
alpha-Mannosidase (, ''alpha-D-mannosidase'', ''p-nitrophenyl-alpha-mannosidase'', ''alpha-D-mannopyranosidase'', ''1,2-alpha-mannosidase'', ''1,2-alpha-D-mannosidase'', ''exo-alpha-mannosidase'') is an
enzyme
Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrate (chemistry), substrates, and the enzyme converts the substrates into different molecule ...
involved in the cleavage of the alpha form of
mannose
Mannose is a sugar monomer of the aldohexose series of carbohydrates. It is a C-2 epimer of glucose. Mannose is important in human metabolism, especially in the glycosylation of certain proteins. Several congenital disorders of glycosylation a ...
. Its
systematic name A systematic name is a name given in a systematic way to one unique group, organism, object or chemical substance, out of a specific population or collection. Systematic names are usually part of a nomenclature.
A semisystematic name or semitrivial ...
is ''alpha-D-mannoside mannohydrolase''.
Isozymes
Humans express the following three alpha-mannosidase
isozymes In biochemistry, isozymes (also known as isoenzymes or more generally as multiple forms of enzymes) are enzymes that differ in amino acid sequence but catalyze the same chemical reaction. Isozymes usually have different kinetic parameters (e.g. dif ...
:
Applications
It can be utilized in experiments that determine the effects of the presence or absence of mannose on specific molecules, such as recombinant proteins that are used in vaccine development.
Pathology
A deficiency can lead to
alpha-mannosidosis.
References
External links
GeneReviews/NCBI/NIH/UW entry on Alpha-Mannosidosis OMIM entries on Alpha-Mannosidosis*
EC 3.2.1
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