ABCB1 p.Gly102Arg
Predicted by SNAP2: | A: N (78%), C: N (57%), D: N (72%), E: N (82%), F: D (53%), H: N (61%), I: N (61%), K: N (78%), L: N (72%), M: N (61%), N: N (82%), P: N (66%), Q: N (78%), R: N (66%), S: N (87%), T: N (82%), V: N (66%), W: D (80%), Y: N (53%), |
Predicted by PROVEAN: | A: N, C: N, D: N, E: N, F: N, H: N, I: N, K: N, L: N, M: N, N: N, P: N, Q: N, R: N, S: N, T: N, V: N, W: N, Y: N, |
[switch to compact view]
Comments [show]
None has been submitted yet.
[hide] Additive effects of drug transporter genetic polym... Cancer Chemother Pharmacol. 2010 May;66(1):95-105. Epub 2009 Sep 22. Sai K, Saito Y, Maekawa K, Kim SR, Kaniwa N, Nishimaki-Mogami T, Sawada J, Shirao K, Hamaguchi T, Yamamoto N, Kunitoh H, Ohe Y, Yamada Y, Tamura T, Yoshida T, Matsumura Y, Ohtsu A, Saijo N, Minami H
Additive effects of drug transporter genetic polymorphisms on irinotecan pharmacokinetics/pharmacodynamics in Japanese cancer patients.
Cancer Chemother Pharmacol. 2010 May;66(1):95-105. Epub 2009 Sep 22., [PMID:19771428]
Abstract [show]
PURPOSE: Effects of genetic polymorphisms/variations of ABCB1, ABCC2, ABCG2 and SLCO1B1 in addition to "UGT1A1*28 or *6" on irinotecan pharmacokinetics/pharmacodynamics in Japanese cancer patients were investigated. METHODS: Associations between transporter haplotypes/variations along with UGT1A1*28 or *6 and SN-38 area under the time-concentration curve (AUC) or neutropenia were examined in irinotecan monotherapy (55 patients) and irinotecan-cisplatin-combination therapy (62 patients). RESULTS: Higher SN-38 AUC values were observed in ABCB1 2677G>T (A893S) (*2 group) for both regimens. Associations of grade 3/4 neutropenia were observed with ABCC2 -1774delG (*1A), ABCG2 421C>A (Q141K) and IVS12 + 49G>T ((#) IIB) and SLCO1B1 521T>C (V174A) (*15 x 17) in the irinotecan monotherapy, while they were evident only in homozygotes of ABCB1*2, ABCG2 (#) IIB, SLCO1B1*15 x 17 in the cisplatin-combination therapy. With combinations of haplotypes/variations of two or more genes, neutropenia incidence increased, but their prediction power for grade 3/4 neutropenia is still unsatisfactory. CONCLUSIONS: Certain transporter genotypes additively increased irinotecan-induced neutropenia, but their clinical importance should be further elucidated.
Comments [show]
None has been submitted yet.
No. Sentence Comment
86 = UGT1A1*6 or *28. a BJL contains -1789G[A, *2 (block 1) = 325G[A (E109K), *3 (block 1) = 304G[A (G102R); b *2 (block 2) contains 2677G[T (A893S); c *1b (block 3) = IVS27-182G[T, *2 (block 3) = 3751G[ A (V1251I); d *1A contains -1774delG; e IIB contains 421C[A (Q141K) and IVS12 ?
X
ABCB1 p.Gly102Arg 19771428:86:98
status: NEW124 patients who experienced grade 4 neutropenia ID Gene Genetic variation Nucleotide change (amino acid substitution) Haplotypea b1 ABCB1 304G[C (G102R) Block 1 *3 b2(B)b 1804G[A (D602N) Block 2 *12 b3(B)b 1342G[A (E448K) Block 2 *14 b4 3043A[G (T1015A) Block 2 *16 b5 3751G[A (V1251I) Block 3 *2 c1 ABCC2 1177C[T (R393W) *7 g1 ABCG2 376C[T (Q126X) Block 1 *4 g2 1465T[C (F489L) Block 2 *2 g3 1723C[T (R575X) Block 2 *5 s1(S)c SLCO1B1 1007C[G (P336R) s2 311T[A (M104K) u1 UGT1A1 -3279T[G, 1941C[G # 60-# IB (?/?)
X
ABCB1 p.Gly102Arg 19771428:124:143
status: NEW[hide] Genetic variations and haplotype structures of the... Ann Hum Genet. 2006 Sep;70(Pt 5):605-22. Sai K, Itoda M, Saito Y, Kurose K, Katori N, Kaniwa N, Komamura K, Kotake T, Morishita H, Tomoike H, Kamakura S, Kitakaze M, Tamura T, Yamamoto N, Kunitoh H, Yamada Y, Ohe Y, Shimada Y, Shirao K, Minami H, Ohtsu A, Yoshida T, Saijo N, Kamatani N, Ozawa S, Sawada J
Genetic variations and haplotype structures of the ABCB1 gene in a Japanese population: an expanded haplotype block covering the distal promoter region, and associated ethnic differences.
Ann Hum Genet. 2006 Sep;70(Pt 5):605-22., [PMID:16907707]
Abstract [show]
As functional ABCB1 haplotypes were recently reported in the promoter region of the gene, we resequenced the ABCB1 distal promoter region, along with other regions (the enhancer and proximal promoter regions, and all 28 exons), in a total of 533 Japanese subjects. Linkage disequilibrium (LD) analysis based on 92 genetic variations revealed 4 LD blocks with the same make up as previously described (Blocks -1, 1, 2 and 3), except that Block 1 was expanded to include the distal promoter region, and that a new linkage between polymorphisms -1,789G>A in the distal promoter region and IVS5 + 123A>G in intron 5 was identified. We re-assigned Block 1 haplotypes, and added novel haplotypes to the other 3 blocks. The reported promoter haplotypes were further classified into several types according to tagging variations within Block 1 coding or intronic regions. Our current data reconfirm the haplotype profiles of the other three blocks, add more detailed information on functionally-important haplotypes in Block 1 and 2 in the Japanese population, and identified differences in haplotype profiles between ethnic groups. Our updated analysis of ABCB1 haplotype blocks will assist pharmacogenetic and disease-association studies carried out using Asian subjects.
Comments [show]
None has been submitted yet.
No. Sentence Comment
67 Novel variations included 8 nonsynonymous substitutions: 49T>C(F17L), 144G>T(K48N), 304G>C(G102R), 1342G>A(E448K), 1804G>A(D602N), 2359C>T (R787W), 2719G>A(V907I) and 3043A>G(T1015A); and 2 synonymous substitutions: 354C>T (Y118Y) and 447A>G(K149K); with frequencies ranging from 0.001 to 0.005.
X
ABCB1 p.Gly102Arg 16907707:67:91
status: NEW93 Haplotype groups * 2 to * 5 were defined by the nonsynonymous SNPs 325G>A(E109K) (* 2), 304G>C(G102R) (* 3), 49T>C(F17L) (* 4) and 144G>T(K48N) (* 5).
X
ABCB1 p.Gly102Arg 16907707:93:95
status: NEW215 As indicated by the cladograms in the previous section, our study revealed that subgroup A, previously classified as wild-type, could be further classified into six types: the major * 1a type without any marker variation and five other types with either IVS1 -78delG (* 1c), IVS4 - 25G>T (* 1d), 325G>A(E109K) (* 2a), IVS5 + 123A>G (* 1n), or 304 G>C(G102R) (* 3a).
X
ABCB1 p.Gly102Arg 16907707:215:351
status: NEW264 In total our data revealed 11 tagging variations in Block 1: -1789G>A, -1461 -1457CATCdel, -371A>G, -145C>G, -129T>C, IVS1 - 78delG, IVS4 - 25G>T, 304G>C (G102R), 325G>A (E109K), IVS + 76T>G and IVS5 + 123A>G.
X
ABCB1 p.Gly102Arg 16907707:264:155
status: NEW