Fig. 1From: STAT3, stem cells, cancer stem cells and p63Schematic overview of STAT3α and β isoforms – NTD, NH2-terminal domain; CCD, coiled coil domain; DBD, DNA-binding domain; LD, linker domain; SH2 domain; TAD, transcription activation domain. Figure shows also two key phosphorylation sites, tyrosine 705 and serine 727Back to article page