Scomberomorus semifasciatus
Broad-barred king mackerel
GC content
45.03%
Whole genome
Non-coding
939 bp
D-loop 855 bp
Where Broad-barred king mackerel sits among 2,335 species
Whole-genome GC content against maximum lifespan. Broad-barred king mackerel has the 1,440th longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,548 bp
- GC skew (G − C) / (G + C)
- −0.290
- AT skew (A − T) / (A + T)
- +0.038
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 genome16,548 bp
Protein-coding11,417 bp
12S rRNA953 bp
16S rRNA1,698 bp
All tRNA1,550 bp
D-loop855 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 45.74% | −0.381 | −0.062 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,046 bp | 46.56% | −0.491 | +0.048 | |||||
| COX1Cytochrome c oxidase subunit I | 1,560 bp | 45.32% | −0.214 | −0.067 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 43.42% | −0.273 | +0.008 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 42.26% | −0.408 | +0.113 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 44.74% | −0.379 | −0.074 | |||||
| COX3Cytochrome c oxidase subunit III | 785 bp | 48.28% | −0.298 | −0.079 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 45.85% | −0.350 | −0.196 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 51.85% | −0.455 | −0.035 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 44.39% | −0.370 | −0.003 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,839 bp | 44.32% | −0.411 | +0.020 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 42.15% | −0.527 | +0.430 | |||||
| CYTBCytochrome b | 1,141 bp | 46.19% | −0.378 | −0.049 | |||||
| 12S rRNA12S ribosomal RNA | 953 bp | 48.48% | −0.061 | +0.153 | |||||
| 16S rRNA16S ribosomal RNA | 1,698 bp | 45.35% | −0.088 | +0.207 | |||||
| D-loopControl region (D-loop) | 855 bp | 36.49% | −0.179 | +0.031 |
Codon usage
Counts per codon, darker is more frequent3,810 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F6.3%
UUU92
UUC148
Leu L17.3%
UUA92
UUG15
CUU160
CUC157
CUA201
CUG33
Ile I6.8%
AUU157
AUC103
Met M4.3%
AUA115
AUG49
Val V5.9%
GUU69
GUC60
GUA80
GUG16
Ser S6.5%
UCU40
UCC79
UCA58
UCG10
AGU10
AGC49
Pro P5.9%
CCU65
CCC87
CCA66
CCG8
Thr T7.8%
ACU51
ACC127
ACA115
ACG6
Ala A8.9%
GCU64
GCC152
GCA114
GCG10
Tyr Y2.8%
UAU39
UAC68
His H2.8%
CAU40
CAC67
Gln Q2.4%
CAA81
CAG12
Asn N3.2%
AAU52
AAC70
Lys K1.9%
AAA67
AAG5
Asp D2.0%
GAU28
GAC49
Glu E2.8%
GAA86
GAG20
Cys C0.7%
UGU9
UGC17
Trp W3.1%
UGA98
UGG19
Arg R2.0%
CGU7
CGC14
CGA53
CGG3
Gly G6.3%
GGU47
GGC75
GGA79
GGG40
Stop 0.2%
UAA6
UAG0
AGA0
AGG1
Genome map
38 annotated features in NC_021391.1Hover, 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 (45.0%, 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 |
|---|---|---|---|---|---|---|
| CYTB | Protein-coding gene | 1 | 1,141 | 1,141 bp | + | 46.2% |
| tRNA-Thr | Transfer RNA | 1,142 | 1,211 | 70 bp | + | – |
| tRNA-Pro | Transfer RNA | 1,212 | 1,280 | 69 bp | − | – |
| D-loop | Control region | 1,281 | 2,135 | 855 bp | – | 36.5% |
| tRNA-Phe | Transfer RNA | 2,136 | 2,203 | 68 bp | + | – |
| 12S rRNA | Ribosomal RNA | 2,204 | 3,156 | 953 bp | + | 48.5% |
| tRNA-Val | Transfer RNA | 3,157 | 3,228 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 3,229 | 4,926 | 1,698 bp | + | 45.4% |
| tRNA-Leu (UUR) | Transfer RNA | 4,927 | 5,000 | 74 bp | + | – |
| ND1 | Protein-coding gene | 5,001 | 5,975 | 975 bp | + | 45.7% |
| tRNA-Ile | Transfer RNA | 5,980 | 6,050 | 71 bp | + | – |
| tRNA-Gln | Transfer RNA | 6,050 | 6,120 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 6,121 | 6,188 | 68 bp | + | – |
| ND2 | Protein-coding gene | 6,189 | 7,234 | 1,046 bp | + | 46.6% |
| tRNA-Trp | Transfer RNA | 7,235 | 7,307 | 73 bp | + | – |
| tRNA-Ala | Transfer RNA | 7,309 | 7,377 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 7,379 | 7,451 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 7,487 | 7,552 | 66 bp | − | – |
| tRNA-Tyr | Transfer RNA | 7,553 | 7,619 | 67 bp | − | – |
| COX1 | Protein-coding gene | 7,621 | 9,180 | 1,560 bp | + | 45.3% |
| tRNA-Ser (UCN) | Transfer RNA | 9,172 | 9,243 | 72 bp | − | – |
| tRNA-Asp | Transfer RNA | 9,247 | 9,319 | 73 bp | + | – |
| COX2 | Protein-coding gene | 9,327 | 10,017 | 691 bp | + | 43.4% |
| tRNA-Lys | Transfer RNA | 10,018 | 10,091 | 74 bp | + | – |
| ATP8 | Protein-coding gene | 10,093 | 10,260 | 168 bp | + | 42.3% |
| ATP6 | Protein-coding gene | 10,251 | 10,934 | 684 bp | + | 44.7% |
| COX3 | Protein-coding gene | 10,958 | 11,742 | 785 bp | + | 48.3% |
| tRNA-Gly | Transfer RNA | 11,743 | 11,814 | 72 bp | + | – |
| ND3 | Protein-coding gene | 11,815 | 12,163 | 349 bp | + | 45.9% |
| tRNA-Arg | Transfer RNA | 12,164 | 12,232 | 69 bp | + | – |
| ND4L | Protein-coding gene | 12,233 | 12,529 | 297 bp | + | 51.9% |
| ND4 | Protein-coding gene | 12,523 | 13,903 | 1,381 bp | + | 44.4% |
| tRNA-His | Transfer RNA | 13,904 | 13,973 | 70 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 13,974 | 14,041 | 68 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 14,046 | 14,118 | 73 bp | + | – |
| ND5 | Protein-coding gene | 14,119 | 15,957 | 1,839 bp | + | 44.3% |
| ND6 | Protein-coding gene | 15,954 | 16,475 | 522 bp | − | 42.2% |
| tRNA-Glu | Transfer RNA | 16,476 | 16,544 | 69 bp | − | – |