Experiment: D-Galactose (C)
Only strains with sufficient reads to estimate fitness are shown,
but the strain fitness values are still rather noisy and may be biased towards zero.
Strains near the edge of a gene are not shown as being associated with that
gene (they are in grey).
Strains in the central 10-90% of a gene are color coded by the insertion's strand.
Usually, "+" means that the selectable marker is encoded on the forward strand,
i.e., transcribed rightward.
500 nt Echvi_1668 and Echvi_1669 are separated by 42 nucleotides Echvi_1669 and Echvi_1670 are separated by 490 nucleotides
Echvi_1668: Echvi_1668 - Beta-galactosidase/beta-glucuronidase, at 1,941,824 to 1,945,357
_1668
Echvi_1669: Echvi_1669 - Beta-galactosidase/beta-glucuronidase, at 1,945,400 to 1,947,886
_1669
Echvi_1670: Echvi_1670 - hypothetical protein, at 1,948,377 to 1,949,018
_1670
Position (kb)
1945
1946
1947
1948 Strain fitness (log2 ratio)
-3
-2
-1
0
1
2
3 at 1944.585 kb on + strand, within Echvi_1668 at 1944.662 kb on + strand, within Echvi_1668 at 1944.663 kb on - strand, within Echvi_1668 at 1944.736 kb on + strand, within Echvi_1668 at 1944.736 kb on + strand, within Echvi_1668 at 1944.737 kb on - strand, within Echvi_1668 at 1944.743 kb on + strand, within Echvi_1668 at 1944.744 kb on - strand, within Echvi_1668 at 1944.926 kb on + strand, within Echvi_1668 at 1944.926 kb on + strand, within Echvi_1668 at 1944.926 kb on + strand, within Echvi_1668 at 1944.926 kb on + strand, within Echvi_1668 at 1944.926 kb on + strand, within Echvi_1668 at 1944.927 kb on - strand, within Echvi_1668 at 1944.927 kb on - strand, within Echvi_1668 at 1944.951 kb on - strand, within Echvi_1668 at 1945.055 kb on + strand at 1945.055 kb on + strand at 1945.056 kb on - strand at 1945.058 kb on - strand at 1945.078 kb on + strand at 1945.079 kb on - strand at 1945.132 kb on + strand at 1945.136 kb on + strand at 1945.292 kb on + strand at 1945.293 kb on - strand at 1945.293 kb on - strand at 1945.293 kb on - strand at 1945.295 kb on - strand at 1945.295 kb on - strand at 1945.300 kb on + strand at 1945.301 kb on - strand at 1945.369 kb on + strand at 1945.384 kb on + strand at 1945.411 kb on + strand at 1945.412 kb on - strand at 1945.416 kb on - strand at 1945.423 kb on + strand at 1945.447 kb on - strand at 1945.450 kb on - strand at 1945.453 kb on + strand at 1945.453 kb on + strand at 1945.453 kb on + strand at 1945.453 kb on + strand at 1945.454 kb on - strand at 1945.454 kb on - strand at 1945.454 kb on - strand at 1945.555 kb on + strand at 1945.559 kb on + strand at 1945.745 kb on - strand, within Echvi_1669 at 1945.799 kb on + strand, within Echvi_1669 at 1945.871 kb on + strand, within Echvi_1669 at 1945.908 kb on + strand, within Echvi_1669 at 1945.908 kb on + strand, within Echvi_1669 at 1945.908 kb on + strand, within Echvi_1669 at 1945.909 kb on - strand, within Echvi_1669 at 1945.964 kb on - strand, within Echvi_1669 at 1945.964 kb on - strand, within Echvi_1669 at 1946.036 kb on + strand, within Echvi_1669 at 1946.037 kb on - strand, within Echvi_1669 at 1946.076 kb on + strand, within Echvi_1669 at 1946.077 kb on - strand, within Echvi_1669 at 1946.083 kb on - strand, within Echvi_1669 at 1946.083 kb on - strand, within Echvi_1669 at 1946.088 kb on + strand, within Echvi_1669 at 1946.088 kb on + strand, within Echvi_1669 at 1946.088 kb on + strand, within Echvi_1669 at 1946.088 kb on + strand, within Echvi_1669 at 1946.089 kb on - strand, within Echvi_1669 at 1946.089 kb on - strand, within Echvi_1669 at 1946.089 kb on - strand, within Echvi_1669 at 1946.231 kb on - strand, within Echvi_1669 at 1946.236 kb on - strand, within Echvi_1669 at 1946.250 kb on + strand, within Echvi_1669 at 1946.250 kb on + strand, within Echvi_1669 at 1946.250 kb on + strand, within Echvi_1669 at 1946.251 kb on - strand, within Echvi_1669 at 1946.251 kb on - strand, within Echvi_1669 at 1946.270 kb on + strand, within Echvi_1669 at 1946.271 kb on - strand, within Echvi_1669 at 1946.271 kb on - strand, within Echvi_1669 at 1946.271 kb on - strand, within Echvi_1669 at 1946.271 kb on - strand, within Echvi_1669 at 1946.295 kb on + strand, within Echvi_1669 at 1946.295 kb on + strand, within Echvi_1669 at 1946.295 kb on + strand, within Echvi_1669 at 1946.295 kb on + strand, within Echvi_1669 at 1946.296 kb on - strand, within Echvi_1669 at 1946.296 kb on - strand, within Echvi_1669 at 1946.296 kb on - strand, within Echvi_1669 at 1946.296 kb on - strand, within Echvi_1669 at 1946.296 kb on - strand, within Echvi_1669 at 1946.296 kb on - strand, within Echvi_1669 at 1946.296 kb on - strand, within Echvi_1669 at 1946.296 kb on - strand, within Echvi_1669 at 1946.296 kb on - strand, within Echvi_1669 at 1946.297 kb on + strand, within Echvi_1669 at 1946.297 kb on + strand, within Echvi_1669 at 1946.324 kb on + strand, within Echvi_1669 at 1946.324 kb on + strand, within Echvi_1669 at 1946.324 kb on + strand, within Echvi_1669 at 1946.325 kb on - strand, within Echvi_1669 at 1946.325 kb on - strand, within Echvi_1669 at 1946.325 kb on - strand, within Echvi_1669 at 1946.325 kb on - strand, within Echvi_1669 at 1946.325 kb on - strand, within Echvi_1669 at 1946.325 kb on - strand, within Echvi_1669 at 1946.325 kb on - strand, within Echvi_1669 at 1946.325 kb on - strand, within Echvi_1669 at 1946.417 kb on - strand, within Echvi_1669 at 1946.553 kb on + strand, within Echvi_1669 at 1946.765 kb on - strand, within Echvi_1669 at 1946.778 kb on + strand, within Echvi_1669 at 1946.836 kb on + strand, within Echvi_1669 at 1946.854 kb on + strand, within Echvi_1669 at 1946.912 kb on - strand, within Echvi_1669 at 1946.990 kb on + strand, within Echvi_1669 at 1947.080 kb on + strand, within Echvi_1669 at 1947.081 kb on - strand, within Echvi_1669 at 1947.081 kb on - strand, within Echvi_1669 at 1947.231 kb on - strand, within Echvi_1669 at 1947.239 kb on - strand, within Echvi_1669 at 1947.275 kb on + strand, within Echvi_1669 at 1947.275 kb on + strand, within Echvi_1669 at 1947.276 kb on - strand, within Echvi_1669 at 1947.276 kb on - strand, within Echvi_1669 at 1947.276 kb on - strand, within Echvi_1669 at 1947.281 kb on + strand, within Echvi_1669 at 1947.281 kb on + strand, within Echvi_1669 at 1947.282 kb on - strand, within Echvi_1669 at 1947.282 kb on - strand, within Echvi_1669 at 1947.282 kb on - strand, within Echvi_1669 at 1947.282 kb on - strand, within Echvi_1669 at 1947.304 kb on + strand, within Echvi_1669 at 1947.318 kb on + strand, within Echvi_1669 at 1947.319 kb on - strand, within Echvi_1669 at 1947.361 kb on - strand, within Echvi_1669 at 1947.361 kb on - strand, within Echvi_1669 at 1947.368 kb on + strand, within Echvi_1669 at 1947.369 kb on - strand, within Echvi_1669 at 1947.369 kb on - strand, within Echvi_1669 at 1947.371 kb on + strand, within Echvi_1669 at 1947.371 kb on + strand, within Echvi_1669 at 1947.371 kb on + strand, within Echvi_1669 at 1947.372 kb on - strand, within Echvi_1669 at 1947.372 kb on - strand, within Echvi_1669 at 1947.372 kb on - strand, within Echvi_1669 at 1947.373 kb on + strand, within Echvi_1669 at 1947.374 kb on - strand, within Echvi_1669 at 1947.464 kb on - strand, within Echvi_1669 at 1947.539 kb on - strand, within Echvi_1669 at 1947.667 kb on + strand at 1947.667 kb on + strand at 1947.667 kb on + strand at 1947.670 kb on + strand at 1947.670 kb on + strand at 1947.670 kb on + strand at 1947.671 kb on - strand at 1947.772 kb on + strand at 1947.897 kb on + strand at 1947.910 kb on + strand at 1947.986 kb on + strand at 1948.038 kb on + strand at 1948.038 kb on + strand at 1948.039 kb on - strand at 1948.092 kb on + strand at 1948.099 kb on + strand at 1948.099 kb on + strand at 1948.099 kb on + strand at 1948.100 kb on - strand at 1948.106 kb on + strand at 1948.137 kb on - strand at 1948.137 kb on - strand at 1948.137 kb on - strand at 1948.195 kb on + strand at 1948.290 kb on + strand at 1948.324 kb on - strand at 1948.324 kb on - strand at 1948.324 kb on - strand at 1948.362 kb on + strand at 1948.363 kb on - strand at 1948.378 kb on + strand at 1948.382 kb on + strand at 1948.439 kb on + strand at 1948.439 kb on + strand at 1948.440 kb on - strand at 1948.440 kb on - strand at 1948.506 kb on + strand, within Echvi_1670 at 1948.506 kb on + strand, within Echvi_1670 at 1948.506 kb on + strand, within Echvi_1670 at 1948.519 kb on + strand, within Echvi_1670 at 1948.519 kb on + strand, within Echvi_1670 at 1948.519 kb on + strand, within Echvi_1670 at 1948.519 kb on + strand, within Echvi_1670 at 1948.519 kb on + strand, within Echvi_1670 at 1948.519 kb on + strand, within Echvi_1670 at 1948.520 kb on - strand, within Echvi_1670 at 1948.520 kb on - strand, within Echvi_1670 at 1948.520 kb on - strand, within Echvi_1670 at 1948.520 kb on - strand, within Echvi_1670 at 1948.524 kb on + strand, within Echvi_1670 at 1948.525 kb on - strand, within Echvi_1670 at 1948.551 kb on + strand, within Echvi_1670 at 1948.551 kb on + strand, within Echvi_1670 at 1948.556 kb on + strand, within Echvi_1670 at 1948.583 kb on + strand, within Echvi_1670 at 1948.583 kb on + strand, within Echvi_1670 at 1948.595 kb on + strand, within Echvi_1670 at 1948.655 kb on + strand, within Echvi_1670 at 1948.691 kb on + strand, within Echvi_1670 at 1948.691 kb on + strand, within Echvi_1670 at 1948.702 kb on - strand, within Echvi_1670 at 1948.722 kb on + strand, within Echvi_1670 at 1948.723 kb on - strand, within Echvi_1670 at 1948.723 kb on - strand, within Echvi_1670 at 1948.777 kb on + strand, within Echvi_1670 at 1948.777 kb on + strand, within Echvi_1670 at 1948.777 kb on + strand, within Echvi_1670 at 1948.777 kb on + strand, within Echvi_1670 at 1948.777 kb on + strand, within Echvi_1670 at 1948.777 kb on + strand, within Echvi_1670 at 1948.778 kb on - strand, within Echvi_1670 at 1948.778 kb on - strand, within Echvi_1670 at 1948.778 kb on - strand, within Echvi_1670 at 1948.778 kb on - strand, within Echvi_1670 at 1948.795 kb on - strand, within Echvi_1670 at 1948.798 kb on - strand, within Echvi_1670 at 1948.830 kb on - strand, within Echvi_1670 at 1948.839 kb on + strand, within Echvi_1670 at 1948.839 kb on + strand, within Echvi_1670 at 1948.840 kb on - strand, within Echvi_1670 at 1948.840 kb on - strand, within Echvi_1670 at 1948.877 kb on + strand, within Echvi_1670 at 1948.878 kb on - strand, within Echvi_1670 at 1948.878 kb on - strand, within Echvi_1670 at 1948.879 kb on + strand, within Echvi_1670 at 1948.879 kb on + strand, within Echvi_1670 at 1948.880 kb on - strand, within Echvi_1670 at 1948.880 kb on - strand, within Echvi_1670 at 1948.880 kb on - strand, within Echvi_1670
Per-strain Table
Position Strand Gene LocusTag Fraction D-Galactose (C) remove 1,944,585 + Echvi_1668 0.78 -0.9 1,944,662 + Echvi_1668 0.80 -0.2 1,944,663 - Echvi_1668 0.80 -0.1 1,944,736 + Echvi_1668 0.82 -0.2 1,944,736 + Echvi_1668 0.82 -0.1 1,944,737 - Echvi_1668 0.82 -0.6 1,944,743 + Echvi_1668 0.83 -0.1 1,944,744 - Echvi_1668 0.83 +0.3 1,944,926 + Echvi_1668 0.88 -0.1 1,944,926 + Echvi_1668 0.88 -0.6 1,944,926 + Echvi_1668 0.88 -1.4 1,944,926 + Echvi_1668 0.88 -1.5 1,944,926 + Echvi_1668 0.88 -0.4 1,944,927 - Echvi_1668 0.88 +0.4 1,944,927 - Echvi_1668 0.88 -0.8 1,944,951 - Echvi_1668 0.88 -2.8 1,945,055 + +0.1 1,945,055 + -2.1 1,945,056 - -1.9 1,945,058 - +0.1 1,945,078 + +0.6 1,945,079 - +1.4 1,945,132 + +1.5 1,945,136 + -0.5 1,945,292 + +0.5 1,945,293 - -0.3 1,945,293 - +1.5 1,945,293 - -0.2 1,945,295 - -0.4 1,945,295 - +0.4 1,945,300 + -1.3 1,945,301 - -0.4 1,945,369 + +1.4 1,945,384 + +0.9 1,945,411 + +0.3 1,945,412 - +0.5 1,945,416 - -0.6 1,945,423 + +0.7 1,945,447 - +0.5 1,945,450 - -2.0 1,945,453 + +0.1 1,945,453 + -0.4 1,945,453 + -2.6 1,945,453 + -1.5 1,945,454 - +0.5 1,945,454 - -2.8 1,945,454 - -0.8 1,945,555 + +0.7 1,945,559 + -2.2 1,945,745 - Echvi_1669 0.14 +1.8 1,945,799 + Echvi_1669 0.16 +0.9 1,945,871 + Echvi_1669 0.19 +0.6 1,945,908 + Echvi_1669 0.20 +1.9 1,945,908 + Echvi_1669 0.20 +1.0 1,945,908 + Echvi_1669 0.20 -0.4 1,945,909 - Echvi_1669 0.20 +1.9 1,945,964 - Echvi_1669 0.23 +0.2 1,945,964 - Echvi_1669 0.23 +0.6 1,946,036 + Echvi_1669 0.26 +0.9 1,946,037 - Echvi_1669 0.26 -0.4 1,946,076 + Echvi_1669 0.27 +0.4 1,946,077 - Echvi_1669 0.27 -0.4 1,946,083 - Echvi_1669 0.27 -1.0 1,946,083 - Echvi_1669 0.27 -1.1 1,946,088 + Echvi_1669 0.28 +1.2 1,946,088 + Echvi_1669 0.28 +0.7 1,946,088 + Echvi_1669 0.28 -1.5 1,946,088 + Echvi_1669 0.28 +0.3 1,946,089 - Echvi_1669 0.28 +0.5 1,946,089 - Echvi_1669 0.28 -1.1 1,946,089 - Echvi_1669 0.28 -0.1 1,946,231 - Echvi_1669 0.33 -0.0 1,946,236 - Echvi_1669 0.34 -0.4 1,946,250 + Echvi_1669 0.34 +0.9 1,946,250 + Echvi_1669 0.34 +0.9 1,946,250 + Echvi_1669 0.34 +0.4 1,946,251 - Echvi_1669 0.34 -1.5 1,946,251 - Echvi_1669 0.34 +0.3 1,946,270 + Echvi_1669 0.35 -1.0 1,946,271 - Echvi_1669 0.35 -0.4 1,946,271 - Echvi_1669 0.35 +0.2 1,946,271 - Echvi_1669 0.35 -1.9 1,946,271 - Echvi_1669 0.35 -0.0 1,946,295 + Echvi_1669 0.36 -1.9 1,946,295 + Echvi_1669 0.36 -0.2 1,946,295 + Echvi_1669 0.36 +0.1 1,946,295 + Echvi_1669 0.36 -1.5 1,946,296 - Echvi_1669 0.36 +0.4 1,946,296 - Echvi_1669 0.36 -2.1 1,946,296 - Echvi_1669 0.36 +0.7 1,946,296 - Echvi_1669 0.36 +0.2 1,946,296 - Echvi_1669 0.36 +0.4 1,946,296 - Echvi_1669 0.36 +1.1 1,946,296 - Echvi_1669 0.36 +1.3 1,946,296 - Echvi_1669 0.36 -0.3 1,946,296 - Echvi_1669 0.36 -1.1 1,946,297 + Echvi_1669 0.36 +1.2 1,946,297 + Echvi_1669 0.36 +0.4 1,946,324 + Echvi_1669 0.37 +0.4 1,946,324 + Echvi_1669 0.37 -1.8 1,946,324 + Echvi_1669 0.37 -1.0 1,946,325 - Echvi_1669 0.37 +0.4 1,946,325 - Echvi_1669 0.37 -0.1 1,946,325 - Echvi_1669 0.37 +0.0 1,946,325 - Echvi_1669 0.37 +0.1 1,946,325 - Echvi_1669 0.37 -0.7 1,946,325 - Echvi_1669 0.37 -0.3 1,946,325 - Echvi_1669 0.37 +0.1 1,946,325 - Echvi_1669 0.37 -1.0 1,946,417 - Echvi_1669 0.41 -2.6 1,946,553 + Echvi_1669 0.46 -2.1 1,946,765 - Echvi_1669 0.55 -0.2 1,946,778 + Echvi_1669 0.55 -0.1 1,946,836 + Echvi_1669 0.58 +1.9 1,946,854 + Echvi_1669 0.58 +0.3 1,946,912 - Echvi_1669 0.61 -2.4 1,946,990 + Echvi_1669 0.64 +0.9 1,947,080 + Echvi_1669 0.68 -0.9 1,947,081 - Echvi_1669 0.68 +0.9 1,947,081 - Echvi_1669 0.68 +1.4 1,947,231 - Echvi_1669 0.74 +1.6 1,947,239 - Echvi_1669 0.74 -0.5 1,947,275 + Echvi_1669 0.75 -0.1 1,947,275 + Echvi_1669 0.75 +0.3 1,947,276 - Echvi_1669 0.75 -1.9 1,947,276 - Echvi_1669 0.75 -0.4 1,947,276 - Echvi_1669 0.75 +1.0 1,947,281 + Echvi_1669 0.76 +1.6 1,947,281 + Echvi_1669 0.76 +0.0 1,947,282 - Echvi_1669 0.76 -1.4 1,947,282 - Echvi_1669 0.76 +2.5 1,947,282 - Echvi_1669 0.76 +0.7 1,947,282 - Echvi_1669 0.76 -1.5 1,947,304 + Echvi_1669 0.77 +0.3 1,947,318 + Echvi_1669 0.77 -0.1 1,947,319 - Echvi_1669 0.77 +0.4 1,947,361 - Echvi_1669 0.79 -0.2 1,947,361 - Echvi_1669 0.79 -0.2 1,947,368 + Echvi_1669 0.79 -2.1 1,947,369 - Echvi_1669 0.79 -1.9 1,947,369 - Echvi_1669 0.79 -0.6 1,947,371 + Echvi_1669 0.79 -3.4 1,947,371 + Echvi_1669 0.79 +0.7 1,947,371 + Echvi_1669 0.79 +0.3 1,947,372 - Echvi_1669 0.79 +0.8 1,947,372 - Echvi_1669 0.79 +1.0 1,947,372 - Echvi_1669 0.79 +0.4 1,947,373 + Echvi_1669 0.79 -0.4 1,947,374 - Echvi_1669 0.79 -0.9 1,947,464 - Echvi_1669 0.83 -0.4 1,947,539 - Echvi_1669 0.86 -1.4 1,947,667 + +0.6 1,947,667 + +2.8 1,947,667 + +0.7 1,947,670 + +1.2 1,947,670 + +0.2 1,947,670 + -0.9 1,947,671 - +0.2 1,947,772 + -0.5 1,947,897 + -0.2 1,947,910 + +0.1 1,947,986 + +0.2 1,948,038 + +1.3 1,948,038 + +1.6 1,948,039 - +0.5 1,948,092 + +1.4 1,948,099 + +0.3 1,948,099 + +0.5 1,948,099 + +0.6 1,948,100 - +0.4 1,948,106 + +0.9 1,948,137 - -0.1 1,948,137 - +0.8 1,948,137 - -0.1 1,948,195 + -1.7 1,948,290 + -2.0 1,948,324 - +0.5 1,948,324 - +0.8 1,948,324 - +0.1 1,948,362 + -1.1 1,948,363 - +0.8 1,948,378 + -2.9 1,948,382 + +2.0 1,948,439 + -0.4 1,948,439 + +0.4 1,948,440 - +0.9 1,948,440 - +0.5 1,948,506 + Echvi_1670 0.20 +1.2 1,948,506 + Echvi_1670 0.20 +0.7 1,948,506 + Echvi_1670 0.20 -0.1 1,948,519 + Echvi_1670 0.22 +0.4 1,948,519 + Echvi_1670 0.22 -1.8 1,948,519 + Echvi_1670 0.22 +0.2 1,948,519 + Echvi_1670 0.22 +0.1 1,948,519 + Echvi_1670 0.22 -1.8 1,948,519 + Echvi_1670 0.22 -0.2 1,948,520 - Echvi_1670 0.22 -0.9 1,948,520 - Echvi_1670 0.22 +0.2 1,948,520 - Echvi_1670 0.22 +0.9 1,948,520 - Echvi_1670 0.22 +0.9 1,948,524 + Echvi_1670 0.23 +0.7 1,948,525 - Echvi_1670 0.23 +0.9 1,948,551 + Echvi_1670 0.27 +0.2 1,948,551 + Echvi_1670 0.27 +0.4 1,948,556 + Echvi_1670 0.28 -0.5 1,948,583 + Echvi_1670 0.32 -2.0 1,948,583 + Echvi_1670 0.32 -0.9 1,948,595 + Echvi_1670 0.34 -0.6 1,948,655 + Echvi_1670 0.43 +0.5 1,948,691 + Echvi_1670 0.49 -1.4 1,948,691 + Echvi_1670 0.49 +2.2 1,948,702 - Echvi_1670 0.51 +0.4 1,948,722 + Echvi_1670 0.54 -1.9 1,948,723 - Echvi_1670 0.54 +0.2 1,948,723 - Echvi_1670 0.54 +0.3 1,948,777 + Echvi_1670 0.62 +0.9 1,948,777 + Echvi_1670 0.62 -1.2 1,948,777 + Echvi_1670 0.62 +0.1 1,948,777 + Echvi_1670 0.62 +1.1 1,948,777 + Echvi_1670 0.62 -0.6 1,948,777 + Echvi_1670 0.62 +0.1 1,948,778 - Echvi_1670 0.62 +0.4 1,948,778 - Echvi_1670 0.62 -0.6 1,948,778 - Echvi_1670 0.62 -0.1 1,948,778 - Echvi_1670 0.62 +0.8 1,948,795 - Echvi_1670 0.65 -0.6 1,948,798 - Echvi_1670 0.66 -1.6 1,948,830 - Echvi_1670 0.71 +0.2 1,948,839 + Echvi_1670 0.72 -0.9 1,948,839 + Echvi_1670 0.72 -3.2 1,948,840 - Echvi_1670 0.72 -0.6 1,948,840 - Echvi_1670 0.72 +2.9 1,948,877 + Echvi_1670 0.78 -0.1 1,948,878 - Echvi_1670 0.78 -0.0 1,948,878 - Echvi_1670 0.78 +0.5 1,948,879 + Echvi_1670 0.78 -0.7 1,948,879 + Echvi_1670 0.78 -0.4 1,948,880 - Echvi_1670 0.78 +0.4 1,948,880 - Echvi_1670 0.78 +1.3 1,948,880 - Echvi_1670 0.78 -1.5
Or see this region's nucleotide sequence