Protein Structure - PDB UniProt ID PDB ID Strain Moleculel Fragment P49768 5fn4 B POLY ALA CHAIN P49768 4uis B LYSOZYME P49768 2kr6 A PRESENILIN-1 PRESENILIN-1 CTF SUBUNIT, UNP RESIDUES 292-467 P49768 5fn5 B GAMMA-SECRETASE SUBUNIT PEN-2 P49768 5fn3 B POLY ALA CHAIN P49768 5fn2 B GAMMA-SECRETASE SUBUNIT PEN-2