IndraLab
Statements
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"AMSH-LP has no functional SBM or MIT (microtubule interacting and transport) domain, and therefore cannot bind to other components of the ESCRT machinery, but a host of experimental studies have shown that the STAM protein connected to AMSH in a more subtle manner and serves as an activator of this enzymatic process [ xref , xref ], with the UIM domain of STAM serving as an activator in interactions with the proximal Ub of Lys63-Ub 2 and AMSH interacting with the distal Ub."