FEATURES

FAMILY

DESCRIPTION

Also known as CRTC2_HUMAN, CRTC2, TORC2. Transcriptional coactivator for CREB1 which activates transcription through both consensus and variant cAMP response element (CRE) sites. Acts as a coactivator, in the SIK/TORC signaling pathway, being active when dephosphorylated and acts independently of CREB1 'Ser-133' phosphorylation. Enhances the interaction of CREB1 with TAF4. Regulates gluconeogenesis as a component of the LKB1/AMPK/TORC2 signaling pathway. Regulates the expression of specific genes such as the steroidogenic gene, StAR. Potent coactivator of PPARGC1A and inducer of mitochondrial biogenesis in muscle cells. Also coactivator for TAX activation of the human T-cell leukemia virus type 1 (HTLV-1) long terminal repeats (LTR). Binds, as a tetramer, through its N-terminal region, with the bZIP domain of CREB1 (PubMed:15454081). 'Arg-314' in the bZIP domain of CREB1 is essential for this interaction (PubMed:15454081). Interaction, via its C-terminal, with TAF4, enhances recruitment of TAF4 to CREB1 (PubMed:15454081). Interacts with SIK2 (PubMed:15454081). Interacts with 14-3-3 proteins, YWHAB and YWHAG (PubMed:15454081, PubMed:18626018). Interacts (probably when phosphorylated at Ser-171) with YWHAE (PubMed:30611118). Interacts with calmodulin-dependent catalytic subunit PPP3CA/calcineurin A (PubMed:15454081, PubMed:30611118). Interaction with COP1 mediates nuclear export and degradation of CRTC2 (By similarity).

EXTERNAL LINKS

CRTC2

CREB-regulated transcription coactivator 2

CRTC2

Molecular Synopsis