The glycoside hydrolase family 20 comprises enzymes with β-hexosaminidase and lacto-N-biosidase activity.
Pen ch 20, an N-acetyl-hexosaminadase from the fungus Penicillium chrysogenum was identified as an allergens .
Family-defining Pfam domains (at least one of these domains is present in each family member):
|Pfam domain||Pfam clan|
|PF00728||Glycosyl hydrolase family 20, catalytic domain||CL0058||Tim barrel glycosyl hydrolase superfamily|
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