ABCB1 p.Leu65Ala
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PMID: 23104431
[PubMed]
Gozalpour E et al: "Interaction of digitalis-like compounds with p-glycoprotein."
No.
Sentence
Comment
46
However, transport activity was preserved in L65A, I306A, I340A, F942A, and V982A.
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ABCB1 p.Leu65Ala 23104431:46:45
status: NEW62 Ten different P-gp mutants were produced: L65A, I306A, F336A, I340A, F343A, F728A, F942A, T945A, L975A, and V982A and all mutations were confirmed by sequencing of full-length P-gp cDNA.
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ABCB1 p.Leu65Ala 23104431:62:42
status: NEW122 All the indicated amino acids were replaced by alanine to remove the side chain of the residue (L65A, I306A, F336A, I340A, F343A, F728A, F942A, T945A, L975A, and V982A).
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ABCB1 p.Leu65Ala 23104431:122:96
status: NEW132 NMQ transport activity of mutants L65A, F336A, I340A, F942A, andV982A as compared with wild-type P-gp ranged from 60 to 150%, whereas NMQ transport activity of I306A, F343A, F728A, T945A, and L975A varied between 8 and 30%.
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ABCB1 p.Leu65Ala 23104431:132:34
status: NEW135 In addition, five P-gp mutants (L65A, F336A, I340A, F942A, and V982A), for which NMQ transport activity was at least 50% of wild-type transport, were selected.
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ABCB1 p.Leu65Ala 23104431:135:32
status: NEW138 Comparing the IC50 value of the mutants with those of the wild type (mutant IC50 /wild-type IC50 ), L65A, and V982A showed similar values as wild type (0.6-2.2).
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ABCB1 p.Leu65Ala 23104431:138:100
status: NEW180 Fig. 5.ߓ Western blot analysis (A) and NMQ transport activity of wild type and L65A, I306A, F336A, I340A, F343A, F728A, F942A, T945A, L975A, and V982A mutant P-gp (B).
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ABCB1 p.Leu65Ala 23104431:180:85
status: NEW202 NMQ transport activity of the second group mutants (L65A, F336A, I340A, F942A, and V982A) was not significantly different from that of the wild-type P-gp (60-150%).
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ABCB1 p.Leu65Ala 23104431:202:52
status: NEW208 Table 1 The IC50 Values of DLCs Against Wild-Type and Mutant P-gp-Mediated [3 H]-NMQ Transport P-gp Cymarin Digitoxin Digoxin Peruvoside Proscillaridin A Strophanthidol IC50 (&#b5;M) RIC50 IC50 (&#b5;M) RIC50 IC50 (&#b5;M) RIC50 IC50 (&#b5;M) RIC50 IC50 (&#b5;M) RIC50 IC50 (&#b5;M) RIC50 Wild type 432ߙ&#b1;ߙ90 9ߙ&#b1;ߙ2.1 188ߙ&#b1;ߙ24 214ߙ&#b1;ߙ41 25ߙ&#b1;ߙ3.5 242ߙ&#b1;ߙ61 L65A 800ߙ&#b1;ߙ99 1.9 17ߙ&#b1;ߙ3.4 1.9 217ߙ&#b1;ߙ33 1.2 469ߙ&#b1;ߙ73* 2.2 48ߙ&#b1;ߙ7.2 1.9 186ߙ&#b1;ߙ18 0.8 F336A 979ߙ&#b1;ߙ48 2.3 14ߙ&#b1;ߙ1.9 1.6 524ߙ&#b1;ߙ114 2.8 528ߙ&#b1;ߙ92** 2.5 111ߙ&#b1;ߙ19** 4.4 291ߙ&#b1;ߙ45 1.2 I340A 1181ߙ&#b1;ߙ103** 2.7 19ߙ&#b1;ߙ4.3 2.0 439ߙ&#b1;ߙ138 2.3 527ߙ&#b1;ߙ37** 2.5 79ߙ&#b1;ߙ21* 3.1 156ߙ&#b1;ߙ14 0.6 F942A 821ߙ&#b1;ߙ256 1.9 8ߙ&#b1;ߙ1.0 0.9 558ߙ&#b1;ߙ145 3.0 273ߙ&#b1;ߙ29 1.3 18ߙ&#b1;ߙ1 0.7 187ߙ&#b1;ߙ24 0.8 V982A 620ߙ&#b1;ߙ106 1.4 12ߙ&#b1;ߙ2.1 1.3 345ߙ&#b1;ߙ73 1.8 291ߙ&#b1;ߙ10 1.4 22ߙ&#b1;ߙ3.4 0.9 144ߙ&#b1;ߙ9 0.6 Note.
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ABCB1 p.Leu65Ala 23104431:208:448
status: NEW213 Inhibition of NMQ transport by L65A, F942A, and V982A with six DLCs showed that in only one case the mutation caused a significant difference in the IC50 value (ratio of 2.2) of the DLCs compared with wild-type P-gp.
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ABCB1 p.Leu65Ala 23104431:213:31
status: NEW