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 (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
21
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
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
View all (55 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
SLC19A3-related disorder Likely pathogenic; Pathogenic rs373198092 RCV003898057
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Thiamine metabolism dysfunction syndrome 2 (biotin/thiamine-responsive basal ganglia disease type) Pathogenic rs121917884 RCV004527286
★★★★☆
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
BASAL GANGLIA DISEASE, BIOTIN-RESPONSIVE CTD
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
BASAL GANGLIA DISEASE, BIOTIN-THIAMINE RESPONSIVE HPO
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
BASAL GANGLIA DISEASES CTD, Disgenet
CTD, Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
BIOTIN-THIAMINE-RESPONSIVE BASAL GANGLIA DISEASE Disgenet, Orphanet
Disgenet, Orphanet
★★☆☆☆
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
Acute encephalopathy Encephalopathy BEFREE 25876998
★☆☆☆☆
Found in Text Mining only
Aicardi Goutieres syndrome Aicardi goutieres syndrome Pubtator 26863430 Associate
★☆☆☆☆
Found in Text Mining only
Alzheimer Disease Alzheimer disease Pubtator 26394601 Associate
★☆☆☆☆
Found in Text Mining only
Anemia Anemia HPO_DG
★☆☆☆☆
Found in Text Mining only
Arthritis Arthritis Pubtator 40243602 Associate
★☆☆☆☆
Found in Text Mining only
Atrophy Atrophy Pubtator 23482991, 34586830 Associate
★☆☆☆☆
Found in Text Mining only
Basal ganglia disease, biotin-responsive Basal Ganglia Diseases BEFREE 15871139, 20065143, 22777947, 24099834, 24372704, 24789339, 24957181, 25876998, 27749535, 27905264, 28665968, 28677371, 29101630, 30054086, 31557427
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Basal ganglia disease, biotin-responsive Basal Ganglia Diseases CTD_human_DG 15871139
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Basal ganglia disease, biotin-responsive Basal Ganglia Diseases UNIPROT_DG 15871139
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Basal ganglia disease, biotin-responsive Basal Ganglia Diseases ORPHANET_DG 19387023
★★☆☆☆
Found in Text Mining + Unknown/Other Associations