Pangasianodon gigas
Mekong giant catfish
GC content
44.08%
Whole genome
Non-coding
962 bp
D-loop 899 bp
Where Mekong giant catfish sits among 2,335 species
Whole-genome GC content against maximum lifespan. Mekong giant catfish has the 336th longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,533 bp
- GC skew (G − C) / (G + C)
- −0.290
- AT skew (A − T) / (A + T)
- +0.088
About this record
- Lifespan source
- FishBase v26.06
- Based on
- an animal in captivity
- 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 genome16,533 bp
Protein-coding11,389 bp
12S rRNA959 bp
16S rRNA1,674 bp
All tRNA1,554 bp
D-loop899 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 44.82% | −0.387 | +0.004 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,044 bp | 46.84% | −0.448 | +0.171 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 44.49% | −0.188 | −0.048 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 43.27% | −0.251 | +0.041 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 36.91% | −0.419 | +0.189 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 40.79% | −0.434 | +0.067 | |||||
| COX3Cytochrome c oxidase subunit III | 785 bp | 46.88% | −0.261 | +0.002 | |||||
| ND3NADH dehydrogenase subunit 3 | 351 bp | 45.87% | −0.366 | −0.032 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 48.82% | −0.324 | −0.026 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 43.95% | −0.358 | +0.096 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,827 bp | 42.80% | −0.425 | +0.070 | |||||
| ND6NADH dehydrogenase subunit 6 | 519 bp | 45.67% | −0.578 | +0.489 | |||||
| CYTBCytochrome b | 1,138 bp | 44.55% | −0.381 | −0.008 | |||||
| 12S rRNA12S ribosomal RNA | 959 bp | 47.13% | −0.111 | +0.191 | |||||
| 16S rRNA16S ribosomal RNA | 1,674 bp | 44.15% | −0.096 | +0.236 | |||||
| D-loopControl region (D-loop) | 899 bp | 36.37% | −0.223 | +0.028 |
Codon usage
Counts per codon, darker is more frequent3,802 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F5.9%
UUU76
UUC150
Leu L16.8%
UUA106
UUG23
CUU76
CUC100
CUA287
CUG45
Ile I7.7%
AUU153
AUC141
Met M4.3%
AUA123
AUG41
Val V6.0%
GUU44
GUC60
GUA93
GUG30
Ser S5.9%
UCU33
UCC69
UCA73
UCG7
AGU8
AGC36
Pro P5.5%
CCU46
CCC73
CCA85
CCG5
Thr T7.8%
ACU53
ACC110
ACA127
ACG8
Ala A9.0%
GCU67
GCC155
GCA110
GCG12
Tyr Y3.0%
UAU52
UAC61
His H2.9%
CAU39
CAC70
Gln Q2.7%
CAA92
CAG9
Asn N3.3%
AAU31
AAC95
Lys K2.1%
AAA69
AAG11
Asp D2.0%
GAU24
GAC53
Glu E2.6%
GAA84
GAG15
Cys C0.7%
UGU11
UGC15
Trp W3.2%
UGA108
UGG14
Arg R1.9%
CGU7
CGC13
CGA47
CGG6
Gly G6.4%
GGU38
GGC71
GGA100
GGG33
Stop 0.2%
UAA6
UAG3
AGA0
AGG0
Genome map
38 annotated features in NC_006381.1Hover, 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 | 70 | 70 bp | + | – |
| 12S rRNA | Ribosomal RNA | 71 | 1,029 | 959 bp | + | 47.1% |
| tRNA-Val | Transfer RNA | 1,030 | 1,101 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,102 | 2,775 | 1,674 bp | + | 44.2% |
| tRNA-Leu (UUR) | Transfer RNA | 2,776 | 2,850 | 75 bp | + | – |
| ND1 | Protein-coding gene | 2,851 | 3,825 | 975 bp | + | 44.8% |
| tRNA-Ile | Transfer RNA | 3,827 | 3,898 | 72 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,898 | 3,968 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,967 | 4,035 | 69 bp | + | – |
| ND2 | Protein-coding gene | 4,038 | 5,081 | 1,044 bp | + | 46.8% |
| tRNA-Trp | Transfer RNA | 5,080 | 5,150 | 71 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,153 | 5,221 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,223 | 5,295 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,326 | 5,392 | 67 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,395 | 5,464 | 70 bp | − | – |
| COX1 | Protein-coding gene | 5,466 | 7,016 | 1,551 bp | + | 44.5% |
| tRNA-Ser (UCN) | Transfer RNA | 7,018 | 7,086 | 69 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,092 | 7,164 | 73 bp | + | – |
| COX2 | Protein-coding gene | 7,179 | 7,869 | 691 bp | + | 43.3% |
| tRNA-Lys | Transfer RNA | 7,870 | 7,943 | 74 bp | + | – |
| ATP8 | Protein-coding gene | 7,945 | 8,112 | 168 bp | + | 36.9% |
| ATP6 | Protein-coding gene | 8,103 | 8,786 | 684 bp | + | 40.8% |
| COX3 | Protein-coding gene | 8,786 | 9,570 | 785 bp | + | 46.9% |
| tRNA-Gly | Transfer RNA | 9,570 | 9,642 | 73 bp | + | – |
| ND3 | Protein-coding gene | 9,643 | 9,993 | 351 bp | + | 45.9% |
| tRNA-Arg | Transfer RNA | 9,992 | 10,062 | 71 bp | + | – |
| ND4L | Protein-coding gene | 10,063 | 10,359 | 297 bp | + | 48.8% |
| ND4 | Protein-coding gene | 10,353 | 11,733 | 1,381 bp | + | 44.0% |
| tRNA-His | Transfer RNA | 11,734 | 11,803 | 70 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,804 | 11,870 | 67 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,873 | 11,944 | 72 bp | + | – |
| ND5 | Protein-coding gene | 11,945 | 13,771 | 1,827 bp | + | 42.8% |
| ND6 | Protein-coding gene | 13,768 | 14,286 | 519 bp | − | 45.7% |
| tRNA-Glu | Transfer RNA | 14,287 | 14,355 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,357 | 15,494 | 1,138 bp | + | 44.6% |
| tRNA-Thr | Transfer RNA | 15,495 | 15,566 | 72 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,565 | 15,634 | 70 bp | − | – |
| D-loop | Control region | 15,635 | 16,533 | 899 bp | – | 36.4% |