Gene Information
Gene NameSLC44A4
OrganismHomo sapiens (Human)
Gene Length710
Protein NamesCholine transporter-like protein 4 (Solute carrier family 44 member 4) (Thiamine pyrophosphate transporter 1) (hTPPT1)
Target Namecholine transporter-like protein 4
Target TypeClinical trial target
Gene Age645 ( ENSG00000204385 )
3 ( ENSG00000206378 )
3 ( ENSG00000228263 )
3 ( ENSG00000229077 )
3 ( ENSG00000231479 )
3 ( ENSG00000232180 )
3 ( ENSG00000235336 )
Evolutionary StageEukaryota
AlphaFoldDBQ53GD3
Gene CardSLC44A4
Uniprot IDQ53GD3
PfamPF04515
In ASDno
Allosteric Predictionno (-0.381731987)
Ortholog in AnimalsAlpaca_ SLC44A4 ( ortholog_one2one )
Dog_ SLC44A4 ( ortholog_one2one )
GuineaPig_ SLC44A4 ( ortholog_one2one )
Macaque_ SLC44A4 ( ortholog_one2one )
Mouse_ Slc44a4 ( ortholog_one2one )
Pig_ SLC44A4 ( ortholog_one2one )
Rat_ Slc44a4 ( ortholog_one2one )
Rabbit_ SLC44A4 ( ortholog_one2one )
OhnologsSLC44A2, SLC44A5
ParalogsSLC44A2, SLC44A1, SLC44A5, SLC44A3
Tissueprostate, stomach, transverse.colon
Tissue SpecificityHighly expressed in colon, also detected in prostate, trachea and lung (PubMed:24379411). Isoform 3 is also expressed in colon but a lower levels (PubMed:24379411). {ECO:0000269|PubMed:24379411}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs2075798  rs12661281  rs17856465  rs1135402753  rs2242665  rs644827  rs116706632  rs563426936  rs6915800 
Subcellular location [CC]Membrane {ECO:0000269|PubMed:24379411, ECO:0000269|PubMed:26828122};
Multi-pass membrane protein {ECO:0000305|PubMed:24379411, ECO:0000305|PubMed:26828122}. Apical cell membrane {ECO:0000269|PubMed:24379411}.
Mouse PG classificationNA
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