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- *******************************************
- * Alpha-L-fucosidase putative active site *
- *******************************************
-
- Alpha-L-fucosidase (EC 3.2.1.51) [1] is a lysosomal enzyme responsible for
- hydrolyzing the alpha-1,6-linked fucose joined to the reducing-end
- N-acetylglucosamine of the carbohydrate moieties of glycoproteins. Deficiency
- of alpha-L-fucosidase results in the lysosomal storage disease fucosidosis.
-
- A cysteine residue is important for the activity of the enzyme. There is only
- one cysteine conserved between the sequence of mammalian alpha-L-fucosidase
- and that of the slime mold Dictyostelium discoideum. We have derived a pattern
- from the region around that conserved cysteine.
-
- -Consensus pattern: P-x(2)-L-x(2)-H-K-W-E-x-C
- [C is the putative active site residue]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
-
- -Note: these proteins belong to family 29 in the classification of glycosyl
- hydrolases [2].
-
- -Last update: December 1992 / Text revised.
-
- [ 1] Fisher K.J., Aronson N.N. Jr.
- Biochem. J. 264:695-701(1989).
- [ 2] Henrissat B.
- Biochem. J. 280:309-316(1991).
-