Drug Transporter (DT) Information

General Information of DT
DT ID DTD0336
Gene Name SLC38A9
Protein Name Sodium-coupled neutral amino acid transporter 9
Gene ID
153129
UniProt ID
Q8NBW4
TCDB ID
2.A.18.9.1
3D Structure

Modelled DT Structure

Method: homology modeling

Template PDB: 6C08_C

Identity: 66.32%

Minimized Score: -385.896 kcal/mol

Detail: Structure Info

Synonyms SLC38A9; Solute carrier family 38 member 9; URLC11; Up-regulated in lung cancer 11
DT Family Amino Acid/Auxin Permease (AAAP) Family ;
Function This transporter involved in the activation of mTORC1 in response to amino acid levels. Probably acts as an amino acid sensor of the Rag GTPases and Ragulator complexes, 2 complexes involved in amino acid sensing and activation of mTORC1, a signaling complex promoting cell growth in response to growth factors, energy levels, and amino acids. Following activation by amino acids, the Ragulator and Rag GTPases function as a scaffold recruiting mTORC1 to lysosomes where it is in turn activated. SLC38A9 mediates transport of amino acids with low capacity and specificity with a slight preference for polar amino acids. Acts as an arginine sensor. Following activation by arginine binding, mediates transport of leucine, tyrosine and phenylalanine with high efficiency, and is required for the efficient utilization of these amino acids after lysosomal protein degradation.
Endogenous Substrate(s) Na+
Variability Data of This Drug Transporter (DT)

Regulatory Variability Data of This DT (VARIDT 3.0)

(β) Post-translational Modification of This DT
Post-translational Modification (PTM)

(γ) Transcriptional Regulation of This DT
Transcriptional Regulation (TSR)

(δ) Epigenetic Regulation of This DT
Epigenetic Regulation (EGR)

Structural Variability Data of This DT (VARIDT 2.0)

(β) Inter-species Structural Differences
Inter-species Structural Differences (ISD)

General Variability Data of This DT (VARIDT 1.0)

(β) Disease-specific Protein Abundances of This DT
Disease-specific Protein Abundances of This DT (DPAD)

(γ) Species- and Tissue-specific DT Abundances
Species/Tissue-specific Protein Abundances of This DT (S/TPAD)
Molecular Transporting Profile of This DT

Full List of Drug(s) Transported by This DT

 Approved Drug

 Click to Show/Hide the Full List of Drug:            1 Drugs in Total
Drug Name Highest Status Detail Indication ICD 11 Ref
Arginine
 Approved Drug Info Growth hormone deficiency 5A61 [1]

Endogenous Metabolites (EMs) Handled by This DT

 Endogenous Metabolites (EMs)

 Click to Show/Hide the Full List of EMs:            1 EMs in Total
EM Name PubChem CID Detail Experimental Material Ref
Amino acid unspecific N.A. EM Info Identified using MAC-T cells [2]

Drug-DT Affinity Assessed by Cell Line

 Approved Drug

 Click to Show/Hide the Full List of Drug:            1 Drugs in Total
Drug Name Highest Status Detail Cell Line Affinity Ref
Arginine Approved Drug Info Human embryonic kidney cells-293T Km = 39000 microM [1]
References
1 Metabolism. Lysosomal amino acid transporter SLC38A9 signals arginine sufficiency to mTORC1. Science. 2015 Jan 9;347(6218):188-94.
2 Varying the ratio of Lys:Met while maintaining the ratios of Thr:Phe, Lys:Thr, Lys:His, and Lys:Val alters mammary cellular metabolites, mammalian target of rapamycin signaling, and gene transcription. J Dairy Sci. 2018 Feb;101(2):1708-1718.

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