Overview:

PFKFB2 is involved in both the synthesis and degradation of fructose-2,6-bisphosphate, a regulatory molecule that controls glycolysis in eukaryotes. PFKFB2 has a 6-phosphofructo-2-kinase activity that catalyzes the synthesis of fructose-2,6-bisphosphate, and a fructose-2,6-biphosphatase activity that catalyzes the degradation of fructose-2,6-bisphosphate. PFKFB2 regulates fructose-2,6-bisphosphate levels in the heart, while a related enzyme encoded by a different gene regulates fructose-2,6-bisphosphate levels in the liver and muscle (1). PFKFB2 also functions as a homodimer. PFKFB2 play an important role in the regulation of muscle glycolysis during the first moments of exercise (2).

Gene Aliases:

PFK-2/FBPase-2

Genbank Number:

NM_006212

References:

1. Hilliker, C. E. et.al: Human and rat chromosomal localization of two genes for 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase by analysis of somatic cell hybrids and in situ hybridization. Genomics 10: 867-873, 1991.

2. Rovira J. et.al: Upregulation of heart PFK-2/FBPase-2 isozyme in skeletal muscle after persistent contraction. Pflugers Arch. 2012 Apr;463(4):603-13. doi: 10.1007/s00424-011-1068-5