Mannosyl-oligosaccharide 1,2-alpha-mannosidase IB

NameMannosyl-oligosaccharide 1,2-alpha-mannosidase IB
Synonyms
  • 3.2.1.113
  • Alpha-1,2-mannosidase IB
  • MAN1B
  • Mannosidase alpha class 1A member 2
  • Processing alpha-1,2-mannosidase IB
Gene NameMAN1A2
OrganismHuman
Amino acid sequence
>lcl|BSEQ0020868|Mannosyl-oligosaccharide 1,2-alpha-mannosidase IB
MTTPALLPLSGRRIPPLNLGPPSFPHHRATLRLSEKFILLLILSAFITLCFGAFFFLPDS
SKHKRFDLGLEDVLIPHVDAGKGAKNPGVFLIHGPDEHRHREEEERLRNKIRADHEKALE
EAKEKLRKSREEIRAEIQTEKNKVVQEMKIKENKPLPPVPIPNLVGIRGGDPEDNDIREK
REKIKEMMKHAWDNYRTYGWGHNELRPIARKGHSPNIFGSSQMGATIVDALDTLYIMGLH
DEFLDGQRWIEDNLDFSVNSEVSVFEVNIRFIGGLLAAYYLSGEEIFKIKAVQLAEKLLP
AFNTPTGIPWAMVNLKSGVGRNWGWASAGSSILAEFGTLHMEFIHLSYLTGDLTYYKKVM
HIRKLLQKMDRPNGLYPNYLNPRTGRWGQYHTSVGGLGDSFYEYLLKAWLMSDKTDHEAR
KMYDDAIEAIEKHLIKKSRGGLTFIGEWKNGHLEKKMGHLACFAGGMFALGADGSRADKA
GHYLELGAEIARTCHESYDRTALKLGPESFKFDGAVEAVAVRQAEKYYILRPEVIETYWY
LWRFTHDPRYRQWGWEAALAIEKYCRVNGGFSGVKDVYSSTPTHDDVQQSFFLAETLKYL
YLLFSGDDLLPLDHWVFNTEAHPLPVLHLANTTLSGNPAVR
Number of residues641
Molecular Weight73002.93
Theoretical pINot Available
GO Classification
Functions
  • calcium ion binding
  • mannosyl-oligosaccharide 1,2-alpha-mannosidase activity
Processes
  • protein N-linked glycosylation via asparagine
  • respiratory gaseous exchange
  • lung alveolus development
  • N-glycan processing
  • cellular protein metabolic process
  • post-translational protein modification
Components
  • membrane
  • endoplasmic reticulum
  • Golgi apparatus
  • integral component of membrane
  • extracellular exosome
  • Golgi membrane
General FunctionMannosyl-oligosaccharide 1,2-alpha-mannosidase activity
Specific FunctionInvolved 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).
Pfam Domain Function
Transmembrane Regions37-57
GenBank Protein IDNot Available
UniProtKB IDO60476
UniProtKB Entry NameMA1A2_HUMAN
Cellular LocationGolgi apparatus membrane
Gene sequence
>lcl|BSEQ0020869|Mannosyl-oligosaccharide 1,2-alpha-mannosidase IB (MAN1A2)
ATGACTACCCCAGCCCTGCTGCCCCTCTCTGGACGTAGGATACCACCTCTGAACCTGGGG
CCGCCTTCCTTCCCACATCACAGGGCTACCTTGAGACTTTCTGAGAAGTTTATTCTTCTC
CTTATTCTTAGTGCCTTCATCACTCTGTGTTTTGGGGCATTCTTTTTCCTTCCAGACTCT
TCAAAACACAAACGCTTTGATTTGGGTTTAGAAGATGTGTTAATTCCACATGTAGATGCC
GGTAAAGGGGCTAAAAACCCCGGAGTCTTCCTGATCCATGGACCCGATGAACATAGACAC
AGGGAAGAGGAAGAACGTCTGAGAAATAAAATTCGAGCTGATCATGAGAAGGCCTTGGAA
GAAGCAAAAGAAAAATTAAGAAAGTCAAGAGAGGAAATTCGAGCAGAAATTCAGACAGAG
AAAAATAAGGTAGTCCAAGAAATGAAGATAAAAGAGAACAAGCCACTGCCACCAGTCCCT
ATTCCCAACCTTGTAGGAATACGTGGTGGAGACCCAGAAGATAATGACATAAGAGAGAAA
AGGGAAAAAATTAAAGAGATGATGAAACATGCTTGGGATAACTATAGGACATATGGGTGG
GGACATAATGAACTCAGACCTATTGCAAGGAAAGGACACTCCCCTAACATATTTGGAAGT
TCACAAATGGGTGCTACCATAGTAGATGCTTTGGATACCCTTTATATCATGGGACTTCAT
GATGAATTCCTAGATGGGCAAAGATGGATTGAAGACAACCTTGATTTCAGTGTGAATTCA
GAGGTGTCTGTGTTTGAAGTCAACATTCGATTTATTGGAGGCCTACTTGCAGCATATTAC
CTATCAGGAGAGGAGATATTCAAGATTAAAGCAGTGCAATTGGCTGAGAAACTCCTTCCT
GCCTTTAACACACCTACTGGGATTCCTTGGGCAATGGTGAATTTGAAAAGTGGAGTAGGG
CGAAACTGGGGCTGGGCATCTGCAGGTAGCAGCATTCTGGCTGAATTTGGTACACTACAT
ATGGAGTTCATCCACCTCAGCTACTTGACAGGGGACCTGACTTACTACAAAAAGGTTATG
CACATTCGGAAACTACTTCAGAAAATGGATCGTCCAAATGGTCTTTATCCAAATTATTTG
AACCCCAGAACAGGGCGCTGGGGTCAGTATCATACATCTGTCGGTGGCCTGGGAGACAGT
TTTTATGAATACTTACTGAAAGCATGGTTGATGTCAGATAAAACAGACCATGAGGCAAGA
AAGATGTATGATGATGCTATTGAGGCTATAGAAAAACATCTTATTAAGAAGTCTCGTGGA
GGTCTTACCTTTATTGGAGAATGGAAGAATGGGCACTTGGAAAAAAAGATGGGGCATTTG
GCCTGCTTTGCTGGGGGAATGTTTGCACTAGGAGCAGATGGTTCCAGAGCAGATAAAGCT
GGTCATTATTTAGAGCTAGGGGCAGAAATTGCACGTACTTGTCATGAGTCATATGACAGA
ACTGCATTAAAGCTAGGTCCTGAATCATTCAAGTTTGATGGTGCAGTGGAGGCTGTGGCT
GTCCGGCAGGCTGAAAAGTATTATATCCTCCGTCCAGAAGTAATTGAAACCTATTGGTAC
CTATGGCGATTCACTCACGATCCAAGATACAGGCAGTGGGGCTGGGAAGCAGCACTGGCC
ATTGAAAAGTATTGCCGAGTTAATGGTGGGTTTTCTGGAGTCAAAGATGTATATTCCTCT
ACTCCTACACATGATGATGTACAGCAGAGCTTTTTTCTTGCTGAAACATTAAAATATTTG
TATCTGCTGTTCTCCGGTGATGACCTTTTACCTTTAGACCACTGGGTGTTTAATACAGAG
GCTCACCCTCTGCCTGTGTTACATTTAGCCAACACCACACTTTCAGGTAATCCTGCTGTT
CGATGA
GenBank Gene IDNot Available
GeneCard IDNot Available
GenAtlas IDNot Available
HGNC IDHGNC:6822
Chromosome Location1
LocusNot Available
References
  1. Tremblay LO, Campbell Dyke N, Herscovics A: Molecular cloning, chromosomal mapping and tissue-specific expression of a novel human alpha1,2-mannosidase gene involved in N-glycan maturation. Glycobiology. 1998 Jun;8(6):585-95. 9592125
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