Chaetodon melannotus
Blackback butterflyfish
GC content
47.15%
Whole genome
Non-coding
1,161 bp
Including the D-loop
Where Blackback butterflyfish sits among 2,335 species
Whole-genome GC content against maximum lifespan. Blackback butterflyfish has the 936th longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,739 bp
- GC skew (G − C) / (G + C)
- −0.278
- AT skew (A − T) / (A + T)
- +0.048
About this record
- Lifespan source
- FishBase v26.06
- Based on
- an animal in the wild
- 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 genome16,739 bp
Protein-coding11,400 bp
12S rRNA948 bp
16S rRNA1,681 bp
All tRNA1,551 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 972 bp | 49.59% | −0.378 | −0.045 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,046 bp | 50.38% | −0.522 | +0.071 | |||||
| COX1Cytochrome c oxidase subunit I | 1,545 bp | 48.74% | −0.222 | −0.093 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 46.60% | −0.304 | +0.057 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 47.02% | −0.443 | −0.011 | |||||
| ATP6ATP synthase F0 subunit 6 | 683 bp | 46.71% | −0.373 | −0.176 | |||||
| COX3Cytochrome c oxidase subunit III | 785 bp | 49.68% | −0.272 | −0.058 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 49.28% | −0.279 | −0.186 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 51.18% | −0.395 | −0.186 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 48.88% | −0.422 | +0.065 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,845 bp | 47.86% | −0.416 | +0.056 | |||||
| ND6NADH dehydrogenase subunit 6 | 519 bp | 46.24% | −0.408 | +0.491 | |||||
| CYTBCytochrome b | 1,141 bp | 48.99% | −0.370 | −0.031 | |||||
| 12S rRNA12S ribosomal RNA | 948 bp | 47.15% | −0.051 | +0.162 | |||||
| 16S rRNA16S ribosomal RNA | 1,681 bp | 45.57% | −0.091 | +0.204 |
Codon usage
Counts per codon, darker is more frequent3,804 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F6.2%
UUU89
UUC146
Leu L17.4%
UUA70
UUG17
CUU133
CUC202
CUA179
CUG59
Ile I7.2%
AUU130
AUC145
Met M4.2%
AUA99
AUG59
Val V5.4%
GUU52
GUC60
GUA63
GUG31
Ser S6.3%
UCU33
UCC89
UCA57
UCG8
AGU6
AGC46
Pro P5.9%
CCU53
CCC100
CCA58
CCG15
Thr T7.9%
ACU36
ACC141
ACA111
ACG14
Ala A9.1%
GCU58
GCC182
GCA100
GCG8
Tyr Y2.9%
UAU42
UAC67
His H2.8%
CAU22
CAC86
Gln Q2.6%
CAA78
CAG21
Asn N3.1%
AAU29
AAC90
Lys K2.0%
AAA63
AAG13
Asp D2.0%
GAU20
GAC57
Glu E2.5%
GAA68
GAG26
Cys C0.8%
UGU6
UGC23
Trp W3.1%
UGA83
UGG35
Arg R2.1%
CGU4
CGC22
CGA47
CGG5
Gly G6.4%
GGU31
GGC99
GGA61
GGG51
Stop 0.2%
UAA3
UAG2
AGA1
AGG0
Genome map
37 annotated features in NC_084408.1Hover, 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
- Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
- Middle ring: GC% of each gene against the whole genome (47.1%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 37 features as a table
| Feature | Type | Start | End | Length | Strand | GC |
|---|---|---|---|---|---|---|
| tRNA-Phe | Transfer RNA | 1 | 69 | 69 bp | + | – |
| 12S rRNA | Ribosomal RNA | 70 | 1,017 | 948 bp | + | 47.2% |
| tRNA-Val | Transfer RNA | 1,018 | 1,089 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,091 | 2,771 | 1,681 bp | + | 45.6% |
| tRNA-Leu (UUR) | Transfer RNA | 2,770 | 2,842 | 73 bp | + | – |
| ND1 | Protein-coding gene | 2,843 | 3,814 | 972 bp | + | 49.6% |
| tRNA-Ile | Transfer RNA | 3,822 | 3,891 | 70 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,891 | 3,961 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,961 | 4,030 | 70 bp | + | – |
| ND2 | Protein-coding gene | 4,031 | 5,076 | 1,046 bp | + | 50.4% |
| tRNA-Trp | Transfer RNA | 5,077 | 5,148 | 72 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,149 | 5,217 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,219 | 5,291 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,331 | 5,397 | 67 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,398 | 5,467 | 70 bp | − | – |
| COX1 | Protein-coding gene | 5,469 | 7,013 | 1,545 bp | + | 48.7% |
| tRNA-Ser (UCN) | Transfer RNA | 7,018 | 7,088 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,092 | 7,162 | 71 bp | + | – |
| COX2 | Protein-coding gene | 7,169 | 7,859 | 691 bp | + | 46.6% |
| tRNA-Lys | Transfer RNA | 7,860 | 7,932 | 73 bp | + | – |
| ATP8 | Protein-coding gene | 7,936 | 8,103 | 168 bp | + | 47.0% |
| ATP6 | Protein-coding gene | 8,094 | 8,776 | 683 bp | + | 46.7% |
| COX3 | Protein-coding gene | 8,777 | 9,561 | 785 bp | + | 49.7% |
| tRNA-Gly | Transfer RNA | 9,562 | 9,631 | 70 bp | + | – |
| ND3 | Protein-coding gene | 9,632 | 9,980 | 349 bp | + | 49.3% |
| tRNA-Arg | Transfer RNA | 9,981 | 10,050 | 70 bp | + | – |
| ND4L | Protein-coding gene | 10,051 | 10,347 | 297 bp | + | 51.2% |
| ND4 | Protein-coding gene | 10,341 | 11,721 | 1,381 bp | + | 48.9% |
| tRNA-His | Transfer RNA | 11,722 | 11,791 | 70 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,792 | 11,858 | 67 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,863 | 11,935 | 73 bp | + | – |
| ND5 | Protein-coding gene | 11,936 | 13,780 | 1,845 bp | + | 47.9% |
| ND6 | Protein-coding gene | 13,776 | 14,294 | 519 bp | − | 46.2% |
| tRNA-Glu | Transfer RNA | 14,295 | 14,364 | 70 bp | − | – |
| CYTB | Protein-coding gene | 14,369 | 15,509 | 1,141 bp | + | 49.0% |
| tRNA-Thr | Transfer RNA | 15,510 | 15,580 | 71 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,600 | 15,670 | 71 bp | − | – |