Reactome: A Curated Pathway Database
THIS SITE IS USED FOR CURATION AND TESTING
IT IS NOT STABLE, IS LINKED TO AN INCOMPLETE DATA SET, AND IS NOT MONITORED FOR PERFORMANCE. WE STRONGLY RECOMMEND THE USE OF OUR PUBLIC SITE

Query author contributions in Reactome

Reactome depends on collaboration between our curation team and outside experts to assemble and peer-review its pathway modules. The integration of ORCID within Reactome enables us to meet a key challenge with authoring, curating and reviewing biological information by incentivizing and crediting the external experts that contribute their expertise and time to the Reactome curation process. More information is available at ORCID and Reactome.

If you have an ORCID ID that is not listed on this page, please forward this information to us and we will update your Reactome pathway records.

Name Email address

Details on Person UniProt:O60476 MAN1A2

Class:IdReferenceGeneProduct:58865
_chainChangeLoginitiator methionine:1 added on Fri February 6 2015;chain:2-641 added on Fri February 6 2015;initiator methionine:1 for 58865 removed on Fri Nov 03 2023;initiator methionine: for 58865 added on Fri Nov 03 2023;initiator methionine: for 58865 removed on Fri Aug 15 2025;initiator methionine:1 for 58865 added on Fri Aug 15 2025
_displayNameUniProt:O60476 MAN1A2
_timestamp2025-08-15 21:01:05
chaininitiator methionine:1
chain:2-641
checksum19DA691A9C4B0ED3
commentFUNCTION Involved in the maturation of Asn-linked oligosaccharides. Progressively trim alpha-1,2-linked mannose residues from Man(9)GlcNAc(2) to produce Man(5)GlcNAc(2).CATALYTIC ACTIVITY N(4)-(alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 9A1,2,3B1,2,3) + 4 H2O = N(4)-(alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 5A1,2) + 4 beta-D-mannoseCATALYTIC ACTIVITY N(4)-(alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 8A1,2,3B1,3) + 3 H2O = N(4)-(alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 5A1,2) + 3 beta-D-mannoseCOFACTOR Inhibited by both 1-deoxymannojirimycin and kifunensine.PATHWAY Protein modification; protein glycosylation.SUBCELLULAR LOCATION Highest levels of expression in placenta and testis.SIMILARITY Belongs to the glycosyl hydrolase 47 family.
descriptionrecommendedName: Mannosyl-oligosaccharide 1,2-alpha-mannosidase IB ecNumber evidence="2"3.2.1.113 alternativeName: Mannosidase alpha class 1A member 2 alternativeName: Processing alpha-1,2-mannosidase IB shortName: Alpha-1,2-mannosidase IB
geneNameMAN1A2
MAN1B
identifierO60476
isSequenceChangedFALSE
keywordAcetylation
Calcium
Disulfide bond
Glycoprotein
Glycosidase
Golgi apparatus
Hydrolase
Membrane
Metal-binding
Proteomics identification
Reference proteome
Signal-anchor
Transmembrane
Transmembrane helix
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
nameMAN1A2
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8962217] ENSEMBL:ENSG00000198162 MAN1A2 [Homo sapiens]
secondaryIdentifierMA1A2_HUMAN
Q9H510
sequenceLength641
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:964747] MAN1A2 [Golgi membrane] [Homo sapiens]
[EntityWithAccessionedSequence:8847486] MAN1A2 [transport vesicle] [Homo sapiens]
[Change default viewing format]
No pathways have been reviewed or authored by UniProt:O60476 MAN1A2 (58865)