Clarias gariepinus
North African catfish
GC content
42.79%
Whole genome
Non-coding
938 bp
D-loop 864 bp
Where North African catfish sits among 2,335 species
Whole-genome GC content against maximum lifespan. North African catfish has the 641st longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,508 bp
- GC skew (G − C) / (G + C)
- −0.307
- AT skew (A − T) / (A + T)
- +0.137
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 genome16,508 bp
Protein-coding11,387 bp
12S rRNA952 bp
16S rRNA1,675 bp
All tRNA1,556 bp
D-loop864 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 42.67% | −0.394 | +0.116 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,045 bp | 42.87% | −0.482 | +0.280 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 42.23% | −0.188 | +0.011 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 42.69% | −0.288 | +0.121 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 36.91% | −0.419 | +0.208 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 39.47% | −0.452 | +0.121 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 44.13% | −0.283 | +0.037 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 42.69% | −0.396 | +0.070 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 46.47% | −0.362 | −0.082 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 43.30% | −0.378 | +0.121 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,827 bp | 41.22% | −0.432 | +0.134 | |||||
| ND6NADH dehydrogenase subunit 6 | 519 bp | 43.93% | −0.614 | +0.498 | |||||
| CYTBCytochrome b | 1,138 bp | 43.41% | −0.421 | +0.056 | |||||
| 12S rRNA12S ribosomal RNA | 952 bp | 47.69% | −0.141 | +0.245 | |||||
| 16S rRNA16S ribosomal RNA | 1,675 bp | 43.64% | −0.119 | +0.271 | |||||
| D-loopControl region (D-loop) | 864 bp | 37.27% | −0.217 | +0.030 |
Codon usage
Counts per codon, darker is more frequent3,801 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F5.9%
UUU83
UUC142
Leu L16.6%
UUA112
UUG16
CUU63
CUC78
CUA340
CUG23
Ile I8.0%
AUU146
AUC157
Met M4.7%
AUA139
AUG40
Val V5.4%
GUU42
GUC34
GUA117
GUG14
Ser S5.8%
UCU26
UCC63
UCA88
UCG3
AGU6
AGC33
Pro P5.6%
CCU19
CCC57
CCA130
CCG6
Thr T8.3%
ACU33
ACC115
ACA159
ACG8
Ala A8.6%
GCU45
GCC131
GCA141
GCG9
Tyr Y2.9%
UAU44
UAC68
His H2.8%
CAU31
CAC75
Gln Q2.6%
CAA93
CAG5
Asn N3.6%
AAU47
AAC88
Lys K2.1%
AAA77
AAG3
Asp D2.2%
GAU30
GAC52
Glu E2.6%
GAA89
GAG9
Cys C0.8%
UGU13
UGC16
Trp W3.2%
UGA111
UGG10
Arg R1.9%
CGU6
CGC13
CGA50
CGG4
Gly G6.4%
GGU36
GGC59
GGA111
GGG36
Stop 0.2%
UAA7
UAG0
AGA0
AGG0
Genome map
38 annotated features in NC_027661.1Hover, 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 (42.8%, 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 | 69 | 69 bp | + | – |
| 12S rRNA | Ribosomal RNA | 70 | 1,021 | 952 bp | + | 47.7% |
| tRNA-Val | Transfer RNA | 1,022 | 1,093 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,094 | 2,768 | 1,675 bp | + | 43.6% |
| tRNA-Leu (UUR) | Transfer RNA | 2,769 | 2,843 | 75 bp | + | – |
| ND1 | Protein-coding gene | 2,844 | 3,818 | 975 bp | + | 42.7% |
| tRNA-Ile | Transfer RNA | 3,824 | 3,895 | 72 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,895 | 3,965 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,965 | 4,034 | 70 bp | + | – |
| ND2 | Protein-coding gene | 4,035 | 5,079 | 1,045 bp | + | 42.9% |
| tRNA-Trp | Transfer RNA | 5,080 | 5,150 | 71 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,154 | 5,222 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,224 | 5,296 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,328 | 5,394 | 67 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,406 | 5,475 | 70 bp | − | – |
| COX1 | Protein-coding gene | 5,477 | 7,027 | 1,551 bp | + | 42.2% |
| tRNA-Ser (UCN) | Transfer RNA | 7,028 | 7,098 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,103 | 7,175 | 73 bp | + | – |
| COX2 | Protein-coding gene | 7,190 | 7,880 | 691 bp | + | 42.7% |
| tRNA-Lys | Transfer RNA | 7,881 | 7,954 | 74 bp | + | – |
| ATP8 | Protein-coding gene | 7,956 | 8,123 | 168 bp | + | 36.9% |
| ATP6 | Protein-coding gene | 8,114 | 8,797 | 684 bp | + | 39.5% |
| COX3 | Protein-coding gene | 8,797 | 9,580 | 784 bp | + | 44.1% |
| tRNA-Gly | Transfer RNA | 9,581 | 9,653 | 73 bp | + | – |
| ND3 | Protein-coding gene | 9,654 | 10,002 | 349 bp | + | 42.7% |
| tRNA-Arg | Transfer RNA | 10,003 | 10,071 | 69 bp | + | – |
| ND4L | Protein-coding gene | 10,072 | 10,368 | 297 bp | + | 46.5% |
| ND4 | Protein-coding gene | 10,362 | 11,742 | 1,381 bp | + | 43.3% |
| tRNA-His | Transfer RNA | 11,743 | 11,812 | 70 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,813 | 11,878 | 66 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,881 | 11,953 | 73 bp | + | – |
| ND5 | Protein-coding gene | 11,954 | 13,780 | 1,827 bp | + | 41.2% |
| ND6 | Protein-coding gene | 13,777 | 14,295 | 519 bp | − | 43.9% |
| tRNA-Glu | Transfer RNA | 14,296 | 14,364 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,366 | 15,503 | 1,138 bp | + | 43.4% |
| tRNA-Thr | Transfer RNA | 15,504 | 15,576 | 73 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,575 | 15,644 | 70 bp | − | – |
| D-loop | Control region | 15,645 | 16,508 | 864 bp | – | 37.3% |