Human alpha-galactosidase catalytic mechanism 1. Empty active site

alpha-L-fucose; 6-deoxy-alpha-L-galactopyranose; L-fucose; fucose

beta-D-galactose; D-galactose; galactose

N-acetyl-beta-D-glucosamine; 2-acetamido-2-deoxy-beta-D-glucose; 2-acetamido-2-deoxy-D-glucose; 2-acetamido-2-deoxy-glucose; N-ACETYL-D-GLUCOSAMINE

Catalytic mechanism of human alpha-galactosidase.

Alpha-D-galactoside galactohydrolase, Alpha-D-galactosidase A, Melibiase

LDNGLARTPTMGWLHWERFMCNLDCQEEPDSCISEKLFMEMAELMVSEGWKDAGYEYLCIDDCWMAPQRDSEGRLQADPQ
RFPHGIRQLANYVHSKGLKLGIYADVGNKTCAGFPGSFGYYDIDAQTFADWGVDLLKFDGCYCDSLENLADGYKHMSLAL
NRTGRSIVYSCEWPLYMWPFQKPNYTEIRQYCNHWRNFADIDDSWKSIKSILDWTSFNQERIVDVAGPGGWNDPDMLVIG
NFGLSWNQQVTQMALWAIMAAPLFMSNDLRHISPQAKALLQDKDVIAINQDPLGKQGYQLRQGDNFEVWERPLSGLAWAV
AMINRQEIGGPRSYTIAVASLGKGVACNPACFITQLLPVKRKLGFYEWTSRLRSHINPTGTVLLQLENTMQMSLKDLL

PEG4000, Ammonium Sulfate, Sodium Acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Human alpha-galactosidase mechanism 2. Substrate bound

Human alpha-galactosidase mechanism 3. Covalent intermediate

Human alpha-galactosidase mechanism 4. Product bound

HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS

GLYCOPROTEIN, CARBOHYDRATE-BINDING PROTEIN, GLYCOSIDASE, LYSOSOMAL ENZYME, (BETA/ALPHA)8 BARREL, Disease mutation, Disulfide bond, Hydrolase, Lysosome