Gene Gene information from NCBI Gene database.
Entrez ID 80704
Gene name Solute carrier family 19 member 3
Gene symbol SLC19A3
Synonyms (NCBI Gene)
BBGDTHMD2THTR2hTHTR2thTr-2
Chromosome 2
Chromosome location 2q36.3
Summary This gene encodes a ubiquitously expressed transmembrane thiamine transporter that lacks folate transport activity. Mutations in this gene cause biotin-responsive basal ganglia disease (BBGD); a recessive disorder manifested in childhood that progresses t
SNPs SNP information provided by dbSNP.
39
SNP ID Visualize variation Clinical significance Consequence
rs121917882 C>A,T Pathogenic 5 prime UTR variant, coding sequence variant, missense variant
rs121917884 T>C Pathogenic Coding sequence variant, missense variant
rs137852957 T>C Pathogenic 5 prime UTR variant, coding sequence variant, missense variant
rs137852958 C>A,G Pathogenic Stop gained, coding sequence variant, missense variant
rs138363524 G>A,C Conflicting-interpretations-of-pathogenicity, uncertain-significance, likely-benign Coding sequence variant, synonymous variant
miRNA miRNA information provided by mirtarbase database.
477
miRTarBase ID miRNA Experiments Reference
MIRT027742 hsa-miR-98-5p Microarray 19088304
MIRT681956 hsa-miR-890 HITS-CLIP 23706177
MIRT681955 hsa-miR-6888-5p HITS-CLIP 23706177
MIRT681954 hsa-miR-3929 HITS-CLIP 23706177
MIRT681953 hsa-miR-4419b HITS-CLIP 23706177
Transcription factors Transcription factors information provided by TRRUST V2 database.
3
Transcription factor Regulation Reference
SP1 Activation 15217784
SP1 Unknown 23989004;24525018
SP3 Activation 15217784
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
22
GO ID Ontology Definition Evidence Reference
GO:0005515 Function Protein binding IPI 32296183
GO:0005886 Component Plasma membrane IBA
GO:0005886 Component Plasma membrane IEA
GO:0005886 Component Plasma membrane TAS
GO:0009229 Process Thiamine diphosphate biosynthetic process IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
606152 16266 ENSG00000135917
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q9BZV2
Protein name Thiamine transporter 2 (ThTr-2) (ThTr2) (Solute carrier family 19 member 3)
Protein function Mediates high affinity thiamine uptake, probably via a proton anti-port mechanism (PubMed:11731220, PubMed:33008889, PubMed:35512554, PubMed:35724964). Has no folate transport activity (PubMed:11731220). Mediates H(+)-dependent pyridoxine transp
PDB 8S4U , 8S5U , 8S5W , 8S5Z , 8S61 , 8S62 , 8XV2 , 8XV5 , 8XV9 , 8Z7R , 8Z7S , 8Z7T , 8Z7U , 8Z7V , 8Z7W , 8Z7X , 8Z7Y , 9G5K
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF01770 Folate_carrier 10 441 Reduced folate carrier Family
Tissue specificity TISSUE SPECIFICITY: Widely expressed but most abundant in placenta, kidney and liver. {ECO:0000269|PubMed:11136550, ECO:0000269|PubMed:15871139}.
Sequence
Sequence length 496
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Vitamin digestion and absorption   Vitamin B1 (thiamin) metabolism
Associated diseases Disease associations from ClinVar categorized as Causal (Pathogenic/Likely Pathogenic) or Unknown.
622
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Biotin-responsive basal ganglia disease Pathogenic; Likely pathogenic rs2106318158, rs2106325859, rs2106328737, rs2106329702, rs2106329494, rs1695551164, rs2106325851, rs778816786, rs2106329218, rs713993048, rs786205213, rs2470573380, rs121917882, rs121917884, rs137852957
View all (43 more)
RCV001386752
RCV001388133
RCV001384512
RCV003771790
RCV001806393
RCV001939377
RCV002020467
RCV001941887
RCV001982938
RCV000149551
RCV000170443
RCV002582860
RCV000004824
RCV000004825
RCV000004827
RCV000004828
RCV002805831
RCV002852519
RCV002909524
RCV003231062
RCV003502762
RCV003502958
RCV003502890
RCV003504465
RCV003504529
RCV003503177
RCV003503210
RCV003503264
RCV003503422
RCV003611727
RCV003612849
RCV003613046
RCV003613096
RCV003613167
RCV003613171
RCV003613504
RCV003612469
RCV003988722
RCV004006229
RCV000408622
RCV000408606
RCV000656113
RCV000656116
RCV000656117
RCV000656115
RCV000697912
RCV000578309
RCV000640712
RCV000702941
RCV000721987
RCV001387186
RCV005633806
RCV001052853
RCV001809982
RCV001873462
RCV001174545
RCV001215703
RCV001226019
RCV001250166
RCV003502593
SLC19A3-related disorder Likely pathogenic; Pathogenic rs373198092 RCV003898057
Thiamine metabolism dysfunction syndrome 2 (biotin/thiamine-responsive basal ganglia disease type) Pathogenic rs121917884 RCV004527286
Unknown Diseases with uncertain, conflicting, or no pathogenic evidence in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Intellectual disability Conflicting classifications of pathogenicity rs199558186 RCV001251644
Ovarian serous cystadenocarcinoma Uncertain significance rs759915200 RCV005913855
See cases Uncertain significance rs150523975 RCV002252360
Spastic paraplegia Uncertain significance rs768902061 RCV001823787
Associations from Text MiningDisease associations identified through Pubtator
Disease Name Relationship Type References
Aicardi Goutieres syndrome Associate 26863430
Alopecia Areata 1 Associate 40243602
alpha Mannosidosis Associate 34614013
Alzheimer Disease Associate 26394601
Arthritis Associate 40243602
Atrophy Associate 23482991, 34586830
Basal ganglia disease biotin responsive Associate 15871139, 24099834, 27749535, 28696212, 31557427, 34586830, 34953623, 35532649, 37670342
Basal Ganglia Diseases Associate 21176162, 24099834, 26863430, 27749535, 28402605, 28677371, 34586830, 35532649, 37670342
Biotin deficiency Associate 15623830
Brain Diseases Associate 23482991, 24372704, 26863430