Selene vomer
Lookdown
GC content
46.65%
Whole genome
Non-coding
930 bp
D-loop 1 bp
Where Lookdown sits among 2,335 species
Whole-genome GC content against maximum lifespan. Lookdown has the 2,021st longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,558 bp
- GC skew (G − C) / (G + C)
- −0.305
- AT skew (A − T) / (A + T)
- +0.042
About this record
- Lifespan source
- FishBase v26.06
- Based on
- an animal in captivity
- Data quality
- acceptable
- Licence
- CC BY-NC 4.0
- Status
- New in build 2
- In the database since
- build 2 (2026-11-13)
The lifespan value is for non-commercial use only; the genome data is not restricted by it.
Every change against the 2015 build is in the changelog download.
Composition by region
Reference (L) strand as deposited in RefSeqWhole genome16,558 bp
Protein-coding11,406 bp
12S rRNA955 bp
16S rRNA1,714 bp
All tRNA1,553 bp
D-loop1 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 50.26% | −0.392 | −0.019 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,045 bp | 49.38% | −0.531 | +0.043 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 44.75% | −0.161 | −0.106 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 43.99% | −0.283 | +0.013 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 45.83% | −0.403 | +0.165 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 48.68% | −0.471 | −0.043 | |||||
| COX3Cytochrome c oxidase subunit III | 785 bp | 48.79% | −0.285 | −0.060 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 49.57% | −0.353 | −0.193 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 51.52% | −0.425 | −0.083 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 46.63% | −0.407 | −0.001 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,839 bp | 46.22% | −0.431 | +0.035 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 48.47% | −0.415 | +0.509 | |||||
| CYTBCytochrome b | 1,141 bp | 47.77% | −0.402 | −0.057 | |||||
| 12S rRNA12S ribosomal RNA | 955 bp | 49.22% | −0.094 | +0.171 | |||||
| 16S rRNA16S ribosomal RNA | 1,714 bp | 46.79% | −0.130 | +0.208 | |||||
| D-loopControl region (D-loop) | 1 bp | 0.00% | – | −1.000 |
Codon usage
Counts per codon, darker is more frequent3,807 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F6.1%
UUU93
UUC141
Leu L17.1%
UUA86
UUG15
CUU160
CUC199
CUA156
CUG36
Ile I7.2%
AUU131
AUC144
Met M4.1%
AUA84
AUG71
Val V5.8%
GUU59
GUC85
GUA62
GUG16
Ser S6.2%
UCU46
UCC76
UCA56
UCG8
AGU6
AGC43
Pro P5.9%
CCU51
CCC109
CCA58
CCG6
Thr T7.9%
ACU51
ACC124
ACA105
ACG21
Ala A9.0%
GCU64
GCC158
GCA106
GCG14
Tyr Y2.9%
UAU37
UAC75
His H2.8%
CAU36
CAC72
Gln Q2.5%
CAA86
CAG11
Asn N3.3%
AAU27
AAC97
Lys K1.9%
AAA68
AAG6
Asp D2.1%
GAU23
GAC58
Glu E2.6%
GAA79
GAG20
Cys C0.7%
UGU3
UGC22
Trp W3.2%
UGA104
UGG17
Arg R2.0%
CGU6
CGC20
CGA45
CGG7
Gly G6.3%
GGU23
GGC88
GGA86
GGG44
Stop 0.2%
UAA5
UAG2
AGA0
AGG0
Genome map
38 annotated features in NC_088027.1Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.
- Protein-coding13
- rRNA2
- tRNA22
- D-loop1
- Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
- Middle ring: GC% of each gene against the whole genome (46.6%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 38 features as a table
| Feature | Type | Start | End | Length | Strand | GC |
|---|---|---|---|---|---|---|
| tRNA-Phe | Transfer RNA | 1 | 68 | 68 bp | + | – |
| 12S rRNA | Ribosomal RNA | 69 | 1,023 | 955 bp | + | 49.2% |
| tRNA-Val | Transfer RNA | 1,024 | 1,095 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,096 | 2,809 | 1,714 bp | + | 46.8% |
| tRNA-Leu (UUR) | Transfer RNA | 2,810 | 2,883 | 74 bp | + | – |
| ND1 | Protein-coding gene | 2,884 | 3,858 | 975 bp | + | 50.3% |
| tRNA-Ile | Transfer RNA | 3,864 | 3,933 | 70 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,933 | 4,003 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 4,003 | 4,072 | 70 bp | + | – |
| ND2 | Protein-coding gene | 4,073 | 5,117 | 1,045 bp | + | 49.4% |
| tRNA-Trp | Transfer RNA | 5,118 | 5,188 | 71 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,190 | 5,258 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,260 | 5,332 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,371 | 5,437 | 67 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,438 | 5,507 | 70 bp | − | – |
| COX1 | Protein-coding gene | 5,509 | 7,059 | 1,551 bp | + | 44.8% |
| tRNA-Ser (UCN) | Transfer RNA | 7,060 | 7,130 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,134 | 7,204 | 71 bp | + | – |
| COX2 | Protein-coding gene | 7,212 | 7,902 | 691 bp | + | 44.0% |
| tRNA-Lys | Transfer RNA | 7,903 | 7,977 | 75 bp | + | – |
| ATP8 | Protein-coding gene | 7,979 | 8,146 | 168 bp | + | 45.8% |
| ATP6 | Protein-coding gene | 8,137 | 8,820 | 684 bp | + | 48.7% |
| COX3 | Protein-coding gene | 8,820 | 9,604 | 785 bp | + | 48.8% |
| tRNA-Gly | Transfer RNA | 9,605 | 9,674 | 70 bp | + | – |
| ND3 | Protein-coding gene | 9,675 | 10,023 | 349 bp | + | 49.6% |
| tRNA-Arg | Transfer RNA | 10,024 | 10,092 | 69 bp | + | – |
| ND4L | Protein-coding gene | 10,094 | 10,390 | 297 bp | + | 51.5% |
| ND4 | Protein-coding gene | 10,384 | 11,764 | 1,381 bp | + | 46.6% |
| tRNA-His | Transfer RNA | 11,765 | 11,836 | 72 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,837 | 11,904 | 68 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,911 | 11,983 | 73 bp | + | – |
| ND5 | Protein-coding gene | 11,984 | 13,822 | 1,839 bp | + | 46.2% |
| ND6 | Protein-coding gene | 13,819 | 14,340 | 522 bp | − | 48.5% |
| tRNA-Glu | Transfer RNA | 14,341 | 14,409 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,414 | 15,554 | 1,141 bp | + | 47.8% |
| tRNA-Thr | Transfer RNA | 15,555 | 15,626 | 72 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,626 | 15,696 | 71 bp | − | – |
| D-loop | Control region | 15,697 | 15,697 | 1 bp | – | 0.0% |