Table 1. Transcription regulatory properties of forkhead transcription factors.

Listed are forkhead factors for which evidence for transcriptional activation (+) or repression (−) is available (third column). Note that for some family members, both activation and repression have been reported (+/−). FoxH1 reportedly lacks any transcriptional activation properties and depends on interactions with Smad factors for target gene expression [24].

Forkhead	Activation (+) or repression (−)	Reference(s)
FoxA	+	[22,200,201]
FoxC1	+	[28]
FoxC2	+/−	[202,203]
FoxD1	+	[204]
FoxD2	+/−	[137,202]
FoxD3	−	[205]
FoxE1	−	[206]
FoxF1–FoxF2	+	[19,20]
FoxG1	−	[207]
FoxH1	+	[208]
FoxI1	+	[209]
FoxJ1–FoxJ2	+	[29,210]
FoxK1	−	[211]
FoxK2	+	[212]
FoxL2	−	[213]
FoxM1	+	[85]
FoxN1	+	[214]
FoxN3	−	[84]
FoxO1–FoxO6	+/−	[30,215,216]
FoxP1–FoxP4	−	[17,22,217]
FoxQ1	−	[218]