The subcellular localization of PAK-2 is controlled by nuclear localization and nuclear export signal motifs (Jakobi et al.,2003). The regulatory domain contains a nuclear export signal motif that prevents the nuclear accumulation of full-length PAK-2. The activating proteolytic cleavage disrupts the nuclear export signal in PAK-2 and removes most its regulatory domain. The resulting activated PAK-2p34 fragment contains a nuclear localization signal and translocates to and is retained in the nucleus (Jakobi et al.,2003).
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