General Information of Drug Transporter (DT)
DT ID DTD0009 Transporter Info
Gene Name SLC22A3
Protein Name Organic cation transporter 3
Gene ID
6581
UniProt ID
O75751
Genetic Polymorphisms of DT (GPD)
Genetic Polymorphism rs2076828
Site of GPD chr6:160451754 (GRCh38.p12)
GPD Type SNP
Allele(s) in dbSNP C>G
Minor Allele Frequency G=0.4866/2437 (Global)
 Allele G Click to Show/Hide the Full List of Affected Drugs:           3 Drugs in Total
Metformin Drug Info Healthy Individuals Correlated with the decreased drug response in healthy individuals (compare with Allele C) [ 1]
Metformin Drug Info Diabetes Mellitus Correlated with the decreased expression of SLC22A3 (compare with Allele C) [ 1]
Metformin N.A. Non-small Cell Lung Carcinoma Allele G is associated with decreased response to metformin in healthy individuals as compared to allele C. [ 1]
 Genotype CC Click to Show/Hide the Full List of Affected Drugs:           1 Drugs in Total
Metformin N.A. Polycystic Ovary Syndrome Patients with the CC genotype may have a decreased response to metformin as compared to patients with the CG and GG genotype. Other genetic and clinical factors may also influence response to metformin. [ 1]
 Genotype CG Click to Show/Hide the Full List of Affected Drugs:           1 Drugs in Total
Metformin N.A. Polycystic Ovary Syndrome Patients with the CG genotype may have a decreased response to metformin as compared to patients with the GG genotype and an increased response to metformin as compared to patients with the CC genotype. Other genetic and clinical factors may also influence response to metformin. [ 1]
 Genotype GG Click to Show/Hide the Full List of Affected Drugs:           1 Drugs in Total
Metformin N.A. Polycystic Ovary Syndrome Patients with the GG genotype may have a decreased response to metformin as compared to patients with the CG and CC genotype. Other genetic and clinical factors may also influence response to metformin. [ 1]
Genetic Polymorphism rs8187725
Site of GPD chr6:160437122 (GRCh38.p12)
GPD Type SNP
Allele(s) in dbSNP C>A / C>T
 Allele T Click to Show/Hide the Full List of Affected Drugs:           4 Drugs in Total
Metformin Drug Info Diabetes Mellitus Correlated with the decreased drug metabolism (compare with allele C) [ 2]
Catecholamines N.A. Non-small Cell Lung Carcinoma Allele T is associated with decreased metabolism of catecholamines and metformin as compared to allele C. [ 2]
Metformin N.A. Non-small Cell Lung Carcinoma Allele T is associated with decreased metabolism of catecholamines and metformin as compared to allele C. [ 2]
Catecholamines N.A. . Correlated with the decreased drug metabolism (compare with allele C) [ 2]
 Genotype CC Click to Show/Hide the Full List of Affected Drugs:           2 Drugs in Total
Catecholamines N.A. Polycystic Ovary Syndrome Cells with the CC genotype may have increased uptake of catecholamines or metformin as compared to those with the TT genotype. Other factors may also influence uptake of these drugs. [ 2]
Metformin N.A. Polycystic Ovary Syndrome Cells with the CC genotype may have increased uptake of catecholamines or metformin as compared to those with the TT genotype. Other factors may also influence uptake of these drugs. [ 2]
 Genotype CT Click to Show/Hide the Full List of Affected Drugs:           2 Drugs in Total
Catecholamines N.A. Polycystic Ovary Syndrome Cells with the CT genotype may have increased uptake of catecholamines or metformin as compared to those with the TT genotype, or decreased uptake as compared to those with the CC genotype. Other factors may also influence uptake of these drugs. [ 2]
Metformin N.A. Polycystic Ovary Syndrome Cells with the CT genotype may have increased uptake of catecholamines or metformin as compared to those with the TT genotype, or decreased uptake as compared to those with the CC genotype. Other factors may also influence uptake of these drugs. [ 2]
 Genotype TT Click to Show/Hide the Full List of Affected Drugs:           2 Drugs in Total
Catecholamines N.A. Polycystic Ovary Syndrome Cells with the TT genotype may have decreased uptake of catecholamines or metformin as compared to those with the CC genotype. Other factors may also influence uptake of these drugs. [ 2]
Metformin N.A. Polycystic Ovary Syndrome Cells with the TT genotype may have decreased uptake of catecholamines or metformin as compared to those with the CC genotype. Other factors may also influence uptake of these drugs. [ 2]
Genetic Polymorphism rs3127602
Site of GPD chr6:160471209 (GRCh38.p12)
GPD Type SNP
Allele(s) in dbSNP C>G / C>T
Minor Allele Frequency C=0.7670/1517 (Global)
 Allele T Click to Show/Hide the Full List of Affected Drugs:           1 Drugs in Total
Metformin N.A. Non-small Cell Lung Carcinoma Allele T is associated with increased response to metformin in people with Diabetes Mellitus, Type 2 as compared to allele C. [ 3]
References
1 Targeted disruption of organic cation transporter 3 attenuates the pharmacologic response to metformin. Mol Pharmacol. 2015 Jul;88(1):75-83.
2 Role of organic cation transporter 3 (SLC22A3) and its missense variants in the pharmacologic action of metformin. Pharmacogenet Genomics. 2010 Nov;20(11):687-99.
3 Using EHR-Linked Biobank Data to Study Metformin Pharmacogenomics. Stud Health Technol Inform. 2015;210:914-8.

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