Gene Gene information from NCBI Gene database.
Entrez ID 3073
Gene name Hexosaminidase subunit alpha
Gene symbol HEXA
Synonyms (NCBI Gene)
TSD
Chromosome 15
Chromosome location 15q23
Summary This gene encodes a member of the glycosyl hydrolase 20 family of proteins. The encoded preproprotein is proteolytically processed to generate the alpha subunit of the lysosomal enzyme beta-hexosaminidase. This enzyme, together with the cofactor GM2 activ
SNPs SNP information provided by dbSNP.
106
SNP ID Visualize variation Clinical significance Consequence
rs1800429 C>T Pathogenic, uncertain-significance Missense variant, non coding transcript variant, coding sequence variant
rs28941770 C>A,G,T Pathogenic Non coding transcript variant, missense variant, coding sequence variant
rs28941771 A>G Pathogenic Non coding transcript variant, missense variant, coding sequence variant
rs28942071 G>A Pathogenic, pathogenic-likely-pathogenic Non coding transcript variant, missense variant, coding sequence variant
rs28942072 A>G,T Pathogenic Non coding transcript variant, synonymous variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
114
miRTarBase ID miRNA Experiments Reference
MIRT028906 hsa-miR-26b-5p Microarray 19088304
MIRT039954 hsa-miR-615-3p CLASH 23622248
MIRT664666 hsa-miR-4746-3p HITS-CLIP 23824327
MIRT664665 hsa-miR-4284 HITS-CLIP 23824327
MIRT664664 hsa-miR-24-3p HITS-CLIP 23824327
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
50
GO ID Ontology Definition Evidence Reference
GO:0001501 Process Skeletal system development IEA
GO:0004553 Function Hydrolase activity, hydrolyzing O-glycosyl compounds IEA
GO:0004563 Function Beta-N-acetylhexosaminidase activity IBA
GO:0004563 Function Beta-N-acetylhexosaminidase activity IDA 8123671, 8672428, 9694901
GO:0004563 Function Beta-N-acetylhexosaminidase activity IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
606869 4878 ENSG00000213614
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
P06865
Protein name Beta-hexosaminidase subunit alpha (EC 3.2.1.52) (Beta-N-acetylhexosaminidase subunit alpha) (Hexosaminidase subunit A) (N-acetyl-beta-glucosaminidase subunit alpha)
Protein function Hydrolyzes the non-reducing end N-acetyl-D-hexosamine and/or sulfated N-acetyl-D-hexosamine of glycoconjugates, such as the oligosaccharide moieties from proteins and neutral glycolipids, or from certain mucopolysaccharides (PubMed:11707436, Pub
PDB 2GJX , 2GK1
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF14845 Glycohydro_20b2 23 145 beta-acetyl hexosaminidase like Domain
PF00728 Glyco_hydro_20 167 488 Glycosyl hydrolase family 20, catalytic domain Domain
Sequence
Sequence length 529
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Other glycan degradation
Various types of N-glycan biosynthesis
Amino sugar and nucleotide sugar metabolism
Glycosaminoglycan degradation
Sphingolipid metabolism
Glycosphingolipid biosynthesis - globo and isoglobo series
Glycosphingolipid biosynthesis - ganglio series
Metabolic pathways
Lysosome
  Glycosphingolipid metabolism
Keratan sulfate degradation
CS/DS degradation
Hyaluronan uptake and degradation
Defective HEXA causes GM2G1
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
45
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
Acute myeloid leukemia Likely pathogenic; Pathogenic rs76173977 RCV005887279
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Clear cell carcinoma of kidney Likely pathogenic; Pathogenic rs76173977 RCV005887280
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Familial cancer of breast Likely pathogenic; Pathogenic rs121907954, rs76173977 RCV005887276
RCV005887278
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Glioma susceptibility 1 Pathogenic rs121907957 RCV005887277
★★★★☆
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
BETA-HEXOSAMINIDASE A, PSEUDODEFICIENCY OF Benign; Likely benign; other ClinVar
Disgenet
★★★☆☆
Reported in Unknown/Other Associations (≥2 sources)
BETA-HEXOSAMINIDASE SUBUNIT ALPHA DEFICIENCY, ADULT FORM Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
BETA-HEXOSAMINIDASE SUBUNIT ALPHA DEFICIENCY, INFANTILE FORM Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cervical cancer -; Benign ClinVar
★★☆☆☆
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
Amaurotic Familial Idiocy Amaurotic Idiocy CTD_human_DG 11392526
★☆☆☆☆
Found in Text Mining only
Amyotrophic Lateral Sclerosis Amyotrophic Lateral Sclerosis BEFREE 7973467
★☆☆☆☆
Found in Text Mining only
Anemia, Sickle Cell Anemia BEFREE 31634902
★☆☆☆☆
Found in Text Mining only
BETA-HEXOSAMINIDASE A, PSEUDODEFICIENCY OF PSEUDODEFICIENCY OF BETA-HEXOSAMINIDASE A CLINVAR_DG
★★★☆☆
Reported in Unknown/Other Associations (≥2 sources)
Cystic Fibrosis Cystic Fibrosis BEFREE 14769930
★☆☆☆☆
Found in Text Mining only
Dementia Dementia HPO_DG
★☆☆☆☆
Found in Text Mining only
Developmental regression Developmental regression CLINVAR_DG 1532289, 22723944, 23852624, 27896118, 9150157
★☆☆☆☆
Found in Text Mining only
Diffuse Scleroderma Scleroderma BEFREE 28197938
★☆☆☆☆
Found in Text Mining only
Gaucher Disease Gaucher Disease BEFREE 29795570, 7973467
★☆☆☆☆
Found in Text Mining only
Glioma Glioma LHGDN 16710745
★☆☆☆☆
Found in Text Mining only