Galeus melastomus
Blackmouth catshark
GC content
36.80%
Whole genome
Non-coding
1,124 bp
D-loop 1,058 bp
Where Blackmouth catshark sits among 2,335 species
Whole-genome GC content against maximum lifespan. Blackmouth catshark has the 1,743rd longest lifespan of them.
- This species
- Other sharks and rays
- Other classes
Base composition
Whole genome16,706 bp
- GC skew (G − C) / (G + C)
- −0.231
- AT skew (A − T) / (A + T)
- −0.021
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 genome16,706 bp
Protein-coding11,407 bp
12S rRNA954 bp
16S rRNA1,668 bp
All tRNA1,553 bp
D-loop1,058 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 37.13% | −0.304 | −0.077 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,045 bp | 35.22% | −0.440 | −0.034 | |||||
| COX1Cytochrome c oxidase subunit I | 1,557 bp | 38.18% | −0.128 | −0.127 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 36.18% | −0.216 | +0.025 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 24.41% | −0.463 | +0.071 | |||||
| ATP6ATP synthase F0 subunit 6 | 683 bp | 33.38% | −0.360 | −0.073 | |||||
| COX3Cytochrome c oxidase subunit III | 786 bp | 40.84% | −0.202 | −0.045 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 39.54% | −0.203 | −0.213 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 39.06% | −0.362 | −0.138 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 34.11% | −0.274 | −0.055 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,830 bp | 34.21% | −0.364 | −0.068 | |||||
| ND6NADH dehydrogenase subunit 6 | 525 bp | 36.00% | −0.481 | +0.298 | |||||
| CYTBCytochrome b | 1,145 bp | 37.56% | −0.326 | −0.141 | |||||
| 12S rRNA12S ribosomal RNA | 954 bp | 42.66% | −0.061 | +0.126 | |||||
| 16S rRNA16S ribosomal RNA | 1,668 bp | 36.63% | −0.064 | +0.124 | |||||
| D-loopControl region (D-loop) | 1,058 bp | 34.50% | −0.189 | −0.036 |
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 F6.8%
UUU184
UUC73
Leu L17.0%
UUA275
UUG14
CUU132
CUC77
CUA136
CUG12
Ile I9.0%
AUU291
AUC51
Met M4.6%
AUA143
AUG33
Val V4.8%
GUU71
GUC15
GUA85
GUG12
Ser S6.8%
UCU49
UCC57
UCA90
UCG9
AGU20
AGC35
Pro P5.4%
CCU54
CCC53
CCA97
CCG2
Thr T7.2%
ACU75
ACC79
ACA116
ACG4
Ala A7.6%
GCU67
GCC115
GCA100
GCG7
Tyr Y3.1%
UAU91
UAC28
His H2.7%
CAU46
CAC55
Gln Q2.5%
CAA89
CAG6
Asn N3.8%
AAU100
AAC46
Lys K2.2%
AAA76
AAG6
Asp D1.9%
GAU53
GAC20
Glu E2.7%
GAA88
GAG14
Cys C0.6%
UGU14
UGC9
Trp W3.2%
UGA110
UGG10
Arg R1.9%
CGU13
CGC20
CGA39
CGG2
Gly G6.1%
GGU72
GGC48
GGA81
GGG31
Stop 0.2%
UAA7
UAG0
AGA0
AGG0
Genome map
38 annotated features in NC_049881.1Hover, 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 (36.8%, 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 | 70 | 70 bp | + | – |
| 12S rRNA | Ribosomal RNA | 71 | 1,024 | 954 bp | + | 42.7% |
| tRNA-Val | Transfer RNA | 1,025 | 1,097 | 73 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,098 | 2,765 | 1,668 bp | + | 36.6% |
| tRNA-Leu (UUR) | Transfer RNA | 2,766 | 2,840 | 75 bp | + | – |
| ND1 | Protein-coding gene | 2,841 | 3,815 | 975 bp | + | 37.1% |
| tRNA-Ile | Transfer RNA | 3,822 | 3,893 | 72 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,894 | 3,963 | 70 bp | − | – |
| tRNA-Met | Transfer RNA | 3,965 | 4,033 | 69 bp | + | – |
| ND2 | Protein-coding gene | 4,034 | 5,078 | 1,045 bp | + | 35.2% |
| tRNA-Trp | Transfer RNA | 5,079 | 5,149 | 71 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,151 | 5,219 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,220 | 5,292 | 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 | 7,025 | 1,557 bp | + | 38.2% |
| tRNA-Ser (UCN) | Transfer RNA | 7,027 | 7,097 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,102 | 7,171 | 70 bp | + | – |
| COX2 | Protein-coding gene | 7,179 | 7,869 | 691 bp | + | 36.2% |
| tRNA-Lys | Transfer RNA | 7,870 | 7,943 | 74 bp | + | – |
| ATP8 | Protein-coding gene | 7,945 | 8,112 | 168 bp | + | 24.4% |
| ATP6 | Protein-coding gene | 8,103 | 8,785 | 683 bp | + | 33.4% |
| COX3 | Protein-coding gene | 8,786 | 9,571 | 786 bp | + | 40.8% |
| tRNA-Gly | Transfer RNA | 9,574 | 9,643 | 70 bp | + | – |
| ND3 | Protein-coding gene | 9,644 | 9,992 | 349 bp | + | 39.5% |
| tRNA-Arg | Transfer RNA | 9,993 | 10,062 | 70 bp | + | – |
| ND4L | Protein-coding gene | 10,063 | 10,359 | 297 bp | + | 39.1% |
| ND4 | Protein-coding gene | 10,353 | 11,733 | 1,381 bp | + | 34.1% |
| tRNA-His | Transfer RNA | 11,734 | 11,802 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,803 | 11,869 | 67 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,870 | 11,941 | 72 bp | + | – |
| ND5 | Protein-coding gene | 11,942 | 13,771 | 1,830 bp | + | 34.2% |
| ND6 | Protein-coding gene | 13,764 | 14,288 | 525 bp | − | 36.0% |
| tRNA-Glu | Transfer RNA | 14,289 | 14,358 | 70 bp | − | – |
| CYTB | Protein-coding gene | 14,361 | 15,505 | 1,145 bp | + | 37.6% |
| tRNA-Thr | Transfer RNA | 15,506 | 15,577 | 72 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,580 | 15,648 | 69 bp | − | – |
| D-loop | Control region | 15,649 | 16,706 | 1,058 bp | – | 34.5% |