Name

CASTOR2 Gene

cytosolic arginine sensor for mTORC1 subunit 2

Enables identical protein binding activity. Involved in negative regulation of TORC1 signaling. Located in GATOR2 complex and cytosol. [provided by Alliance of Genome Resources, Mar 2025]

CASTOR1 Gene

cytosolic arginine sensor for mTORC1 subunit 1

Enables several functions, including arginine binding activity; identical protein binding activity; and protein sequestering activity. Involved in cellular response to L-arginine; cellular response to amino acid starvation; and regulation of TORC1 signaling. Located in GATOR2 complex and cytosol. [provided by Alliance of Genome Resources, Mar 2025]

SAMTOR Gene

S-adenosylmethionine sensor upstream of mTORC1

Enables S-adenosyl-L-methionine binding activity. Involved in cellular response to amino acid starvation; cellular response to methionine; and positive regulation of TORC1 signaling. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Mar 2025]