Adenomatous polyposis coli protein

Definition:

Tumor suppressor. Promotes rapid degradation of CTNNB1 and participates in Wnt signaling as a negative regulator. APC activity is correlated with its phosphorylation state. Activates the GEF activity of SPATA13 and ARHGEF4. Plays a role in hepatocyte growth factor (HGF)-induced cell migration. Required for MMP9 up-regulation via the JNK signaling pathway in colorectal tumor cells. Acts as a mediator of ERBB2-dependent stabilization of microtubules at the cell cortex. It is required for the localization of MACF1 to the cell membrane and this localization of MACF1 is critical for its function in microtubule stabilization.

References:

[1]. Y Kawasaki, et al. Asef, a link between the tumor suppressor APC and G-protein signaling. Science. 2000 Aug 18;289(5482):1194-7. [Content Brief]

[2]. Y Kawasaki, et al. Identification and characterization of Asef2, a guanine-nucleotide exchange factor specific for Rac1 and Cdc42. Oncogene. 2007 Dec 6;26(55):7620-267. [Content Brief]

[3]. M Sagara, et al. Asef2 and Neurabin2 cooperatively regulate actin cytoskeletal organization and are involved in HGF-induced cell migration. Oncogene. 2009 Mar 12;28(10):1357-65. [Content Brief]

[4]. Kossay Zaoui, et al. ErbB2 receptor controls microtubule capture by recruiting ACF7 to the plasma membrane of migrating cells. Proc Natl Acad Sci U S A. 2010 Oct 26;107(43):18517-22. [Content Brief]

[5]. Yoshihiro Kawasaki, et al. The adenomatous polyposis coli-associated exchange factors Asef and Asef2 are required for adenoma formation in Apc(Min/+)mice. EMBO Rep. 2009 Dec;10(12):1355-62. [Content Brief]

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