This is cutadapt 1.11 with Python 2.7.12 Command line parameters: --discard-untrimmed --minimum-length 100 -g TTCCTT -e 0 -O 6 - Trimming 1 adapter with at most 0.0% errors in single-end mode ... Finished in 100.24 s (31 us/read; 1.91 M reads/minute). === Summary === Total reads processed: 3,184,960 Reads with adapters: 102,882 (3.2%) Reads that were too short: 10,884 (0.3%) Reads written (passing filters): 91,998 (2.9%) Total basepairs processed: 958,672,960 bp Total written (filtered): 22,752,031 bp (2.4%) === Adapter 1 === Sequence: TTCCTT; Type: regular 5'; Length: 6; Trimmed: 102882 times. No. of allowed errors: 0-6 bp: 0 Overview of removed sequences length count expect max.err error counts 6 299 777.6 0 299 7 771 777.6 0 771 8 39291 777.6 0 39291 9 10467 777.6 0 10467 10 17 777.6 0 17 11 5 777.6 0 5 12 10 777.6 0 10 13 8 777.6 0 8 14 4 777.6 0 4 15 7 777.6 0 7 16 5 777.6 0 5 17 4 777.6 0 4 18 7 777.6 0 7 19 5 777.6 0 5 20 7 777.6 0 7 21 8 777.6 0 8 22 8 777.6 0 8 23 8 777.6 0 8 24 4 777.6 0 4 25 7 777.6 0 7 26 6 777.6 0 6 27 5 777.6 0 5 28 3 777.6 0 3 29 14 777.6 0 14 30 1 777.6 0 1 31 8 777.6 0 8 32 13 777.6 0 13 33 39 777.6 0 39 34 19 777.6 0 19 35 22 777.6 0 22 36 6 777.6 0 6 37 3 777.6 0 3 38 13 777.6 0 13 39 23 777.6 0 23 40 20 777.6 0 20 41 5 777.6 0 5 42 5 777.6 0 5 43 3 777.6 0 3 44 11 777.6 0 11 45 10 777.6 0 10 46 13 777.6 0 13 47 6 777.6 0 6 48 14 777.6 0 14 49 6 777.6 0 6 50 11 777.6 0 11 51 12 777.6 0 12 52 36 777.6 0 36 53 19 777.6 0 19 54 67 777.6 0 67 55 8 777.6 0 8 56 17 777.6 0 17 57 65 777.6 0 65 58 7 777.6 0 7 59 11 777.6 0 11 60 8 777.6 0 8 61 1016 777.6 0 1016 62 73 777.6 0 73 63 62 777.6 0 62 64 18 777.6 0 18 65 35 777.6 0 35 66 19 777.6 0 19 67 40 777.6 0 40 68 10 777.6 0 10 69 11 777.6 0 11 70 11 777.6 0 11 71 30 777.6 0 30 72 22 777.6 0 22 73 6 777.6 0 6 74 8 777.6 0 8 75 20 777.6 0 20 76 47 777.6 0 47 77 27 777.6 0 27 78 18 777.6 0 18 79 14 777.6 0 14 80 12 777.6 0 12 81 18 777.6 0 18 82 75 777.6 0 75 83 36 777.6 0 36 84 53 777.6 0 53 85 92 777.6 0 92 86 597 777.6 0 597 87 224 777.6 0 224 88 233 777.6 0 233 89 89 777.6 0 89 90 106 777.6 0 106 91 27 777.6 0 27 92 31 777.6 0 31 93 48 777.6 0 48 94 64 777.6 0 64 95 34 777.6 0 34 96 34 777.6 0 34 97 40 777.6 0 40 98 90 777.6 0 90 99 82 777.6 0 82 100 174 777.6 0 174 101 344 777.6 0 344 102 592 777.6 0 592 103 9284 777.6 0 9284 104 13289 777.6 0 13289 105 5309 777.6 0 5309 106 276 777.6 0 276 107 124 777.6 0 124 108 193 777.6 0 193 109 18 777.6 0 18 110 18 777.6 0 18 111 36 777.6 0 36 112 33 777.6 0 33 113 23 777.6 0 23 114 16 777.6 0 16 115 21 777.6 0 21 116 12 777.6 0 12 117 4 777.6 0 4 118 26 777.6 0 26 119 159 777.6 0 159 120 78 777.6 0 78 121 70 777.6 0 70 122 32 777.6 0 32 123 27 777.6 0 27 124 39 777.6 0 39 125 142 777.6 0 142 126 170 777.6 0 170 127 40 777.6 0 40 128 52 777.6 0 52 129 33 777.6 0 33 130 24 777.6 0 24 131 20 777.6 0 20 132 69 777.6 0 69 133 197 777.6 0 197 134 246 777.6 0 246 135 74 777.6 0 74 136 61 777.6 0 61 137 70 777.6 0 70 138 107 777.6 0 107 139 523 777.6 0 523 140 178 777.6 0 178 141 98 777.6 0 98 142 33 777.6 0 33 143 103 777.6 0 103 144 120 777.6 0 120 145 187 777.6 0 187 146 38 777.6 0 38 147 36 777.6 0 36 148 32 777.6 0 32 149 94 777.6 0 94 150 316 777.6 0 316 151 87 777.6 0 87 152 65 777.6 0 65 153 111 777.6 0 111 154 65 777.6 0 65 155 62 777.6 0 62 156 59 777.6 0 59 157 64 777.6 0 64 158 66 777.6 0 66 159 185 777.6 0 185 160 142 777.6 0 142 161 64 777.6 0 64 162 29 777.6 0 29 163 43 777.6 0 43 164 98 777.6 0 98 165 129 777.6 0 129 166 60 777.6 0 60 167 40 777.6 0 40 168 53 777.6 0 53 169 40 777.6 0 40 170 39 777.6 0 39 171 119 777.6 0 119 172 311 777.6 0 311 173 144 777.6 0 144 174 34 777.6 0 34 175 11 777.6 0 11 176 19 777.6 0 19 177 18 777.6 0 18 178 93 777.6 0 93 179 63 777.6 0 63 180 139 777.6 0 139 181 60 777.6 0 60 182 57 777.6 0 57 183 65 777.6 0 65 184 163 777.6 0 163 185 178 777.6 0 178 186 67 777.6 0 67 187 24 777.6 0 24 188 23 777.6 0 23 189 179 777.6 0 179 190 124 777.6 0 124 191 113 777.6 0 113 192 24 777.6 0 24 193 13 777.6 0 13 194 18 777.6 0 18 195 13 777.6 0 13 196 20 777.6 0 20 197 25 777.6 0 25 198 24 777.6 0 24 199 22 777.6 0 22 200 58 777.6 0 58 201 73 777.6 0 73 202 54 777.6 0 54 203 25 777.6 0 25 204 41 777.6 0 41 205 220 777.6 0 220 206 380 777.6 0 380 207 363 777.6 0 363 208 191 777.6 0 191 209 68 777.6 0 68 210 81 777.6 0 81 211 140 777.6 0 140 212 126 777.6 0 126 213 133 777.6 0 133 214 122 777.6 0 122 215 141 777.6 0 141 216 167 777.6 0 167 217 78 777.6 0 78 218 118 777.6 0 118 219 211 777.6 0 211 220 212 777.6 0 212 221 104 777.6 0 104 222 49 777.6 0 49 223 129 777.6 0 129 224 276 777.6 0 276 225 318 777.6 0 318 226 170 777.6 0 170 227 195 777.6 0 195 228 103 777.6 0 103 229 68 777.6 0 68 230 46 777.6 0 46 231 72 777.6 0 72 232 25 777.6 0 25 233 42 777.6 0 42 234 55 777.6 0 55 235 136 777.6 0 136 236 45 777.6 0 45 237 25 777.6 0 25 238 15 777.6 0 15 239 16 777.6 0 16 240 27 777.6 0 27 241 32 777.6 0 32 242 33 777.6 0 33 243 20 777.6 0 20 244 50 777.6 0 50 245 60 777.6 0 60 246 75 777.6 0 75 247 47 777.6 0 47 248 24 777.6 0 24 249 20 777.6 0 20 250 23 777.6 0 23 251 42 777.6 0 42 252 31 777.6 0 31 253 58 777.6 0 58 254 285 777.6 0 285 255 689 777.6 0 689 256 189 777.6 0 189 257 101 777.6 0 101 258 130 777.6 0 130 259 497 777.6 0 497 260 448 777.6 0 448 261 562 777.6 0 562 262 379 777.6 0 379 263 411 777.6 0 411 264 110 777.6 0 110 265 214 777.6 0 214 266 163 777.6 0 163 267 70 777.6 0 70 268 26 777.6 0 26 269 9 777.6 0 9 270 15 777.6 0 15 271 9 777.6 0 9 272 11 777.6 0 11 273 32 777.6 0 32 274 84 777.6 0 84 275 38 777.6 0 38 276 43 777.6 0 43 277 42 777.6 0 42 278 104 777.6 0 104 279 99 777.6 0 99 280 109 777.6 0 109 281 100 777.6 0 100 282 47 777.6 0 47 283 58 777.6 0 58 284 65 777.6 0 65 285 61 777.6 0 61 286 95 777.6 0 95 287 32 777.6 0 32 288 20 777.6 0 20 289 5 777.6 0 5 290 10 777.6 0 10 291 11 777.6 0 11 292 9 777.6 0 9 293 10 777.6 0 10 294 18 777.6 0 18 295 12 777.6 0 12 296 8 777.6 0 8 297 7 777.6 0 7 298 13 777.6 0 13 299 16 777.6 0 16 300 18 777.6 0 18 301 98 777.6 0 98 Finished in 4.39 s (48 us/read; 1.26 M reads/minute). === Summary === Total reads processed: 91,998 Reads with adapters: 39,818 (43.3%) Reads that were too short: 12 (0.0%) Reads written (passing filters): 39,806 (43.3%) Total basepairs processed: 22,752,031 bp Total written (filtered): 10,985,261 bp (48.3%) === Adapter 1 === Sequence: CCTAYGGGRBGCASCAG; Type: regular 5'; Length: 17; Trimmed: 39818 times. No. of allowed errors: 0-4 bp: 0; 5-9 bp: 1; 10-14 bp: 2; 15-17 bp: 3 Overview of removed sequences length count expect max.err error counts 15 7 0.0 3 0 0 6 1 16 191 0.0 3 0 183 7 1 17 39334 0.0 3 38809 504 18 3 18 84 0.0 3 4 73 6 1 19 117 0.0 3 0 0 106 11 20 59 0.0 3 0 0 0 59 27 1 0.0 3 0 0 0 1 64 1 0.0 3 0 0 0 1 83 4 0.0 3 0 0 0 4 87 1 0.0 3 0 0 0 1 102 1 0.0 3 0 0 0 1 115 1 0.0 3 0 0 0 1 141 1 0.0 3 0 0 1 158 1 0.0 3 0 0 0 1 162 1 0.0 3 0 0 0 1 164 2 0.0 3 0 0 0 2 187 2 0.0 3 0 0 0 2 192 1 0.0 3 0 0 0 1 202 1 0.0 3 0 0 0 1 217 8 0.0 3 0 0 0 8 This is cutadapt 1.11 with Python 2.7.12 Command line parameters: -a taatctatgggnncatcagg - Trimming 1 adapter with at most 10.0% errors in single-end mode ... Finished in 1.82 s (46 us/read; 1.31 M reads/minute). === Summary === Total reads processed: 39,806 Reads with adapters: 2,474 (6.2%) Reads written (passing filters): 39,806 (100.0%) Total basepairs processed: 10,985,261 bp Total written (filtered): 10,977,819 bp (99.9%) === Adapter 1 === Sequence: TAATCTATGGGNNCATCAGG; Type: regular 3'; Length: 20; Trimmed: 2474 times. No. of allowed errors: 0-9 bp: 0; 10-19 bp: 1; 20 bp: 2 Bases preceding removed adapters: A: 45.6% C: 5.0% G: 48.7% T: 0.7% none/other: 0.0% Overview of removed sequences length count expect max.err error counts 3 2457 622.0 0 2457 4 16 155.5 0 16 7 1 2.4 0 1