Table 2.
Length and position of genes in the mitochondrial genomes of Xenopus
| |
|
Xenopus laevis |
Silurana (X.) tropicalis |
X. borealis |
X. victorianus |
||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feature | Description |
Position |
Length |
Start/Stop | A (%) | C (%) | G (%) | T (%) |
Position |
Length |
Start/Stop | A (%) | C (%) | G (%) | T (%) |
Position |
Length |
Start/Stop | A (%) | C (%) | G (%) | T (%) |
Position |
Length |
Start/Stop | A (%) | C (%) | G (%) | T (%) | ||||
| (nt) | (nt) | (nt) | (nt) | (nt) | (nt) | (nt) | (nt) | ||||||||||||||||||||||||||
| tRNA |
Phe |
1 |
69 |
69 |
|
33.3 |
23.2 |
24.6 |
18.9 |
1 |
68 |
68 |
|
38.2 |
22.1 |
22.1 |
17.6 |
1 |
68 |
68 |
|
36.8 |
22.1 |
23.5 |
17.6 |
1 |
68 |
68 |
|
36.8 |
22.1 |
23.5 |
17.6 |
| rRNA |
rrnS |
70 |
888 |
819 |
|
32.5 |
25.5 |
19.9 |
22.1 |
69 |
1011 |
943 |
|
32.7 |
27.8 |
20.0 |
19.5 |
69 |
1015 |
947 |
|
32.2 |
25.0 |
19.6 |
23.2 |
69 |
1016 |
948 |
|
32.3 |
25.9 |
19.6 |
22.2 |
| tRNA |
Val |
889 |
957 |
69 |
|
34.8 |
24.6 |
13.0 |
27.6 |
1012 |
1081 |
70 |
|
32.9 |
28.6 |
14.3 |
24.2 |
1016 |
1085 |
70 |
|
32.9 |
24.3 |
14.3 |
28.5 |
1017 |
1085 |
69 |
|
33.3 |
23.2 |
14.5 |
29.0 |
| rRNA |
rrnL |
958 |
2588 |
1631 |
|
36.4 |
21.0 |
17.7 |
24.9 |
1082 |
2716 |
1635 |
|
34.9 |
24.1 |
18.5 |
22.5 |
1086 |
2720 |
1635 |
|
36.5 |
19.6 |
18.2 |
25.7 |
1086 |
2720 |
1635 |
|
37.1 |
21.4 |
17.7 |
23.8 |
| tRNA |
Lee (UUR) |
2589 |
2663 |
75 |
|
24.0 |
26.7 |
24.0 |
25.3 |
2717 |
2791 |
75 |
|
25.3 |
25.3 |
22.7 |
26.7 |
2721 |
2795 |
75 |
|
25.3 |
26.7 |
22.7 |
25.3 |
2722 |
2796 |
75 |
|
21.3 |
29.3 |
25.3 |
24.1 |
| Gene |
nad1 |
2664 |
3635 |
972 |
ATG/TAG |
31.6 |
24.9 |
12.3 |
31.2 |
2792 |
3759 |
968 |
ATG/TAG |
28.0 |
30.0 |
13.7 |
28.3 |
2796 |
3764 |
969 |
ATG/TAG |
29.1 |
21.3 |
15.3 |
34.3 |
2801 |
3769 |
969 |
ATG/TAG |
30.5 |
26.5 |
12.4 |
30.6 |
| tRNA |
Ile |
3635 |
3705 |
71 |
|
31.0 |
21.1 |
22.5 |
25.4 |
3760 |
3830 |
71 |
|
28.2 |
23.9 |
25.4 |
22.5 |
3764 |
3834 |
71 |
|
31.0 |
21.1 |
22.5 |
25.4 |
3769 |
3839 |
71 |
|
31.0 |
22.5 |
22.5 |
24.0 |
| tRNA |
Gln [C] |
3705 |
3775 |
71 |
|
21.1 |
14.1 |
31.0 |
33.8 |
3830 |
3900 |
71 |
|
21.1 |
14.1 |
31.0 |
33.8 |
3834 |
3904 |
71 |
|
21.1 |
12.7 |
31.0 |
35.2 |
3840 |
3909 |
70 |
|
20.0 |
14.3 |
13.4 |
52.3 |
| tRNA |
Met |
3775 |
3843 |
69 |
|
31.9 |
26.1 |
14.5 |
27.5 |
3900 |
3968 |
69 |
|
31.9 |
24.6 |
14.5 |
29.0 |
3904 |
3972 |
69 |
|
33.3 |
23.2 |
14.5 |
29.0 |
3909 |
3977 |
69 |
|
31.9 |
26.1 |
14.5 |
27.5 |
| Gene |
nad2 |
3844 |
4881 |
1038 |
ATG/TAG |
31.8 |
26.9 |
10.2 |
31.1 |
3969 |
5004 |
1036 |
ATG/TAG |
29.5 |
33.3 |
9.7 |
27.5 |
3973 |
5010 |
1038 |
ATG/TAG |
31.5 |
24.2 |
11.4 |
32.9 |
3978 |
5015 |
1038 |
ATG/TAG |
32.2 |
27.5 |
9.3 |
31.0 |
| tRNA |
Trp |
4880 |
4948 |
69 |
|
36.2 |
28.3 |
18.8 |
16.7 |
5005 |
5073 |
69 |
|
33.3 |
23.2 |
23.2 |
20.3 |
5009 |
5077 |
69 |
|
36.2 |
20.3 |
17.4 |
26.1 |
5014 |
5082 |
69 |
|
36.2 |
21.7 |
17.4 |
24.7 |
| tRNA |
Ala [C] |
4951 |
5019 |
69 |
|
30.4 |
13.0 |
20.3 |
36.3 |
5077 |
5145 |
69 |
|
29.0 |
13.0 |
21.7 |
36.3 |
5084 |
5154 |
71 |
|
31.0 |
11.3 |
19.7 |
38.0 |
5084 |
5154 |
71 |
|
28.2 |
12.7 |
23.9 |
35.2 |
| tRNA |
Asn [C] |
5021 |
5091 |
71 |
|
23.9 |
15.5 |
28.2 |
32.4 |
5147 |
5219 |
73 |
|
24.7 |
17.8 |
26.0 |
31.5 |
5154 |
5228 |
75 |
|
25.3 |
20.0 |
26.7 |
28.0 |
5154 |
5228 |
75 |
|
24.0 |
16.0 |
30.7 |
29.3 |
| tRNA |
Cys [C] |
5190 |
5259 |
70 |
|
25.8 |
22.7 |
28.8 |
22.7 |
5258 |
5323 |
66 |
|
25.8 |
22.7 |
31.8 |
19.7 |
5255 |
5320 |
66 |
|
24.2 |
25.8 |
28.8 |
21.2 |
5260 |
5325 |
66 |
|
24.2 |
22.7 |
30.3 |
22.8 |
| tRNA |
Tyr [C] |
6817 |
6887 |
71 |
|
21.4 |
20.0 |
31.4 |
27.2 |
5324 |
5393 |
70 |
|
20.0 |
22.9 |
31.4 |
25.7 |
5321 |
5392 |
72 |
|
23.6 |
26.4 |
27.8 |
22.2 |
5326 |
5397 |
72 |
|
22.2 |
22.2 |
29.2 |
26.4 |
| Gene |
cox1 |
5262 |
6816 |
1555 |
ATG/AAT |
28.6 |
22.4 |
16.5 |
32.5 |
5395 |
6951 |
1557 |
GTG/TAA |
27.3 |
25.1 |
17.5 |
30.1 |
5392 |
6948 |
1557 |
GTG/TAA |
28.1 |
21.1 |
17.3 |
33.5 |
5397 |
6953 |
1557 |
GTG/TAA |
28.5 |
23.3 |
16.1 |
32.1 |
| tRNA |
Ser (UCN) [C] |
6817 |
6887 |
71 |
|
26.8 |
16.9 |
28.2 |
28.1 |
6954 |
7024 |
71 |
|
25.4 |
15.5 |
28.2 |
30.9 |
6950 |
7020 |
71 |
|
28.2 |
18.3 |
25.4 |
28.1 |
6956 |
7026 |
71 |
|
28.2 |
25.4 |
16.9 |
29.5 |
| tRNA |
Asp |
6903 |
6971 |
69 |
|
31.9 |
21.7 |
23.2 |
23.2 |
7040 |
7108 |
69 |
|
37.3 |
26.1 |
18.8 |
17.8 |
7031 |
7099 |
69 |
|
37.7 |
15.9 |
14.5 |
31.9 |
7042 |
7109 |
68 |
|
38.9 |
22.1 |
19.1 |
19.9 |
| Gene |
cox2 |
6974 |
7661 |
688 |
ATG/T |
32.1 |
24.4 |
14.7 |
28.8 |
7111 |
7798 |
688 |
ATG/T |
31.4 |
28.2 |
15.1 |
25.3 |
7102 |
7789 |
688 |
ATG/T |
32.3 |
21.9 |
14.8 |
31.0 |
7112 |
7799 |
688 |
ATG/T |
32.3 |
25.0 |
14.2 |
28.5 |
| tRNA |
Lys |
7662 |
7736 |
75 |
|
32.0 |
24.0 |
20.0 |
24.0 |
7799 |
7872 |
74 |
|
31.1 |
28.4 |
21.6 |
18.9 |
7790 |
7863 |
74 |
|
29.7 |
25.7 |
23.0 |
21.6 |
7800 |
7874 |
75 |
|
29.3 |
22.7 |
12.7 |
35.3 |
| Gene |
atp8 |
7738 |
7905 |
168 |
ATG/TAA |
38.1 |
28.0 |
8.3 |
25.6 |
7874 |
8041 |
168 |
ATG/TAA |
37.5 |
29.2 |
9.5 |
23.8 |
7865 |
8032 |
168 |
ATG/TAA |
37.5 |
26.2 |
8.3 |
28.0 |
7876 |
8043 |
168 |
ATG/TAA |
36.9 |
28.0 |
8.3 |
26.8 |
| Gene |
atp6 |
7896 |
8576 |
681 |
ATG/TAA |
30.2 |
25.4 |
10.4 |
34.0 |
8032 |
8714 |
683 |
ATG/TAA |
25.3 |
33.2 |
11.4 |
30.1 |
8023 |
8706 |
684 |
ATG/TAA |
28.8 |
24.3 |
11.5 |
35.4 |
8034 |
8717 |
684 |
ATG/TAA |
29.1 |
27.0 |
10.5 |
33.4 |
| Gene |
cox3 |
8576 |
9356 |
781 |
ATG/T |
29.8 |
24.2 |
15.7 |
30.3 |
8715 |
9498 |
784 |
ATG/T |
26.5 |
30.2 |
16.2 |
27.1 |
8706 |
9489 |
784 |
ATG/T |
26.4 |
22.8 |
17.3 |
33.5 |
8717 |
9500 |
784 |
ATG/T |
28.6 |
25.8 |
15.8 |
29.8 |
| tRNA |
Gly |
9357 |
9426 |
70 |
|
27.1 |
18.6 |
14.3 |
40.0 |
9499 |
9568 |
70 |
|
38.6 |
21.4 |
14.3 |
25.7 |
9490 |
9559 |
70 |
|
35.7 |
21.4 |
14.3 |
28.6 |
9501 |
9570 |
70 |
|
35.7 |
18.6 |
15.7 |
30.0 |
| Gene |
nad3 |
9427 |
9769 |
343 |
ATG/TAA |
26.2 |
26.2 |
13.7 |
33.9 |
9569 |
9911 |
343 |
ATG/AAT |
24.8 |
30.6 |
14.3 |
30.3 |
9560 |
9902 |
343 |
ATG/T |
24.5 |
22.4 |
16.9 |
36.2 |
9571 |
9913 |
343 |
ATG/T |
25.1 |
28.6 |
12.8 |
33.5 |
| tRNA |
Arg |
9770 |
9838 |
69 |
|
34.8 |
18.4 |
15.9 |
30.9 |
9912 |
9980 |
69 |
|
33.3 |
24.6 |
17.4 |
24.7 |
9903 |
9972 |
70 |
|
35.7 |
21.4 |
15.7 |
27.2 |
9914 |
9983 |
70 |
|
35.7 |
18.6 |
15.7 |
30.0 |
| Gene |
nad4L |
9839 |
10135 |
297 |
ATG/TAA |
30.3 |
23.9 |
12.8 |
33.0 |
9981 |
10277 |
297 |
ATG/TAA |
23.9 |
33.0 |
15.5 |
27.6 |
9972 |
10268 |
297 |
ATG/TAA |
26.6 |
24.6 |
13.8 |
35.0 |
9983 |
10279 |
297 |
ATG/TAA |
26.6 |
27.3 |
13.1 |
33.0 |
| Gene |
nad4 |
10129 |
11512 |
1384 |
ATG/T |
32.7 |
24.6 |
11.1 |
31.6 |
10271 |
11648 |
1378 |
ATG/T |
29.0 |
31.5 |
11.5 |
28.0 |
10262 |
11639 |
1378 |
ATG/T |
30.5 |
25.1 |
11.5 |
32.9 |
10273 |
11650 |
1378 |
ATG/T |
31.8 |
26.1 |
11.1 |
31.0 |
| tRNA |
His |
11513 |
11580 |
68 |
|
35.3 |
17.6 |
16.2 |
30.9 |
11649 |
11717 |
69 |
|
36.2 |
20.3 |
15.9 |
27.6 |
11640 |
11708 |
69 |
|
30.4 |
15.9 |
20.3 |
33.4 |
11651 |
11719 |
69 |
|
34.8 |
17.4 |
17.4 |
30.4 |
| tRNA |
Ser (AGY) |
11581 |
11645 |
65 |
|
23.1 |
24.6 |
21.5 |
30.8 |
11718 |
11785 |
68 |
|
23.5 |
27.9 |
25.0 |
23.6 |
11708 |
11774 |
67 |
|
22.4 |
23.9 |
23.9 |
29.8 |
11719 |
11785 |
67 |
|
22.4 |
23.9 |
23.9 |
29.8 |
| tRNA |
Leu (CUN) |
11646 |
11719 |
74 |
|
33.8 |
20.3 |
21.6 |
24.3 |
11786 |
11858 |
73 |
|
32.9 |
21.9 |
20.5 |
24.7 |
11774 |
11847 |
74 |
|
32.4 |
16.2 |
23.0 |
28.4 |
11785 |
11858 |
74 |
|
32.4 |
20.3 |
21.6 |
25.7 |
| Gene |
nad5 |
11720 |
13534 |
1815 |
ATG/TAA |
33.2 |
23.3 |
11.5 |
32.0 |
11859 |
13676 |
1818 |
ATG/TAA |
30.5 |
30.2 |
12.7 |
26.6 |
11848 |
13665 |
1818 |
ATG/TAA |
31.4 |
23.7 |
12.6 |
32.3 |
11859 |
13676 |
1818 |
ATG/TAA |
32.3 |
24.4 |
11.7 |
31.6 |
| Gene |
nad6 [C] |
13530 |
14042 |
513 |
ATG/AGA |
19.9 |
9.4 |
28.1 |
42.6 |
13668 |
14186 |
519 |
ATG/TAA |
15.2 |
10.4 |
35.1 |
39.3 |
13657 |
14175 |
519 |
ATG/TAA |
19.5 |
11.9 |
29.5 |
39.1 |
13668 |
14186 |
519 |
ATG/TAA |
19.8 |
9.4 |
28.7 |
42.1 |
| tRNA |
Glu [C] |
14043 |
14111 |
69 |
|
24.6 |
14.5 |
26.1 |
34.8 |
14187 |
14255 |
69 |
|
26.1 |
14.5 |
26.1 |
33.3 |
14176 |
14245 |
70 |
|
28.6 |
11.4 |
21.4 |
38.6 |
14187 |
14257 |
71 |
|
23.9 |
14.1 |
25.4 |
36.6 |
| Gene |
cytb |
14114 |
15253 |
1140 |
ATG/TAG |
29.5 |
25.4 |
12.6 |
32.5 |
14258 |
15400 |
1143 |
ATG/TAG |
27.4 |
30.4 |
14.4 |
27.8 |
14246 |
15388 |
1143 |
ATG/TAG |
27.7 |
23.3 |
14.8 |
34.2 |
14258 |
15400 |
1143 |
ATG/TAG |
28.6 |
26.2 |
13.1 |
32.1 |
| tRNA |
Thr |
15253 |
15322 |
70 |
|
30.0 |
22.9 |
20.0 |
27.1 |
15400 |
15470 |
71 |
|
26.8 |
26.8 |
22.5 |
23.9 |
15388 |
15458 |
71 |
|
26.8 |
25.4 |
21.1 |
26.7 |
15400 |
15471 |
72 |
|
29.2 |
25.0 |
20.8 |
25.0 |
| tRNA |
Pro [C] |
15350 |
15418 |
69 |
|
21.7 |
11.6 |
38.4 |
28.3 |
15500 |
15566 |
67 |
|
22.4 |
11.9 |
29.9 |
35.8 |
15499 |
15565 |
67 |
|
20.9 |
11.9 |
31.3 |
35.9 |
15497 |
15563 |
67 |
|
23.9 |
10.4 |
28.4 |
37.3 |
| Cont region | D-loop | 15419 | 17552 | 2134 | 39.3 | 17.9 | 9.4 | 33.4 | 15567 | 17610 | 2044 | 39.0 | 20.2 | 10.7 | 30.1 | 15566 | 17474 | 1909 | 37.2 | 19.0 | 9.8 | 34.0 | 15564 | 17716 | 2153 | 39.3 | 19.0 | 9.1 | 32.6 | ||||
Initiation and termination codons and base contents (%) are also indicated. Gene transcribed in the reverse (complementary) direction are indicated with [C].