RasGRP1 (Roose et al. 2007) and RasGRP3 (Ohba et al. 2000, Yamashita et al. 2000, Rebhun et al. 2000, Lorenzo et al. 2001) catalyze the exchange of GDP for GTP bound by RAS.
Ho, M, Roose, JP, Weiss, A, Kurosaki, T, Mollenauer, M
Castro, AF, Rebhun, JF, Quilliam, LA
Matsuda, M, Mochizuki, N, Hattori, S, Chan, AM, Ohba, Y, Nagashima, K, Schrader, JW, Yamashita, S
Okada, Y, Matsuda, M, Sawa, H, Tobiume, M, Mochizuki, N, Ohba, Y, Nagashima, K, Yamashita, S
Stone, JC, Garfield, SH, Kung, JW, Blumberg, PM, Lorenzo, PS, Bottorff, DA
guanyl-nucleotide exchange factor activity of p-RASGRP1,3:DAG [plasma membrane]
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