| Identification |
|---|
| HMDB Protein ID
| CDBP00812 |
| Secondary Accession Numbers
| Not Available |
| Name
| Endoplasmic reticulum mannosyl-oligosaccharide 1,2-alpha-mannosidase |
| Description
| Not Available |
| Synonyms
|
- ER alpha-1,2-mannosidase
- ER mannosidase 1
- ERMan1
- Man9GlcNAc2-specific-processing alpha-mannosidase
- Mannosidase alpha class 1B member 1
|
| Gene Name
| MAN1B1 |
| Protein Type
| Enzyme |
| Biological Properties |
|---|
| General Function
| Involved in mannosyl-oligosaccharide 1,2-alpha-mannosidase activity |
| Specific Function
| Involved in glycoprotein quality control targeting of misfolded glycoproteins for degradation. It primarily trims a single alpha-1,2-linked mannose residue from Man(9)GlcNAc(2) to produce Man(8)GlcNAc(2), but at high enzyme concentrations, as found in the ER quality control compartment (ERQC), it further trims the carbohydrates to Man(5-6)GlcNAc(2).
|
| GO Classification
|
| Biological Process |
| protein folding |
| post-translational protein modification |
| protein N-linked glycosylation via asparagine |
| oligosaccharide metabolic process |
| ER-associated protein catabolic process |
| Cellular Component |
| endoplasmic reticulum membrane |
| endoplasmic reticulum quality control compartment |
| integral to membrane |
| Component |
| membrane |
| cell part |
| Function |
| mannosyl-oligosaccharide 1,2-alpha-mannosidase activity |
| cation binding |
| metal ion binding |
| binding |
| catalytic activity |
| hydrolase activity |
| hydrolase activity, acting on glycosyl bonds |
| hydrolase activity, hydrolyzing o-glycosyl compounds |
| calcium ion binding |
| mannosidase activity |
| mannosyl-oligosaccharide mannosidase activity |
| ion binding |
| Molecular Function |
| mannosyl-oligosaccharide 1,2-alpha-mannosidase activity |
| calcium ion binding |
|
| Cellular Location
|
- Endoplasmic reticulum membrane
- Single-pass type II membrane protein
|
| Pathways
|
| Name | SMPDB/Pathwhiz | KEGG | | protein glycosylation | Not Available | Not Available | | N-Glycan biosynthesis | Not Available |  | | Protein processing in endoplasmic reticulum | Not Available |  |
|
| Gene Properties |
|---|
| Chromosome Location
| 9 |
| Locus
| 9q34 |
| SNPs
| MAN1B1 |
| Gene Sequence
|
>2100 bp
ATGGCTGCCTGCGAGGGCAGGAGAAGCGGAGCTCTCGGTTCCTCTCAGTCGGACTTCCTG
ACGCCGCCAGTGGGCGGGGCCCCTTGGGCCGTCGCCACCACTGTAGTCATGTACCCACCG
CCGCCGCCGCCGCCTCATCGGGACTTCATCTCGGTGACGCTGAGCTTTGGCGAGAACTAT
GACAACAGCAAGAGTTGGCGGCGGCGCTCGTGCTGGAGGAAATGGAAGCAACTGTCGAGA
TTGCAGCGGAATATGATTCTCTTCCTCCTTGCCTTTCTGCTTTTCTGTGGACTCCTCTTC
TACATCAACTTGGCTGACCATTGGAAAGCTCTGGCTTTCAGGCTAGAGGAAGAGCAGAAG
ATGAGGCCAGAAATTGCTGGGTTAAAACCAGCAAATCCACCCGTCTTACCAGCTCCTCAG
AAGGCGGACACCGACCCTGAGAACTTACCTGAGATTTCGTCACAGAAGACACAAAGACAC
ATCCAGCGGGGACCACCTCACCTGCAGATTAGACCCCCAAGCCAAGACCTGAAGGATGGG
ACCCAGGAGGAGGCCACAAAAAGGCAAGAAGCCCCTGTGGATCCCCGCCCGGAAGGAGAT
CCGCAGAGGACAGTCATCAGCTGGAGGGGAGCGGTGATCGAGCCTGAGCAGGGCACCGAG
CTCCCTTCAAGAAGAGCAGAAGTGCCCACCAAGCCTCCCCTGCCACCGGCCAGGACACAG
GGCACACCAGTGCATCTGAACTATCGCCAGAAGGGCGTGATTGACGTCTTCCTGCATGCA
TGGAAAGGATACCGCAAGTTTGCATGGGGCCATGACGAGCTGAAGCCTGTGTCCAGGTCC
TTCAGTGAGTGGTTTGGCCTCGGTCTCACACTGATCGACGCGCTGGACACCATGTGGATC
TTGGGTCTGAGGAAAGAATTTGAGGAAGCCAGGAAGTGGGTGTCGAAGAAGTTACACTTT
GAAAAGGACGTGGACGTCAACCTGTTTGAGAGCACGATCCGCATCCTGGGGGGGCTCCTG
AGTGCCTACCACCTGTCTGGGGACAGCCTCTTCCTGAGGAAAGCTGAGGATTTTGGAAAT
CGGCTAATGCCTGCCTTCAGAACACCATCCAAGATTCCTTACTCGGATGTGAACATCGGT
ACTGGAGTTGCCCACCCGCCACGGTGGACCTCCGACAGCACTGTGGCCGAGGTGACCAGC
ATTCAGCTGGAGTTCCGGGAGCTCTCCCGTCTCACAGGGGATAAGAAGTTTCAGGAGGCA
GTGGAGAAGGTGACACAGCACATCCACGGCCTGTCTGGGAAGAAGGATGGGCTGGTGCCC
ATGTTCATCAATACCCACAGTGGCCTCTTCACCCACCTGGGCGTATTCACGCTGGGCGCC
AGGGCCGACAGCTACTATGAGTACCTGCTGAAGCAGTGGATCCAGGGCGGGAAGCAGGAG
ACACAGCTGCTGGAAGACTACGTGGAAGCCATCGAGGGTGTCAGAACGCACCTGCTGCGG
CACTCCGAGCCCAGTAAGCTCACCTTTGTGGGGGAGCTTGCCCACGGCCGCTTCAGTGCC
AAGATGGACCACCTGGTGTGCTTCCTGCCAGGGACGCTGGCTCTGGGCGTCTACCACGGC
CTGCCCGCCAGCCACATGGAGCTGGCCCAGGAGCTCATGGAGACTTGTTACCAGATGAAC
CGGCAGATGGAGACGGGGCTGAGTCCCGAGATCGTGCACTTCAACCTTTACCCCCAGCCG
GGCCGTCGGGACGTGGAGGTCAAGCCAGCAGACAGGCACAACCTGCTGCGGCCAGAGACC
GTGGAGAGCCTGTTCTACCTGTACCGCGTCACAGGGGACCGCAAATACCAGGACTGGGGC
TGGGAGATTCTGCAGAGCTTCAGCCGATTCACACGGGTCCCCTCGGGTGGCTATTCTTCC
ATCAACAATGTCCAGGATCCTCAGAAGCCCGAGCCTAGGGACAAGATGGAGAGCTTCTTC
CTGGGGGAGACGCTCAAGTATCTGTTCTTGCTCTTCTCCGATGACCCAAACCTGCTCAGC
CTGGATGCCTACGTGTTCAACACCGAAGCCCACCCTCTGCCTATCTGGACCCCTGCCTAG
|
| Protein Properties |
|---|
| Number of Residues
| 699 |
| Molecular Weight
| 79579.18 |
| Theoretical pI
| 7.719 |
| Pfam Domain Function
|
|
| Signals
|
Not Available
|
|
Transmembrane Regions
|
Not Available
|
| Protein Sequence
|
>Endoplasmic reticulum mannosyl-oligosaccharide 1,2-alpha-mannosidase
MAACEGRRSGALGSSQSDFLTPPVGGAPWAVATTVVMYPPPPPPPHRDFISVTLSFGENY
DNSKSWRRRSCWRKWKQLSRLQRNMILFLLAFLLFCGLLFYINLADHWKALAFRLEEEQK
MRPEIAGLKPANPPVLPAPQKADTDPENLPEISSQKTQRHIQRGPPHLQIRPPSQDLKDG
TQEEATKRQEAPVDPRPEGDPQRTVISWRGAVIEPEQGTELPSRRAEVPTKPPLPPARTQ
GTPVHLNYRQKGVIDVFLHAWKGYRKFAWGHDELKPVSRSFSEWFGLGLTLIDALDTMWI
LGLRKEFEEARKWVSKKLHFEKDVDVNLFESTIRILGGLLSAYHLSGDSLFLRKAEDFGN
RLMPAFRTPSKIPYSDVNIGTGVAHPPRWTSDSTVAEVTSIQLEFRELSRLTGDKKFQEA
VEKVTQHIHGLSGKKDGLVPMFINTHSGLFTHLGVFTLGARADSYYEYLLKQWIQGGKQE
TQLLEDYVEAIEGVRTHLLRHSEPSKLTFVGELAHGRFSAKMDHLVCFLPGTLALGVYHG
LPASHMELAQELMETCYQMNRQMETGLSPEIVHFNLYPQPGRRDVEVKPADRHNLLRPET
VESLFYLYRVTGDRKYQDWGWEILQSFSRFTRVPSGGYSSINNVQDPQKPEPRDKMESFF
LGETLKYLFLLFSDDPNLLSLDAYVFNTEAHPLPIWTPA
|
| External Links |
|---|
| GenBank ID Protein
| 218749883 |
| UniProtKB/Swiss-Prot ID
| Q9UKM7 |
| UniProtKB/Swiss-Prot Entry Name
| MA1B1_HUMAN |
| PDB IDs
|
|
| GenBank Gene ID
| NM_016219.3 |
| GeneCard ID
| MAN1B1 |
| GenAtlas ID
| MAN1B1 |
| HGNC ID
| HGNC:6823 |
| References |
|---|
| General References
| Not Available |