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Psn

Gene
Psn
Protein
Presenilin homolog
Organism
Drosophila melanogaster
Length
541 amino acids
Function
Probable catalytic subunit of the gamma-secretase complex, an endoprotease complex that catalyzes the intramembrane cleavage of integral membrane proteins such as Notch receptor. Required for S3 cleavage of Notch, which releases activated Notch protein from the cell membrane. Involved in the patterning of the optic lobes.
Similarity
Belongs to the peptidase A22A family.
Mass
59.304 kDa
Sequence
MAAVNLQASCSSGLASEDDANVGSQIGAAERLERPPRRQQQRNNYGSSNQDQPDAAILAVPNVVMREPCGSRPSRLTGGGGGSGGPPTNEMEEEQGLKYGAQHVIKLFVPVSLCMLVVVATINSISFYNSTDVYLLYTPFHEQSPEPSVKFWSALANSLILMSVVVVMTFLLIVLYKKRCYRIIHGWLILSSFMLLFIFTYLYLEELLRAYNIPMDYPTALLIMWNFGVVGMMSIHWQGPLRLQQGYLIFVAALMALVFIKYLPEWTAWAVLAAISIWDLIAVLSPRGPLRILVETAQERNEQIFPALIYSSTVVYALVNTVTPQQSQATASSSPSSSNSTTTTRATQNSLASPEAAAASGQRTGNSHPRQNQRDDGSVLATEGMPLVTFKSNLRGNAEAAGFTQEWSANLSERVARRQIEVQSTQSGNAQRSNEYRTVTAPDQNHPDGQEERGIKLGLGDFIFYSVLVGKASSYGDWTTTIACFVAILIGLCLTLLLLAIWRKALPALPISITFGLIFCFATSAVVKPFMEDLSAKQVFI