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Proteins/UNIPROT:Q9UM21
Glycosyltransferase that catalyze the transfer of GlcNAc from UDP-GlcNAc to the GlcNAcbeta1-2Manalpha1-3 arm of the core structure of N-linked glycans through a beta1-4 linkage and participates in the production of tri- and tetra-antennary N-linked sugar chains. Involved in glucose transport by mediating SLC2A2/GLUT2 glycosylation, thereby controlling cell-surface expression of SLC2A2 in pancreatic beta cells (By similarity)..
Function from UniProtKB (Q9UM21), read 2026-09-23. CC BY 4.0.
Curated compounds routed: 0
83 statements
83 statements · 8 reference databases · Subject: MGAT4A · Sources: Bgee, Hetionet, Human Protein Atlas, Human-GEM, Reactome, Rhea, UniProt, WikiPathways
9 reactions
MAM02507g+CHEBI:16264MAM01868g+proton+UDP
Catalysed by MGAT4A or MGAT4B or MGAT4C
Reaction pageLeft to rightBalance undeterminableEC 2.4.1.145Golgi apparatus
Human-GEM MAR07327CC BY 4.0Reference data
MAM02507g+CHEBI:16264proton+MAM02512g+UDP
Catalysed by MGAT4A
6 names
Resolves to: MGAT4A
Reaction pageLeft to rightBalance undeterminableEC 2.4.1.145Golgi apparatus
Human-GEM MAR08693CC BY 4.0Reference data
N(4)-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein]+UDP-N-acetyl-alpha-D-glucosamineN(4)-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein]+UDP+hydron
Catalysed by MGAT4C or MGAT4A or MGAT4B
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:16057CC BY 4.0Reference data
an N(4)-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein]+UDP-N-acetyl-alpha-D-glucosaminean N(4)-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein]+UDP+hydron
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:69615CC BY 4.0Reference data
an N(4)-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein]+UDP-N-acetyl-alpha-D-glucosaminean N(4)-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein]+UDP+hydron
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:69619CC BY 4.0Reference data
an N(4)-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-[alpha-L-Fuc-(1->6)]-beta-D-GlcNAc}-L-asparaginyl-[protein]+UDP-N-acetyl-alpha-D-glucosamineN(4)-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-[alpha-L-Fuc-(1->6)]-beta-D-GlcNAc}-asparaginyl-[protein]+UDP+hydron
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:69623CC BY 4.0Reference data
an N(4)-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein]+UDP-N-acetyl-alpha-D-glucosaminean N(4)-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein]+UDP+hydron
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:69627CC BY 4.0Reference data
N(4)-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-{alpha-D-Man-(1->6)}-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein]+UDP-N-acetyl-alpha-D-glucosamineN(4)-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-{alpha-D-Man-(1->6)}-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein]+UDP+hydron
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:69631CC BY 4.0Reference data
N(4)-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein]+UDP-N-acetyl-alpha-D-glucosamineN(4)-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein]+UDP+hydron
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:69635CC BY 4.0Reference data