General Information of Drug Transporter (DT)
DT ID	DTD0015 Transporter Info
Gene Name	ABCC4
Protein Name	Multidrug resistance-associated protein 4
Gene ID	10257
UniProt ID	O15439
Genetic Polymorphisms of DT (GPD)
Genetic Polymorphism	rs1059751
Site of GPD	chr13:95020696 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	A>G
Minor Allele Frequency	G=0.4145/2076 (Global)
Allele G	Click to Show/Hide the Full List of Affected Drugs:            1 Drugs in Total
Tenofovir	Drug Info	HIV Infection	Correlated with the increased likelihood of kidney diseases in patients (compare with Allele A)		[ 1]
Genetic Polymorphism	rs11568658
Site of GPD	chr13:95210754 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	C>A
Minor Allele Frequency	A=0.0517/259 (Global)
Genotype AC	Click to Show/Hide the Full List of Affected Drugs:            2 Drugs in Total
Latanoprost	Drug Info	Open-Angle Glaucoma	Correlated with the decreased drug response in patients (compare with genotype CC)		[ 2]
Valganciclovir	Drug Info	Kidney Transplantation	Correlated with the increased neutropenia risk in patients (compare with genotype CC)		[ 3]
Genetic Polymorphism	rs1678387
Site of GPD	chr13:95065652 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	T>C
Minor Allele Frequency	T=0.0978/490 (Global)
Allele T	Click to Show/Hide the Full List of Affected Drugs:            1 Drugs in Total
Bisphosphonates	Drug Info	Osteonecrosis	Correlated with the increased likelihood of osteonecrosis in patients (compare with allele C)		[ 4]
Genetic Polymorphism	rs16950650
Site of GPD	chr13:95123178 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	C>T
Minor Allele Frequency	T=0.0437/219 (Global)
Genotype CT	Click to Show/Hide the Full List of Affected Drugs:            2 Drugs in Total
Irinotecan	Drug Info	Small Cell Carcinoma	Correlated with the decreased overall survival in patients (compare with genotype CC)		[ 5]
Cisplatin	Drug Info	Small Cell Carcinoma	Correlated with the decreased overall survival in patients (compare with genotype CC)		[ 5]
Genetic Polymorphism	rs17268282
Site of GPD	chr13:95273060 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	G>T
Minor Allele Frequency	T=0.0389/195 (Global)
Allele T	Click to Show/Hide the Full List of Affected Drugs:            1 Drugs in Total
Furosemide	Drug Info	Heart Failure	Correlated with the increased drug response in patients (compare with allele G)		[ 6]
Genetic Polymorphism	rs7317112
Site of GPD	chr13:95271269 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	A>G
Minor Allele Frequency	G=0.3922/1964 (Global)
Genotype AA	Click to Show/Hide the Full List of Affected Drugs:            1 Drugs in Total
Methotrexate	Drug Info	Precursor Cell Lymphoblastic Leukemia-Lymphoma	Correlated with the increased mucositis risk in patients (compare with genotypes AG + GG)		[ 7]
Genetic Polymorphism	rs9561765
Site of GPD	chr13:95030989 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	G>A
Minor Allele Frequency	A=0.1088/545 (Global)
Genotype AG	Click to Show/Hide the Full List of Affected Drugs:            1 Drugs in Total
Imatinib	Drug Info	Gastrointestinal Stromal Tumors	Correlated with the increased drug response in patients (compare with genotype AA)		[ 8]
Genetic Polymorphism	rs9561778
Site of GPD	chr13:95061461 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	G>A / G>T
Minor Allele Frequency	T=0.1633/818 (Global)
Allele T	Click to Show/Hide the Full List of Affected Drugs:            3 Drugs in Total
Fluorouracil	Drug Info	Breast Neoplasm	Correlated with the increased adverse drug reaction risk in patients (compare with allele G)		[ 9]
Doxorubicin	Drug Info	Breast Neoplasm	Correlated with the increased adverse drug reaction risk in patients (compare with allele G)		[ 9]
Cyclophosphamide	Drug Info	Breast Neoplasm	Correlated with the increased adverse drug reaction risk in patients (compare with allele G); Correlated with the increased gastrointestinal toxicity risk in patients (compare with allele G); Correlated with the increased severity of neutropenia in patients (compare with allele G)		[ 9]
Genetic Polymorphism	rs1751034
Site of GPD	chr13:95062722 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	C>G / C>T
Minor Allele Frequency	C=0.2057/1030 (Global)
Genotype TT	Click to Show/Hide the Full List of Affected Drugs:            1 Drugs in Total
Tenofovir	Drug Info	HIV Infection	Correlated with the increased drug renal clearance, and lower the total area under the plasma concentration-time curve (AUC) in patients (compare with genotypes CC + CT)		[ 10]
Genotypes CC + CT	Click to Show/Hide the Full List of Affected Drugs:            1 Drugs in Total
Tenofovir	Drug Info	HIV Infection	Correlated with the increased intracellular tenofovir diphosphate (tFV-DP) concentrations in patients (compare with Genotype TT)		[ 11]
Genetic Polymorphism	rs3742106
Site of GPD	chr13:95021537 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	A>C
Minor Allele Frequency	C=0.4149/2078 (Global)
Genotypes AC + CC	Click to Show/Hide the Full List of Affected Drugs:            1 Drugs in Total
Tenofovir	Drug Info	HIV Infection	Correlated with the increased drug concentrations in patients (compare with genotype AA)		[ 12]
Genetic Polymorphism	rs3765534
Site of GPD	chr13:95163161 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	C>T
Minor Allele Frequency	T=0.0312/156 (Global)
Genotype TT	Click to Show/Hide the Full List of Affected Drugs:            1 Drugs in Total
Mercaptopurine	Drug Info	Inflammatory Bowel Diseases	Correlated with the increased sensitivity to drug in nA18967 cells (compare with genotype CC)		[ 13]
Genotypes CT + TT	Click to Show/Hide the Full List of Affected Drugs:            2 Drugs in Total
Azathioprine	Drug Info	Inflammatory Bowel Diseases	Correlated with the increased likelihood of leukopenia in patients (compare with genotype CC)		[ 14]
Mercaptopurine	Drug Info	Inflammatory Bowel Diseases	Correlated with the increased likelihood of leukopenia in patients (compare with genotype CC)		[ 14]
Genetic Polymorphism	rs9516519
Site of GPD	chr13:95020203 (GRCh38.p12)
GPD Type	SNP
Allele(s) in dbSNP	T>C / T>G
Minor Allele Frequency	G=0.0591/296 (Global)
Genotypes GG + GT	Click to Show/Hide the Full List of Affected Drugs:            1 Drugs in Total
Methotrexate	Drug Info	Acute B-Cell Leukemia	Correlated with the decreased drug plasma level in patients (compare with Genotype TT); Correlated with the decreased toxicity risk in patients (compare with Genotype TT)		[ 15]
References
1	A Single-Nucleotide Polymorphism in ABCC4 Is Associated with Tenofovir-Related Beta2-Microglobulinuria in Thai Patients with HIV-1 Infection. PLoS One. 2016 Jan 25;11(1):e0147724.
2	Influence of PTGS1, PTGFR, and MRP4 genetic variants on intraocular pressure response to latanoprost in Chinese primary open-angle glaucoma patients. Eur J Clin Pharmacol. 2015 Jan;71(1):43-50.
3	Multidrug resistance-associated protein 4 (MRP4) controls ganciclovir intracellular accumulation and contributes to ganciclovir-induced neutropenia in renal transplant patients. Pharmacol Res. 2016 Sep;111:501-508.
4	Genomewide pharmacogenetics of bisphosphonate-induced osteonecrosis of the jaw: the role of RBMS3. Oncologist. 2012;17(2):279-87.
5	A genome-wide association study of survival in small-cell lung cancer patients treated with irinotecan plus cisplatin chemotherapy. Pharmacogenomics J. 2014 Feb;14(1):20-7.
6	A pharmacogenetic investigation of intravenous furosemide in decompensated heart failure: a meta-analysis of three clinical trials. Pharmacogenomics J. 2017 Mar;17(2):192-200.
7	Genetic and metabolic determinants of methotrexate-induced mucositis in pediatric acute lymphoblastic leukemia. Pharmacogenomics J. 2015 Jun;15(3):248-54.
8	Polymorphisms in OCTN1 and OCTN2 transporters genes are associated with prolonged time to progression in unresectable gastrointestinal stromal tumours treated with imatinib therapy. Pharmacol Res. 2013 Feb;68(1):1-6.
9	Association study of genetic polymorphism in ABCC4 with cyclophosphamide-induced adverse drug reactions in breast cancer patients. J Hum Genet. 2009 Oct;54(10):564-71.
10	The effect of lopinavir/ritonavir on the renal clearance of tenofovir in HIV-infected patients. Clin Pharmacol Ther. 2008 Feb;83(2):265-72.
11	Clinical and genetic determinants of intracellular tenofovir diphosphate concentrations in HIV-infected patients. J Acquir Immune Defic Syndr. 2008 Mar 1;47(3):298-303.
12	Influence of ABCC2 and ABCC4 polymorphisms on tenofovir plasma concentrations in Thai HIV-infected patients. Antimicrob Agents Chemother. 2015;59(6):3240-5.
13	Transporter-mediated protection against thiopurine-induced hematopoietic toxicity. Cancer Res. 2008 Jul 1;68(13):4983-9.
14	The multidrug-resistance protein 4 polymorphism is a new factor accounting for thiopurine sensitivity in Japanese patients with inflammatory bowel disease. J Gastroenterol. 2010 Oct;45(10):1014-21.
15	Polymorphisms in the methotrexate transport pathway: a new tool for MTX plasma level prediction in pediatric acute lymphoblastic leukemia. Pharmacogenet Genomics. 2013 Feb;23(2):53-61.

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