AKT1 phosphorylates AKT1S1 (PRAS40, Proline Rich Akt Substrate 40 kDa) at Thr-246. AKT1S1 is an inhibitory accessory protein of mTORC1. Phosphorylation of AKT1S1 by AKT releases the inhibition of mTORC1.
Takehana, K, Yonezawa, K, Tanimura, K, Oshiro, N, Miyamoto, T, Takahashi, R, Avruch, J, Nakashima, A, Hara, K, Yoshino, K, Kikkawa, U, Eguchi, S
Harris, TE, Lawrence JC, Jr, Wang, L
Kovacina, KS, Roth, RA, Schaefer, E, Birnbaum, MJ, Bae, SS, Park, GY, Guzzetta, AW
Kim, DH, Bandhakavi, S, Griffin, TJ, Lee, SI, Vander Haar, E
Kang, SA, Sancak, Y, Thoreen, CC, Spooner, E, Lindquist, RA, Peterson, TR, Sabatini, DM, Carr, SA
protein serine/threonine kinase activity of p-T308,S473-AKT1 [plasma membrane]
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