ABCMdb

ABCC1 p.Gly1207Ser

None has been submitted yet.

Publications

PMID: 11466279 [PubMed] Falcon-Perez JM et al: "Domain interactions in the yeast ATP binding cassette transporter Ycf1p: intragenic suppressor analysis of mutations in the nucleotide binding domains."

No. Sentence Comment

10 Two of the suppressor mutations (V543I and F565L) are located in the first transmembrane domain (TMD1), nine (A1003V, A1021T, A1021V, N1027D, Q1107R, G1207D, G1207S, S1212L, and W1225C) are found within TMD2, one (S674L) is in NBD1, and another one (R1415G) is in NBD2, indicating either physical proximity or functional interactions between NBD1 and the other three domains. Login to comment
120 Certain mutations were detected more than once; these included A1021V (four times), A1021T (three), G1207D (two), G1207S (two), and W1225C (seven). Login to comment
132 Codon change(s)a Amino acid change(s)b 1 TTC3CTC F565L 2 -c - 3 GCC3GTC A1021V 4 GTT3ATT V5431 5 GGT3GAT G1207D 6 GCC3ACC A1021T 7 GCC3ACC A1021T 8 TTA3CTA, TGG3TGC L677L, W1225C 9 - - 10 TGG3TGC W1225C 11 GCC3GTC A1021V 12 TGG3TGC W1225C 13 GCC3GTC A1021V 14 CAG3CGG, TTA3TTG Q1107R, L1418L 15 TCA3TTA S674L 16 TGG3TGT, ACT3GCT W1225C, T1454A 17 TGG3TGT W1225C 18 GGT3GAT G1207D 19 - - 20 TGG3TGC W1225C 21 GCC3ACC A1021T 22 - - 23 GCA3GTA A1003V 24 GGT3AGT G1207S 25 AGA3GGA R1415G 26 GGT3AGT G1207S 27 TCA3TTA S1212L 28 GCC3GTC A1021V 29 AAC3GAC N1027D 30 TGG3TGC W1225C a The nucleotide changes are underlined. Login to comment
138 Two mutations (V543I and F565L) were localized in TMD1, nine substitutions (A1003V, A1021T, A1021V, N1027D, Q1107R, G1207D, G1207S, S1212L, and W1225C) were found within TMD2, one mutation (S674L) was localized in NBD1, and another (R1415G) was in NBD2. Login to comment
149 Although the original mutant failed to grow on 1.5 mM diamide, 11 suppressed mutants grew at this concentration, of which 5 grew at an even higher concentration (V543I, F565L, Q1107R, G1207D, G1207S). Login to comment
154 On the other hand, among the group of mutants that corrected the Cd2ϩ defect to a similar extent (V543I, F565L, A1003V, A1021T, A1021V, Q1107R, G1207D, G1207S, and S1212L), only five (V543I, F565L, Q1107R, G1207D, and G1207S) were able to grow on 2 mM diamide (Fig. 3). Login to comment
175 The highest activity was observed in mutants N1027D (147%) and G1207S (138%), whereas mutants F565L (33%) and G1207D (47%) had the lowest. Login to comment
188 Third, mutant G1207S displayed a Cd2ϩ resistance similar to that of the wild-type cells but an enhanced tolerance to diamide. Login to comment
191 In addition, it revealed a group of suppressor mutants, V543I, F565L, Q1107R, G1207S, and W1225C, with a switch in their resistance profile indicating that Val543, Phe565, Gln1107, Gly1207, and Trp1225 are involved in determination of substrate specificity. Login to comment
197 Effect of the D777N suppressor mutations on the kinetic parameters of LTC4 uptake in vacuolar membrane vesicles Mutant Km (ATP)a Vmax a Wild type 0.05 Ϯ 0.01 4.40 Ϯ 0.31 D777N 1.42 Ϯ 0.18 1.69 Ϯ 0.24 D777N/V543I 1.09 Ϯ 0.28 1.15 Ϯ 0.04 D777N/F565L 1.44 Ϯ 0.30 0.58 Ϯ 0.04 D777N/S674L 1.37 Ϯ 0.26 1.21 Ϯ 0.05 D777N/A1003V 1.55 Ϯ 0.46 1.64 Ϯ 0.13 D777N/A1021T 1.14 Ϯ 0.20 1.28 Ϯ 0.12 D777N/A1021V 1.71 Ϯ 0.39 1.47 Ϯ 0.15 D777N/N1027D 1.16 Ϯ 0.18 2.49 Ϯ 0.34 D777N/Q1107R 1.07 Ϯ 0.09 1.48 Ϯ 0.13 D777N/G1207D 1.06 Ϯ 0.36 0.8 Ϯ 0.06 D777N/G1207S 1.12 Ϯ 0.27 2.33 Ϯ 0.14 D777N/S1212L 1.39 Ϯ 0.12 1.36 Ϯ 0.13 D777N/W1225C -b - D777N/R1415G 1.65 Ϯ 0.44 2.02 Ϯ 0.27 a To determine the apparent Km for ATP (mM), the initial rate of LTC4 uptake in vacuolar membrane vesicles was assayed with 50 nM LTC4 and ATP concentrations ranging from 0.035 to 6 mM (see Materials and Methods). Login to comment
220 Eleven of the 13 suppressors isolated are located in the TMDs, not only in the predicted intracytoplasmic loops (A1021T, A1021V, and N1027D) but included in the membrane (V543I, F565L, A1003V, Q1107R, S1212L, and W1225C) or even facing the vacuolar lumen (G1207D and G1207S). Login to comment
232 In contrast, mutations G1207S and W1225C produce an enhanced Ycf1p function even in the absence of D777N mutation, indicating a different mechanism of suppression that involves a change in Ycf1p substrate specificity. Login to comment
234 Phenotypic characterization of the suppressor mutants separated from the primary mutation showed that five of them, namely V543I, F565L, Q1107R, G1207S, and W1225C, exhibit individual different responses to the substrates tested (Fig. 5). Login to comment