Gene Information
Gene NameSLC38A4
OrganismHomo sapiens (Human)
Gene Length547
Protein NamesSodium-coupled neutral amino acid transporter 4 (Amino acid transporter A3) (Na(+)-coupled neutral amino acid transporter 4) (Solute carrier family 38 member 4) (System A amino acid transporter 3) (System N amino acid transporter 3)
Target Namesodium-coupled neutral amino acid transporters
Target TypeNA
Gene Age987 ( ENSG00000139209 )
Evolutionary StageEukaryota
AlphaFoldDBQ969I6
Gene CardSLC38A4
Uniprot IDQ969I6
PfamPF01490
In ASDno
Allosteric Predictionno (-0.43878359)
Ortholog in AnimalsAlpaca_ SLC38A4 ( ortholog_one2one )
Dog_ SLC38A4 ( ortholog_one2one )
GuineaPig_ SLC38A4 ( ortholog_one2one )
Macaque_ SLC38A4 ( ortholog_one2one )
Mouse_ Slc38a4 ( ortholog_one2one )
Pig_ SLC38A4 ( ortholog_one2one )
Rat_ Slc38a4 ( ortholog_one2one )
Rabbit_ SLC38A4 ( ortholog_one2one )
OhnologsSLC38A5, SLC38A3
ParalogsSLC38A3, SLC36A1, SLC36A4, SLC38A10, SLC38A9, SLC36A3, SLC38A7, SLC38A8, SLC38A2, SLC36A2, SLC38A11, SLC38A6, SLC32A1, SLC38A1, SLC38A5
Tissueliver
Tissue SpecificityExpressed almost exclusively in embryonic and adult liver, and at lower levels in the kidney (PubMed:11342143, PubMed:11414754). Expressed at lower levels in adult muscle and pancreas (PubMed:11414754). Detected in fetal blood vessels (PubMed:16148032). Expressed in syncytiotrophoblas of placenta during first trimester and at term (PubMed:19015196, PubMed:16148032). Highly expressed in first trimester placenta compared to term placenta (PubMed:19015196). {ECO:0000269|PubMed:11342143, ECO:0000269|PubMed:11414754, ECO:0000269|PubMed:16148032, ECO:0000269|PubMed:19015196}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs2429467  rs11183610 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:11414754, ECO:0000269|PubMed:16148032};
Multi-pass membrane protein {ECO:0000269|PubMed:11414754}. Cell projection, microvillus membrane {ECO:0000269|PubMed:19015196};
Multi-pass membrane protein. Note=Microvillus membrane localization in placenta. {ECO:0000269|PubMed:19015196}.
Mouse PG classificationNA
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