Summary

Name FOXK2
Full Name Forkhead box protein K2
Synonyms Cellular transcription factor ILF-1, FOXK1, Interleukin enhancer-binding factor 1 | ILF, ILF1
Primary ID Q01167
Links - -
Type protein
Relations 5
Function Transcriptional regulator involved in different processes such as glucose metabolism, aerobic glycolysis and autophagy (By similarity). Recognizes and binds the forkhead DNA sequence motif (5'-GTAAACA-3') and can both act as a transcription activator or repressor, depending on the context (PubMed:22083952, PubMed:25451922). Together with FOXK1, acts as a key regulator of metabolic reprogramming towards aerobic glycolysis, a process in which glucose is converted to lactate in the presence of oxygen (By similarity). Acts by promoting expression of enzymes for glycolysis (such as hexokinase-2 (HK2), phosphofructokinase, pyruvate kinase (PKLR) and lactate dehydrogenase), while suppressing further oxidation of pyruvate in the mitochondria by up-regulating pyruvate dehydrogenase kinases PDK1 and PDK4 (By similarity). Probably plays a role in gluconeogenesis during overnight fasting, when lactate from white adipose tissue and muscle is the main substrate (By similarity). Together with FOXK1, acts as a negative regulator of autophagy in skeletal muscle

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Modifications Tables

Relations

Regulator Mechanism target score
+ up-regulates img/direct-activation.png phosphorylation FOXK2 0.376
Publications: 2 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation FOXK2 0.38
Publications: 2 Organism: Homo Sapiens
+ up-regulates quantity by expression img/direct-activation.png transcriptional regulation FOXK2 0.293
Publications: 1 Organism: Homo Sapiens