Protein
AMSH-like protease sst2
Organism
Schizosaccharomyces pombe (strain 972 / ATCC 24843)
Function
Zinc metalloprotease that specifically cleaves 'Lys-63'-linked polyubiquitin chains. Does not cleave 'Lys-48'-linked polyubiquitin chains (By similarity). Plays a role in the multivesicular body (MVB) sorting pathway. Required for ubiquitin-dependent sorting of proteins into the endosome and subsequent trafficking to the vacuole. May regulate MVB sorting through deubiquitination of ubiquitinated ESCRT proteins.
Similarity
Belongs to the peptidase M67C family.
Sequence
MNILQGSEAPLSYEEIASRAGAFDFNKNIPLKNWLRTSTTISKQAHVYVSEHDYSNGVFLLFRYCELFMKCQKHPDAAAYKKELFDYYQGVRNALEEIELIKPIVKEQYEQYQCQKNDLDDLKKLSMKDSQPSLEKPVSYVDEPILEQWALSDLQILPPSSTDLLSPDSQKLSKSSSDLPQFDYPSLNSSPTFNSNLPISSSRFEKTSLSDSKLVSPEPLDDNKDIQFIKKPIYTRTSEPRPKPAGTFKIHAYTEGGKPLRTIYLPKLLKKVFLDVVKPNTKKNLETCGILCGKLRQNAFFITHLVIPLQEATSDTCGTTDEASLFEFQDKHNLLTLGWIHTHPTQTCFMSSVDLHTHCSYQLMLPEAIAIVMAPSKNTSGIFRLLDPEGLQTIVKCRKPGLFHPHEGKVYTMVAQPGHVREINSKLQVVDLRVK