Gene dbSNP Genetic Polymorphism Minor Allele Frequency (%) Position Functional Change Protein Expression Transporter Kinetic Characteristics
SLC22A6/OAT1/NKT   -3655G>A [55] 0.5 [55] 5’ UTR N.D. N.D. N.D.
rs4149171 -560A>G [51,54] 29.5 [51] 5’ UTR N.D. N.D. N.D.
  -453G>A [51,54] 27.2 [51] 5’ UTR N.D. N.D. N.D.
  -418C>T [51] 0.5 [51] 5’ UTR N.D. N.D. N.D.
rs4149170 -127G>A [52] 26 [52] 5’ UTR N.D. N.D. N.D.
rs57677322 -302C>T [51] 1.6 [51] 5’ UTR N.D. N.D. N.D.
rs4149171 -20A>G [52] 27 [52] 5’ UTR N.D. N.D. N.D.
rs955434 G>A [56] N.D 5’ SLC22A6 TOR CL no change [56] N.D. N.D.
  20T>C [50] 0.5 [50] Leu7Pro N.D. N.D. N.D.
rs11568626 149G>A [2,50,51,53] 1.1 [2], 0.5 [50], 4.2 [51], 1.7 [53] Arg50His PAH [2,51] / OTA [2] / MTX [2] uptake no change N.D. Km and Vmax of PAH / OTA no change [2] Km and Vmax of ADV / CDV / TNV ↓ [51]
rs11568630 180C>T [2] 0.4 [2] Lys60Lys N.D. N.D. N.D.
rs11568630 180C>T [51] 0.6 [51] Asn60Asn N.D. N.D. N.D.
rs11568625 186G>A [2] 0.2 [2] Gly62Gly N.D. N.D. N.D.
rs11568628 252G>T [2] 3.6 [2], 4 [50], 2.7 [51] Pro84Pro N.D. N.D. N.D.
rs11568627 311C>T [2] 0.2 [2] Pro104Leu PAH / OTA / MTX uptake no change [2] N.D. N.D.
  rs11568629 351A>G [2,50,51] 3.6 [2], 4 [50], 3.2 [51] Pro117Pro N.D. N.D. N.D.
    582C>G [51] 0.7 [51] Leu194Leu N.D. N.D. N.D.
  rs11568623 677T>C [2] 0.2 [2] Ile226Thr PAH / OTA / MTX uptake no change [2] N.D. N.D.
  rs11568624 767C>T [2] 0.2 [2] Ala256Val PAH / OTA / MTX uptake no change [2] N.D. N.D.
    837G>A [51] 0.6 [51] Gly279Gly N.D. N.D. N.D.
  rs138717295 873C>T [51] 0.6 [51] Val291Val N.D. N.D. N.D.
  rs45607933 877C>T [2] 0.6 [2] Arg293Trp PAH / OTA / MTX uptake no change [2] N.D. Km and Vmax of PAH / OTA no change [2]
  rs11568619 1233C>T [2,50] 0.2 [2], 1 [50] Leu411Leu N.D. N.D. N.D.
  rs11568634 1361G>A [2] 0.2 [2] Arg454Gln PAH / OTA / MTX transport loss [2] ADV CL no change [2] N.D. N.D.
    1377A>G [52] 1 [52] Gly459Gly N.D. N.D. N.D.
  rs11568635 1470C>T [2,51] 0.4 [2], 0.5 [51] Tyr490Tyr N.D. N.D. N.D.
    1575A>T [51] 0.5 [51] Lys525Ile PAH uptake no change [51] N.D. Km and Vmax of ADV / CDV / TNV no change [51]
    55G>T [52] 24 [52] Intron1 N.D. N.D. N.D.
  rs10897312 136C>T [52] 30 [52], 23 [53] Intron1 N.D. N.D. N.D.
    150G>A [54] N.D. Intron3 N.D. N.D. N.D.
    1515C>T [51] 1.2 [51] Intron3 N.D. N.D. N.D.
    211A>C [54] N.D. Intron4 N.D. N.D. N.D.
  rs2276300 33C>T [51,52,54] 5.6 [51], 16 [52] Intron5 N.D. N.D. N.D.
    131C>T [51] 1.1 [51] Intron5 N.D. N.D. N.D.
  rs4149174 168C>T [52,54] 45 [52] Intron6 N.D. N.D. N.D.
  rs3017670 -44T>C [52] 5 [52] Intron8 N.D. N.D. N.D.
    2017G>A [51] 8.3 [51] Intron8 N.D. N.D. N.D.
    2029T>C [51] 0.5 [51] Intron8 N.D. N.D. N.D.
    2061C>T [51] 12 [51] Intron8 N.D. N.D. N.D.
  rs10897312 C>T [56] N.D. Intron TOR CL no change [56] N.D. N.D.
    -8472T>C [51] 0.5 [51] 3’ UTR N.D. N.D. N.D.
  rs736342 C>T [56] N.D. 3’SLC22A6 TOR CL no change [56] N.D. N.D.
SLC22A7/OAT2/NLT rs73625099 329C>T [50] 0.5 [50] Thr110Ile N.D. N.D. N.D.
  571G>A [50] 0.5 [50] Val192Ile N.D. N.D. N.D.
rs2270860 1269C>T [50,54] 40 [50], 14 [52] Ser423Ser N.D. N.D. N.D.
rs70953693 1520G>A [50] 0.5 [50] Gly507Asp N.D. N.D. N.D.
rs70953694 1539G>A [52] 2.0 [52] Thr513Thr N.D. N.D. N.D.
  269G>A [52] 3.0 [52] intron 4 N.D. N.D. N.D.
  842G>A [54] N.D. intron 4 N.D. N.D. N.D.
rs1574430 33C>A [52,54] 22.0 [52] intron 5 N.D. N.D. N.D.
rs2841648 183A>C [52,54] 22.0 [52] intron 5 N.D. N.D. N.D.
rs2841647 184A>C [52,54] 22.0 [52] intron 5 N.D. N.D. N.D.
  154T>C [52] 1.0 [52] intron 7 N.D. N.D. N.D.
rs4149178 206A>G [52] 2.0 [52] intron 9 N.D. N.D. N.D.
  1792A>G [54] N.D. 3’ UTR N.D. N.D. N.D.
  1386G>A [54] N.D. 3’ FR N.D. N.D. N.D.
SLC22A8/OAT3/ROCT   -2521C>T [55] 0.5 [55] 5’ UTR N.D. N.D. N.D.
  -2520A>G [55] 0.5 [55] 5’ UTR N.D. N.D. N.D.
  -1901C>G [55] 0.5 [55] 5’ UTR N.D. N.D. N.D.
rs11231306 -1882G>C [55] 46.9 [55] 5’ UTR N.D. N.D. N.D.
  -1851G>A [55] 20.3 [55] 5’ UTR N.D. N.D. N.D.
rs3840764 -659_-658G>ins [54,57] 18.3 [57] 5’ FR N.D. N.D. N.D.
rs10792369 T>C [56] 29 [56] 5’ UTR TOR CL no change [56] N.D. N.D.
rs948980 -578C>G [54,57] 18.3 [57] 5’ FR N.D. N.D. N.D.
rs948979 -515A>C [56,57] 23 [56], 15.9 [57] 5’ UTR TOR CL no change [56] Promoter activity and mRNA expression no change [57] N.D.
rs3809069 -461T>C [54,57] 26.2 [57] 5’ FR N.D. N.D. N.D.
ss94002361 -19C>A [57] 1.6 [57] 5’ UTR N.D. N.D. N.D.
  -16G>A [54] N.D. 5’ UTR N.D. N.D. N.D.
  30A>G [55] 0.5 [55] 5’ UTR N.D. N.D. N.D.
  41C>A [55] 0.5 [55] 5’ UTR N.D. N.D. N.D.
rs4149180 153G>A [50,54,58] 8 [50], 7.5 [58] Pro51Pro N.D. N.D. N.D.
rs11568479 387C>A [1] 0.2 [1] Phe129Leu ES / CIM uptake no change [1] N.D. N.D.
rs45566039 445C>A [1] 0.4 [14,15] Arg149Ser ES / CIM uptake lost [1] N.D. N.D.
rs201886442 523A>G [50] 0.5 [50] Ile175Val N.D. N.D. N.D.
rs11568496 715C>T [1] 0.2 [14,15] Gln239Ter ES / CIM uptake lost [1] N.D. N.D.
rs2276299 723T>A [50,54,56,58] 24 [50], 13 [56], 27.5 [58] Thr241Thr TOR [56] / PRA [58] CL no change N.D. N.D.
rs11568493 779T>G [1] 0.2 [14,15] Ile260Arg ES / CIM uptake lost [1] N.D. N.D.
rs11568492 829C>T [1] 0.2 [14,15] Arg277Trp ES uptake ↓ / CIM uptake no change [1] N.D. N.D.
rs45438191 842T>C [1] 1.7 [1] Val281Ala ES / CIM uptake no change [1] N.D. N.D.
rs11568482 913A>T [1] 0.9 [1,59] Ile305Phe ES uptake ↓ / CIM uptake ↑ [1] N.D. Km and Vmax of ES and CIM no change [1]
rs11568481 929C>T [1] 0.2 [1] Ala310Val ES / CIM uptake no change [1] N.D. N.D.
  1166C>T [58] 0.8 [58] Ala389Val PRA CL no change [58] N.D. N.D.
rs11568497 1195G>T [1] 0.2 [1] Ala399Ser ES / CIM uptake no change [1] N.D. N.D.
rs11568486 1342G>A [1] 0.7 [1] Val448Ile ES / CIM uptake no change [1] N.D. Km and Vmax, of ES and CIM no change [1]
  177T>C [54] N.D. intron 2 N.D. N.D. N.D.
  6201T>G [54] N.D. intron 2 N.D. N.D. N.D.
  79G>C [54] 31.7 [58] intron 3 N.D. N.D. N.D.
  524T>C [54] N.D. intron 5 N.D. N.D. N.D.
  386G>A [54] N.D. intron 7 N.D. N.D. N.D.
rs953894 754G>A [54,58] 25 [56] intron 7 TOR CL no change [56] N.D. N.D.
  211_212AA>del [54] N.D. intron 8 N.D. N.D. N.D.
  81G>A [54,58] 10.8 [58] intron 9 N.D. N.D. N.D.
rs2187383 G>T [56] 36 [56] intron TOR CL no change [56] N.D. N.D.
rs4963326 C>T [56] 31 [56] intron TOR CL no change [56] N.D. N.D.
SLC22A11/OAT4 rs11231809 A>T [56] 43 [56] 5’ SLC22A11 TOR CL ↓ [56] N.D. N.D.
rs4930423 A>C [56] 44 [56] 5’ SLC22A11 TOR CL ↑ [56] N.D. N.D.
rs3759053 -18C>T [56,57] 45 [56], 3.2 [57] 5’ PR TOR CL ↓ [56] Promoter activity and mRNA expression no change [57] N.D.
rs75976740 37G>A [50,62] 0.5 [50] Val13Met ES uptake no change [62] N.D. N.D.
rs11231819 86T>C [61,62] N.D. Leu29Pro ES [61,62] / OTA / UA [61] uptake loss Minimal to no protein [61] ≤ 10 of WT [62] N.D.
rs11231820 91A>G [61,62] N.D. Ile31Val ES [62] / OTA / UA [61] uptake no change N.D. N.D.
rs35008345 142C>T [50,61,62] 0.5 [50], 0.78 [61] Arg48Ter ES [61,62] OTA / UA [61] uptake loss Minimal to no protein [61] ↓ [62] N.D.
rs200043601 185C>G [50,62] 0.5 [50] Thr62Arg ES uptake no change [62] N.D. N.D.
rs2277313 312C>T [50] 1 [50] Ser104Ser N.D. N.D. N.D.
PMT-2945 361C>T [61] 0.58 [61] Arg121Cys ES / OTA / UA uptake no change [61] N.D. Km of ES no change Vmax, of ES ↓ [61]
rs200017515 400C>T [50] 0.5 [50] Leu134Leu N.D. N.D. N.D.
rs61744144 463G>A [50,61,62] 1 [50], 0.38 [61] Val155Met ES [61,62] / OTA / UA [61] uptake no change N.D. Km and Vmax, of ES no change [61]
rs12785832 464T>G [61,62] 0.18 [61], 1 [62] Val155Gly ES uptake ↓ [62] ES / OTA / UA uptake no change [61] ↓ [62] Km of ES ↑ Vmax, of ES no change [62] Km of ES no change Vmax, of ES ↓ [61]
rs72559737 483C>A [50,60] 3 [50] Gly161Gly N.D. N.D. N.D.
  732C>T [50,62] 0.5 [50] Ala244Val ES uptake no change [62] N.D. N.D.
rs147522958 832G>A [50,60] 0.5 [50] Glu278Lys ES / DHEA / OTA uptake ↓ [60] N.D. Km of ES ↑ Vmax, of ES ↓ [60]
  847C>T [60] 1 [60] Leu283Leu N.D. N.D. N.D.
rs141760078 1015G>A [50,62] 1 [50] Val339Met ES uptake no change [62] N.D. N.D.
PMT-2917 1028G>T [61] 0.18 [61] Arg343Leu ES / OTA / UA uptake no change [61] N.D. N.D.
  1175C>T [50,62] 0.5 [50] Thr392Ile ES uptake ↓ [62] ≤ 10 of WT [62] K of ES no change Vmax, of ES ↓[62]
PMT-2910 1406A>G [61] 0.2 [61] His469Arg ES / OTA / UA uptake loss [61] ↓ [61] N.D.
PMT-2911 1471C>G [61] 0.18 [61] Leu491Val ES / OTA / UA uptake no change [61] N.D. N.D.
rs3782099 C>T [56] 47 [56] intron TOR CL ↓ [56] N.D. N.D.
rs1783811 G>A [56] 31 [56] intron TOR CL ↓ [56] N.D. N.D.
rs2078267 T>C [56] 48 [56] intron TOR CL ↓ [56] N.D. N.D.
rs528211 G>A [56] 35 [56] 3’ SLC22A11 TOR CL no change [56] N.D. N.D.
rs11231825 A>C [56] 1 [56] 3’ SLC22A11 TOR CL no change [56] N.D. N.D.
rs893006 T>G [56] 35 [56] 3’ SLC22A11 TOR CL no change [56] N.D. N.D.
rs476037 C>T [56] 9 [56] 3’ SLC22A11 TOR CL no change [56] N.D. N.D.
Note: ins, insertion; del, deletion; FR, flanking region; PR, promoter region; UTR, untranslated region; ADV, adefovir; CDV, cidofovir; CIM, cimetidine; DHEA-s, dehydroepiandrosterone sulphate; ES, estrone sulphate; MTX, methotrexate; OTA, ochratoxin A; PAH, para-aminohippuric acid; PRA, pravastatin; TNV, tenofovir; TOR, torsemide; UA, uric acid; CL, clearance; ↑, increase; ↓, decrease; Km, Michaelis constant; Vmax, maximum transporter velocity; N.D., not determined.
Table 1: Summary of Genetic Polymorphisms in SLC22A6, SLC22A7, SLC22A8 and SLC22A11.