Champsocephalus gunnari
Mackerel icefish
GC content
46.81%
Whole genome
Non-coding
2,595 bp
D-loop 2,107 bp
Where Mackerel icefish sits among 2,335 species
Whole-genome GC content against maximum lifespan. Mackerel icefish has the 1,358th longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome18,863 bp
- GC skew (G − C) / (G + C)
- −0.259
- AT skew (A − T) / (A + T)
- +0.020
About this record
- Lifespan source
- FishBase v26.06
- Based on
- an observed animal, origin not stated
- 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 genome18,863 bp
Protein-coding11,939 bp
12S rRNA946 bp
16S rRNA1,694 bp
All tRNA1,689 bp
D-loop2,107 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 48.10% | −0.301 | −0.099 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,046 bp | 50.19% | −0.379 | +0.021 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 48.29% | −0.239 | −0.087 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 45.44% | −0.287 | −0.040 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 44.05% | −0.378 | +0.064 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 45.61% | −0.378 | −0.081 | |||||
| COX3Cytochrome c oxidase subunit III | 785 bp | 49.05% | −0.247 | −0.060 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 49.28% | −0.326 | −0.243 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 48.15% | −0.315 | −0.130 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 46.34% | −0.316 | −0.026 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,838 bp | 45.92% | −0.329 | −0.024 | |||||
| ND6NADH dehydrogenase subunit 6 | 525 bp | 50.48% | −0.426 | +0.277 | |||||
| CYTBCytochrome b | 1,141 bp | 48.47% | −0.309 | −0.119 | |||||
| 12S rRNA12S ribosomal RNA | 946 bp | 48.10% | −0.046 | +0.161 | |||||
| 16S rRNA16S ribosomal RNA | 1,694 bp | 46.28% | −0.102 | +0.215 | |||||
| D-loopControl region (D-loop) | 2,107 bp | 41.62% | −0.186 | −0.011 |
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 F6.0%
UUU109
UUC120
Leu L16.6%
UUA105
UUG24
CUU142
CUC160
CUA160
CUG41
Ile I6.6%
AUU121
AUC131
Met M4.3%
AUA110
AUG55
Val V6.5%
GUU64
GUC61
GUA76
GUG48
Ser S6.5%
UCU54
UCC65
UCA55
UCG8
AGU14
AGC53
Pro P5.8%
CCU51
CCC112
CCA45
CCG12
Thr T7.6%
ACU52
ACC120
ACA104
ACG13
Ala A9.7%
GCU81
GCC157
GCA115
GCG17
Tyr Y2.9%
UAU40
UAC72
His H2.8%
CAU33
CAC75
Gln Q2.7%
CAA83
CAG20
Asn N2.7%
AAU29
AAC72
Lys K2.0%
AAA60
AAG18
Asp D2.0%
GAU17
GAC60
Glu E2.5%
GAA58
GAG38
Cys C0.9%
UGU15
UGC20
Trp W3.0%
UGA81
UGG33
Arg R2.0%
CGU12
CGC19
CGA36
CGG10
Gly G6.4%
GGU29
GGC98
GGA56
GGG62
Stop 0.2%
UAA3
UAG2
AGA0
AGG1
Genome map
42 annotated features in NC_018340.1Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.
- Protein-coding14
- rRNA2
- tRNA24
- D-loop2
- Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
- Middle ring: GC% of each gene against the whole genome (46.8%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 42 features as a table
| Feature | Type | Start | End | Length | Strand | GC |
|---|---|---|---|---|---|---|
| tRNA-Phe | Transfer RNA | 1 | 68 | 68 bp | + | – |
| 12S rRNA | Ribosomal RNA | 69 | 1,014 | 946 bp | + | 48.1% |
| tRNA-Val | Transfer RNA | 1,015 | 1,086 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,087 | 2,780 | 1,694 bp | + | 46.3% |
| tRNA-Leu (UUR) | Transfer RNA | 2,781 | 2,854 | 74 bp | + | – |
| ND1 | Protein-coding gene | 2,855 | 3,829 | 975 bp | + | 48.1% |
| tRNA-Ile | Transfer RNA | 3,834 | 3,903 | 70 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,903 | 3,974 | 72 bp | − | – |
| tRNA-Met | Transfer RNA | 3,974 | 4,042 | 69 bp | + | – |
| ND2 | Protein-coding gene | 4,043 | 5,088 | 1,046 bp | + | 50.2% |
| tRNA-Trp | Transfer RNA | 5,089 | 5,159 | 71 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,161 | 5,229 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,231 | 5,303 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,339 | 5,405 | 67 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,406 | 5,473 | 68 bp | − | – |
| COX1 | Protein-coding gene | 5,475 | 7,025 | 1,551 bp | + | 48.3% |
| tRNA-Ser (UCN) | Transfer RNA | 7,026 | 7,096 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,098 | 7,168 | 71 bp | + | – |
| COX2 | Protein-coding gene | 7,171 | 7,861 | 691 bp | + | 45.4% |
| tRNA-Lys | Transfer RNA | 7,862 | 7,935 | 74 bp | + | – |
| ATP8 | Protein-coding gene | 7,937 | 8,104 | 168 bp | + | 44.1% |
| ATP6 | Protein-coding gene | 8,095 | 8,778 | 684 bp | + | 45.6% |
| COX3 | Protein-coding gene | 8,815 | 9,599 | 785 bp | + | 49.1% |
| tRNA-Gly | Transfer RNA | 9,600 | 9,669 | 70 bp | + | – |
| ND3 | Protein-coding gene | 9,670 | 10,018 | 349 bp | + | 49.3% |
| tRNA-Arg | Transfer RNA | 10,019 | 10,087 | 69 bp | + | – |
| ND4L | Protein-coding gene | 10,088 | 10,384 | 297 bp | + | 48.2% |
| ND4 | Protein-coding gene | 10,378 | 11,758 | 1,381 bp | + | 46.3% |
| tRNA-His | Transfer RNA | 11,759 | 11,827 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,828 | 11,899 | 72 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,900 | 11,971 | 72 bp | + | – |
| ND5 | Protein-coding gene | 11,972 | 13,809 | 1,838 bp | + | 45.9% |
| CYTB | Protein-coding gene | 13,917 | 15,057 | 1,141 bp | + | 48.5% |
| tRNA-Thr | Transfer RNA | 15,058 | 15,129 | 72 bp | + | – |
| ND6 | Protein-coding gene | 15,354 | 15,878 | 525 bp | − | 50.5% |
| tRNA-Glu | Transfer RNA | 15,879 | 15,947 | 69 bp | − | – |
| tRNA-Pro | Transfer RNA | 15,985 | 16,054 | 70 bp | − | – |
| D-loop | Control region | 16,055 | 17,059 | 1,005 bp | – | 41.6% |
| ND6 | Protein-coding gene | 17,060 | 17,584 | 525 bp | − | 50.5% |
| tRNA-Glu | Transfer RNA | 17,585 | 17,653 | 69 bp | − | – |
| tRNA-Pro | Transfer RNA | 17,692 | 17,761 | 70 bp | − | – |
| D-loop | Control region | 17,762 | 18,863 | 1,102 bp | – | 41.6% |