Table 3 Nucleotide pools in E. coli during stringent response. E. coli cultures were grown in defined minimal medium MOPS supplemented with 0.4% glucose at 37 °C with vigorous aeration until OD600 0.5. Then, stringent response was induced by mupirocin at 150 µg/ml (3 × MIC), and samples were withdrawn for nucleotide measurements at times indicated. The data are plotted as a function of time on (Fig. 5). 95% CI: 95% confidence interval. NA: not available.
Nucleotide | Quotient: mean[95% CI], % | |||||||
|---|---|---|---|---|---|---|---|---|
0 min | 1 min | 2 min | 4 min | 10 min | 15 min | 30 min | ||
Adenosines | ATP | 79[73;86] | 83[73;93] | 85[81;90] | 86[80;92] | 87[80;94] | 86[80;93] | 82[77;87] |
ADP | 19[16;23] | 13[7.4;24] | 12[9.1;16] | 11[7.8;16] | 10[6.6;16] | 13[11;15] | 15 [13;18] | |
AMP | 3.4[2.7;4.3] | 2.8[1.2;6.7] | 2.4[1.7;3.4] | 2.4[1.3;4.5] | 2.1[1.0;4.1] | 3.2[1.9;5.2] | 3.7[2.8;4.8] | |
Guanosines | GTP | 73 [67;79] | 48[25;92] | 30[17;55] | 25[7.7;81] | 23[9.2;59] | 33[23;47] | 32[27;39] |
GDP | 20[16;25] | 10[4.6;22] | 5.4[2.3;13] | 3.6[2.7;4.8] | 3.6[1.9;6.7] | 5.4[3.3;8.9] | 6.2[4.8;8.0] | |
GMP + IMP | 4.4[3.2;6.0] | 3.8[1.3;11] | 2.3[0.69;7.6] | 1.7[0.98;2.8] | 2.1[0.98;4.4] | 3.4[1.7;6.9] | 3.4[2.4;4.9] | |
ppGpp | 1.4[0.85;2.5] | 27[14;53] | 52[37;72] | 60[49;74] | 60[45;78] | 50[40;61] | 47[43;52] | |
pppGpp | NA | 8.4[3.3; 21] | 8.7[3.5; 22] | 5.6[0.38;81] | 6.5[2.0;21] | 7.2[4.4;12] | 8.9[7.5;10] | |
NTPs | CTP | 11[9.5;12] | 14[11;17] | 16[13;20] | 18[15;21] | 20[19;22] | 21[19;23] | 23[21;25] |
UTP | 14[13;15] | 15[13;17] | 16[14;19] | 17[16;19] | 19[18;19] | 20[18;22] | 23[22;24] | |
ATP | 52[46;57] | 60[51;71] | 60[53;67] | 57[52;63] | 53[47;59] | 51[46;56] | 44[42;46] | |
GTP | 26[24;28] | 15[7.6;28] | 10[5.0;22] | 9.8[5.5;18] | 10[8.2;13] | 10[8.0;13] | 11[8.8;13] | |
AEC | ATP, ADP, AMP | 87[84;90] | 90[84;96] | 91[89;94] | 92[88;96] | 92[88;97] | 90[88;93] | 88[86;91] |