Acanthopagrus schlegelii
Blackhead seabream
GC content
44.09%
Whole genome
Non-coding
1,032 bp
D-loop 945 bp
Where Blackhead seabream sits among 2,335 species
Whole-genome GC content against maximum lifespan. Blackhead seabream has the 522nd longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,649 bp
- GC skew (G − C) / (G + C)
- −0.266
- AT skew (A − T) / (A + T)
- +0.002
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 genome16,649 bp
Protein-coding11,422 bp
12S rRNA958 bp
16S rRNA1,696 bp
All tRNA1,554 bp
D-loop945 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 47.28% | −0.362 | −0.117 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,046 bp | 47.42% | −0.444 | −0.062 | |||||
| COX1Cytochrome c oxidase subunit I | 1,566 bp | 43.17% | −0.186 | −0.108 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 42.69% | −0.200 | −0.015 | |||||
| ATP8ATP synthase F0 subunit 8 | 165 bp | 44.24% | −0.452 | 0.000 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 43.57% | −0.416 | −0.140 | |||||
| COX3Cytochrome c oxidase subunit III | 785 bp | 45.10% | −0.237 | −0.109 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 47.28% | −0.382 | −0.207 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 48.82% | −0.434 | −0.118 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 44.46% | −0.319 | −0.056 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,839 bp | 43.23% | −0.389 | −0.011 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 41.76% | −0.367 | +0.336 | |||||
| CYTBCytochrome b | 1,141 bp | 44.70% | −0.333 | −0.071 | |||||
| 12S rRNA12S ribosomal RNA | 958 bp | 46.97% | −0.071 | +0.142 | |||||
| 16S rRNA16S ribosomal RNA | 1,696 bp | 43.93% | −0.074 | +0.216 | |||||
| D-loopControl region (D-loop) | 945 bp | 35.56% | −0.208 | +0.034 |
Codon usage
Counts per codon, darker is more frequent3,811 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F6.2%
UUU109
UUC129
Leu L17.7%
UUA104
UUG22
CUU173
CUC166
CUA152
CUG56
Ile I7.1%
AUU185
AUC84
Met M4.0%
AUA99
AUG52
Val V6.0%
GUU78
GUC54
GUA79
GUG17
Ser S6.8%
UCU56
UCC83
UCA60
UCG4
AGU14
AGC41
Pro P5.6%
CCU56
CCC85
CCA68
CCG6
Thr T7.5%
ACU65
ACC104
ACA104
ACG12
Ala A9.0%
GCU78
GCC138
GCA120
GCG7
Tyr Y2.8%
UAU62
UAC44
His H2.9%
CAU43
CAC66
Gln Q2.5%
CAA82
CAG14
Asn N3.0%
AAU41
AAC74
Lys K2.0%
AAA69
AAG8
Asp D1.9%
GAU24
GAC50
Glu E2.7%
GAA86
GAG15
Cys C0.7%
UGU8
UGC19
Trp W3.1%
UGA104
UGG15
Arg R2.0%
CGU11
CGC18
CGA40
CGG7
Gly G6.4%
GGU55
GGC73
GGA82
GGG34
Stop 0.2%
UAA5
UAG1
AGA0
AGG1
Genome map
38 annotated features in NC_018553.1Hover, 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 (44.1%, 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 | 1,026 | 958 bp | + | 47.0% |
| tRNA-Val | Transfer RNA | 1,027 | 1,098 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,099 | 2,794 | 1,696 bp | + | 43.9% |
| tRNA-Leu (UUR) | Transfer RNA | 2,795 | 2,867 | 73 bp | + | – |
| ND1 | Protein-coding gene | 2,868 | 3,842 | 975 bp | + | 47.3% |
| tRNA-Ile | Transfer RNA | 3,847 | 3,916 | 70 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,916 | 3,986 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,986 | 4,055 | 70 bp | + | – |
| ND2 | Protein-coding gene | 4,056 | 5,101 | 1,046 bp | + | 47.4% |
| tRNA-Trp | Transfer RNA | 5,102 | 5,172 | 71 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,173 | 5,241 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,244 | 5,316 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,346 | 5,412 | 67 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,413 | 5,482 | 70 bp | − | – |
| COX1 | Protein-coding gene | 5,484 | 7,049 | 1,566 bp | + | 43.2% |
| tRNA-Ser (UCN) | Transfer RNA | 7,037 | 7,107 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,111 | 7,183 | 73 bp | + | – |
| COX2 | Protein-coding gene | 7,192 | 7,882 | 691 bp | + | 42.7% |
| tRNA-Lys | Transfer RNA | 7,883 | 7,956 | 74 bp | + | – |
| ATP8 | Protein-coding gene | 7,958 | 8,122 | 165 bp | + | 44.2% |
| ATP6 | Protein-coding gene | 8,116 | 8,799 | 684 bp | + | 43.6% |
| COX3 | Protein-coding gene | 8,799 | 9,583 | 785 bp | + | 45.1% |
| tRNA-Gly | Transfer RNA | 9,584 | 9,655 | 72 bp | + | – |
| ND3 | Protein-coding gene | 9,656 | 10,004 | 349 bp | + | 47.3% |
| tRNA-Arg | Transfer RNA | 10,005 | 10,075 | 71 bp | + | – |
| ND4L | Protein-coding gene | 10,077 | 10,373 | 297 bp | + | 48.8% |
| ND4 | Protein-coding gene | 10,367 | 11,747 | 1,381 bp | + | 44.5% |
| tRNA-His | Transfer RNA | 11,748 | 11,816 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,817 | 11,884 | 68 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,918 | 11,990 | 73 bp | + | – |
| ND5 | Protein-coding gene | 11,992 | 13,830 | 1,839 bp | + | 43.2% |
| ND6 | Protein-coding gene | 13,827 | 14,348 | 522 bp | − | 41.8% |
| tRNA-Glu | Transfer RNA | 14,349 | 14,417 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,422 | 15,562 | 1,141 bp | + | 44.7% |
| tRNA-Thr | Transfer RNA | 15,563 | 15,634 | 72 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,634 | 15,704 | 71 bp | − | – |
| D-loop | Control region | 15,705 | 16,649 | 945 bp | – | 35.6% |