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The hexosamine biosynthetic pathway (HBP) results in the production of UDP-N-acetylglucosamine (UDP-GlcNAc) and other nucleotide hexosamines. UDP-GlcNAc, the major product, is the unique donor for the O-linkage of a single N-acetylglucosamine molecule (O-GlcNAc) to many cytoplasmic and nuclear proteins. Upon entering the cell glucose is rapidly phosphorylated to glucose-6-phosphate which can be oxidized via glycolysis or the pentose phosphate shunt or stored as glycogen. In glycolysis, G6P

Pathway Diagram:

Ariadne Genomics Inc. pentose phosphate pathway glycogen biosynthetic pathway fructose-6-phosphate G-Thr G-Ser O-GlcNac proteins Uap1 Mgea5 Ogt Pgm3 Gnpnat1 Gfpt1 acetyl-CoA glucose ---> glycogen biosynthetic pathway glucose glucose ---> glycolysis pathway glycolysis pathway glucose ---> pentose phosphate pathway N-acetylglucosamine UTP N-acetyl glucosamine-1-phosphate N-acetyl glucosamine-6-phosphate L-glutamine glucosamine-6-P UTP ---> N-acetylglucosamine N-acetyl glucosamine-6-phosphate ---> N-acetyl glucosamine-1-phosphate fructose-6-phosphate ---> glucosamine-6-P glucosamine-6-P ---> N-acetyl glucosamine-6-phosphate acetyl-CoA ---> N-acetyl glucosamine-6-phosphate N-acetylglucosamine ---> O-GlcNac proteins O-GlcNac proteins ---> proteins GlcNAc removed L-glutamine ---> glucosamine-6-P N-acetyl glucosamine-1-phosphate ---> N-acetylglucosamine proteins GlcNAc removed

Genes in Pathway:

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hexosamine biosynthetic pathway term browser
Symbol Object Name GBrowse Chr Start Stop Reference
G Gfpt1 glutamine fructose-6-phosphate transaminase 1 GBrowse link 4 121,204,274 121,250,160 RGD:1625426
G Gnpnat1 glucosamine-phosphate N-acetyltransferase 1 GBrowse link 15 21,272,165 21,284,459 RGD:1625539
G Gpi glucose-6-phosphate isomerase GBrowse link 1 86,658,836 86,686,712 RGD:1625539
G Mgea5 meningioma expressed antigen 5 (hyaluronidase) GBrowse link 1 250,966,386 251,000,363 RGD:2311625
G Ogt O-linked N-acetylglucosamine (GlcNAc) transferase GBrowse link X 89,721,369 89,766,218 RGD:1625539
G Pgm3 phosphoglucomutase 3 GBrowse link 8 91,810,223 91,827,293 RGD:1625539
G Uap1 UDP-N-acteylglucosamine pyrophosphorylase 1 GBrowse link 13 85,953,072 85,987,137 RGD:1625539

Additional Elements in Pathway:

(includes Gene Groups, Small Molecules, Other Pathways..etc.)
Object TypePathway ObjectPathway Object Description
Gene GroupO-GlcNAcylated proteinsseveral targets of O-GlcNAcylation

Pathway Gene Annotations

Disease Annotations Associated with Genes in the hexosamine biosynthetic pathway
Pathway Annotations Associated with Genes in the hexosamine biosynthetic pathway

References Associated with the hexosamine biosynthetic pathway:

Ontology Path Diagram:

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