Article · Wikipedia archive · Last revised Jun 18, 2026

PFKFB2

6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 2 is an enzyme that in humans is encoded by the PFKFB2 gene.

Last revised
Jun 18, 2026
Read time
≈ 4 min
Length
890 w
Citations
11
Source
PFKFB2
Identifiers
AliasesPFKFB2, PFK-2/FBPase-2, 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 2
External IDsOMIM: 171835; MGI: 107815; HomoloGene: 88554; GeneCards: PFKFB2; OMA:PFKFB2 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001018053
NM_006212

NM_001162415
NM_001162416
NM_008825
NM_001368843

RefSeq (protein)

NP_001018063
NP_006203

NP_001155887
NP_001155888
NP_032851
NP_001355772

Location (UCSC)Chr 1: 207.03 – 207.08 MbChr 1: 130.62 – 130.66 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 2 is an enzyme that in humans is encoded by the PFKFB2 gene.5

The protein encoded by this gene is involved in both the synthesis and degradation of fructose-2,6-bisphosphate, a regulatory molecule that controls glycolysis in eukaryotes. The encoded protein 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. This protein 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. This enzyme functions as a homodimer. Two transcript variants encoding two different isoforms have been found for this gene.5

Interactions

PFKFB2 has been shown to interact with YWHAQ.6

References

References

  1. GRCh38: Ensembl release 89: ENSG00000123836Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000026409Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. "Entrez Gene: PFKFB2 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 2".
  6. Pozuelo Rubio M, Peggie Mark, Wong Barry H C, Morrice Nick, MacKintosh Carol (Jul 2003). "14-3-3s regulate fructose-2,6-bisphosphate levels by binding to PKB-phosphorylated cardiac fructose-2,6-bisphosphate kinase/phosphatase". EMBO J. 22 (14). England: 3514–23. doi:10.1093/emboj/cdg363. ISSN 0261-4189. PMC 165633. PMID 12853467.
Further reading

Further reading