α-Mannosidase

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File:Tonge redo alpha mannosidase.png
Cartoon depiction of the protein Streptococcus pyogenes family GH38 α-Mannosidase created using PyMol.[1][2]
α-Mannosidase
File:5jm0.jpg
α-Mannosidase 1, tetramer, Saccharomyces cerevisiae
Identifiers
EC no.3.2.1.24
CAS no.9025-42-7
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

α-Mannosidase (EC 3.2.1.24, α-D-mannosidase, p-nitrophenyl-α-mannosidase, α-D-mannopyranosidase, 1,2-α-mannosidase, 1,2-α-D-mannosidase, exo-α-mannosidase) is an enzyme involved in the cleavage of the α form of mannose. Its systematic name is α-D-mannoside mannohydrolase.[3][4]

Isoenzymes

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Humans express the following three α-mannosidase isoenzymes:

mannosidase, α, class 2B, member 1
Identifiers
SymbolMAN2B1
Alt. symbolsMANB
NCBI gene4125
HGNC6826
OMIM609458
RefSeqNM_000528
UniProtO00754
Other data
EC number3.2.1.24
LocusChr. 19 cen-q13.1
Search for
StructuresSwiss-model
DomainsInterPro
mannosidase, α, class 2B, member 2
Identifiers
SymbolMAN2B2
Alt. symbolsKIAA0935
NCBI gene23324
HGNC29623
RefSeqNM_015274
UniProtQ9Y2E5
Other data
EC number3.2.1.24
LocusChr. 4 p16.2
Search for
StructuresSwiss-model
DomainsInterPro
mannosidase, α, class 2C, member 1
Identifiers
SymbolMAN2C1
Alt. symbolsMANA1, MANA
NCBI gene4123
HGNC6827
OMIM154580
RefSeqNM_006715
UniProtQ9NTJ4
Other data
EC number3.2.1.24
LocusChr. 15 q11-qter
Search for
StructuresSwiss-model
DomainsInterPro

Applications

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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.[5]

Pathology

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A deficiency can lead to α-mannosidosis.[6]

References

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