Gene Gene information from NCBI Gene database.
Entrez ID 11253
Gene name Mannosidase alpha class 1B member 1
Gene symbol MAN1B1
Synonyms (NCBI Gene)
ERMAN1ERManIMANA-ERMRT15
Chromosome 9
Chromosome location 9q34.3
Summary This gene encodes an enzyme belonging to the glycosyl hydrolase 47 family. This enzyme functions in N-glycan biosynthesis, and is a class I alpha-1,2-mannosidase that specifically converts Man9GlcNAc to Man8GlcNAc isomer B. It is required for N-glycan tri
SNPs SNP information provided by dbSNP.
13
SNP ID Visualize variation Clinical significance Consequence
rs75442795 G>A,C Likely-pathogenic, conflicting-interpretations-of-pathogenicity, benign Missense variant, non coding transcript variant, coding sequence variant
rs146417316 C>A,T Conflicting-interpretations-of-pathogenicity, likely-benign, uncertain-significance Missense variant, synonymous variant, non coding transcript variant, coding sequence variant
rs147529965 T>C Likely-benign, conflicting-interpretations-of-pathogenicity, uncertain-significance Missense variant, non coding transcript variant, coding sequence variant
rs150942110 C>T Conflicting-interpretations-of-pathogenicity Synonymous variant, non coding transcript variant, coding sequence variant
rs181795958 G>A,C Conflicting-interpretations-of-pathogenicity, uncertain-significance, benign 3 prime UTR variant, missense variant, synonymous variant, non coding transcript variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
83
miRTarBase ID miRNA Experiments Reference
MIRT023765 hsa-miR-1-3p Proteomics 18668040
MIRT438070 hsa-miR-125b-5p Luciferase reporter assayqRT-PCRWestern blot 23940818
MIRT438070 hsa-miR-125b-5p Luciferase reporter assayqRT-PCRWestern blot 23940818
MIRT1127178 hsa-miR-1289 CLIP-seq
MIRT1127179 hsa-miR-1299 CLIP-seq
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
36
GO ID Ontology Definition Evidence Reference
GO:0004571 Function Mannosyl-oligosaccharide 1,2-alpha-mannosidase activity IBA
GO:0004571 Function Mannosyl-oligosaccharide 1,2-alpha-mannosidase activity IDA 10521544, 12090241, 22160784
GO:0004571 Function Mannosyl-oligosaccharide 1,2-alpha-mannosidase activity IEA
GO:0004571 Function Mannosyl-oligosaccharide 1,2-alpha-mannosidase activity IMP 18003979
GO:0004571 Function Mannosyl-oligosaccharide 1,2-alpha-mannosidase activity TAS 10409699, 10521544
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
604346 6823 ENSG00000177239
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q9UKM7
Protein name Endoplasmic reticulum mannosyl-oligosaccharide 1,2-alpha-mannosidase (EC 3.2.1.113) (ER alpha-1,2-mannosidase) (ER mannosidase 1) (ERMan1) (Man9GlcNAc2-specific-processing alpha-mannosidase) (Mannosidase alpha class 1B member 1)
Protein 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 fo
PDB 1FMI , 1FO2 , 1FO3 , 1X9D , 5KIJ , 5KK7
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF01532 Glyco_hydro_47 256 695 Glycosyl hydrolase family 47 Domain
Tissue specificity TISSUE SPECIFICITY: Widely expressed. {ECO:0000269|PubMed:10409699, ECO:0000269|PubMed:10521544}.
Sequence
Sequence length 699
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  N-Glycan biosynthesis
Various types of N-glycan biosynthesis
Metabolic pathways
Protein processing in endoplasmic reticulum
  Defective MAN1B1 causes MRT15
ER Quality Control Compartment (ERQC)
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
22
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
MAN1B1-congenital disorder of glycosylation Pathogenic rs1207589187 RCV001825012
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
MAN1B1-related disorder Pathogenic rs753503405 RCV004735927
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Rafiq syndrome Pathogenic; Likely pathogenic rs1831100789, rs2130986124, rs1207589187, rs2130983856, rs745337581, rs2538333097, rs2538445870, rs794729645, rs1564281463, rs797045688, rs1830815799, rs1419259096, rs2538317999, rs2538339133, rs1243024601
View all (12 more)
RCV001332117
RCV001390554
RCV003640982
RCV002226993
RCV002463371
View all (22 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
Acute myeloid leukemia Benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Adrenocortical carcinoma, hereditary Benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTOSOMAL RECESSIVE NON-SYNDROMIC INTELLECTUAL DISABILITY Disgenet, GenCC, Orphanet
Disgenet, GenCC, Orphanet
Disgenet, GenCC, Orphanet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CARBOHYDRATE DEFICIENT GLYCOPROTEIN SYNDROME TYPE 2 DUE TO DEFICIENCY OF MANNOSIDASE ALPHA CLASS 1B MEMBER 1 Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
2-3 toe syndactyly Syndactyly Of The Toes HPO_DG
★☆☆☆☆
Found in Text Mining only
Absence of septum pellucidum Absence Of Septum Pellucidum HPO_DG
★☆☆☆☆
Found in Text Mining only
alpha 1-Antitrypsin Deficiency Alpha 1-Antitrypsin Deficiency BEFREE 28887821
★☆☆☆☆
Found in Text Mining only
Autistic behavior Autism HPO_DG
★☆☆☆☆
Found in Text Mining only
Autistic Disorder Autism HPO_DG
★☆☆☆☆
Found in Text Mining only
Autosomal recessive non-syndromic intellectual disability Non-Syndromic Intellectual Disability Orphanet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Bladder Neoplasm Bladder Neoplasm BEFREE 30218751
★☆☆☆☆
Found in Text Mining only
Blood Coagulation Disorders Blood coagulation disorder Pubtator 34831340 Associate
★☆☆☆☆
Found in Text Mining only
Brain Diseases Brain disease Pubtator 34831340 Associate
★☆☆☆☆
Found in Text Mining only
Cafe au lait spots, multiple Cafe-au-lait spot HPO_DG
★☆☆☆☆
Found in Text Mining only