; MGAT 4B; mgat4b; MGT4B_HUMAN; N acetylglucosaminyltransferase IVb; N glycosyl oligosaccharide glycoprotein; N glycosyl oligosaccharide glycoprotein N acetylglucosaminyltransferase IVb; N-acetylglucosaminyltransferase IVb; N-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase IVb; UDP N acetylglucosamine alpha 1 3 D mannoside beta 1 4 N acetylglucosaminyltransferase IV; UDP N acetylglucosamine alpha 1 3 D mannoside beta 1 4 N acetylglucosaminyltransferase IVb; UDP-N-acetylglucosamine: alpha-1

Target Background

This gene encodes a key glycosyltransferase that regulates the formation of tri- and multiantennary branching structures in the Golgi apparatus. The encoded protein, in addition to the related isoenzyme A, catalyzes the transfer of N-acetylglucosamine (GlcNAc) from UDP-GlcNAc in a beta-1, 4 linkage to the Man-alpha-1, 3-Man-beta-1, 4-GlcNAc arm of R-Man-alpha-1, 6(GlcNAc-beta-1, 2-Man-alpha-1, 3)Man-beta-1, 4-GlcNAc-beta-1, 4-GlcNAc-beta-1-Asn. The encoded protein may play a role in regulating the availability of serum glycoproteins, oncogenesis, and differentiation.