Squaliobarbus curriculus
Barbel chub
GC content
43.83%
Whole genome
Non-coding
1,001 bp
D-loop 935 bp
Where Barbel chub sits among 2,335 species
Whole-genome GC content against maximum lifespan. Barbel chub has the 560th longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,619 bp
- GC skew (G − C) / (G + C)
- −0.264
- AT skew (A − T) / (A + T)
- +0.111
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 genome16,619 bp
Protein-coding11,404 bp
12S rRNA959 bp
16S rRNA1,694 bp
All tRNA1,561 bp
D-loop935 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 46.05% | −0.323 | +0.091 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,045 bp | 45.84% | −0.428 | +0.187 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 44.23% | −0.195 | −0.040 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 43.99% | −0.243 | +0.075 | |||||
| ATP8ATP synthase F0 subunit 8 | 165 bp | 39.39% | −0.477 | +0.260 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 42.25% | −0.377 | +0.018 | |||||
| COX3Cytochrome c oxidase subunit III | 785 bp | 46.75% | −0.264 | +0.033 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 46.99% | −0.354 | +0.005 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 44.78% | −0.323 | −0.012 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,382 bp | 43.27% | −0.338 | +0.087 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,836 bp | 42.54% | −0.391 | +0.107 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 45.21% | −0.449 | +0.510 | |||||
| CYTBCytochrome b | 1,141 bp | 43.56% | −0.332 | +0.034 | |||||
| 12S rRNA12S ribosomal RNA | 959 bp | 50.05% | −0.096 | +0.253 | |||||
| 16S rRNA16S ribosomal RNA | 1,694 bp | 42.98% | −0.071 | +0.292 | |||||
| D-loopControl region (D-loop) | 935 bp | 33.69% | −0.251 | +0.013 |
Codon usage
Counts per codon, darker is more frequent3,805 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F5.9%
UUU72
UUC153
Leu L16.3%
UUA87
UUG29
CUU93
CUC102
CUA261
CUG47
Ile I7.5%
AUU145
AUC140
Met M4.6%
AUA124
AUG50
Val V6.1%
GUU51
GUC46
GUA103
GUG33
Ser S6.3%
UCU40
UCC61
UCA78
UCG7
AGU10
AGC45
Pro P5.7%
CCU33
CCC57
CCA115
CCG11
Thr T8.2%
ACU54
ACC104
ACA144
ACG11
Ala A8.7%
GCU45
GCC144
GCA132
GCG10
Tyr Y3.0%
UAU45
UAC69
His H2.8%
CAU23
CAC82
Gln Q2.5%
CAA90
CAG7
Asn N3.2%
AAU43
AAC78
Lys K2.1%
AAA72
AAG8
Asp D2.0%
GAU19
GAC59
Glu E2.7%
GAA85
GAG17
Cys C0.7%
UGU11
UGC14
Trp W3.2%
UGA112
UGG9
Arg R2.0%
CGU12
CGC13
CGA44
CGG7
Gly G6.4%
GGU30
GGC45
GGA127
GGG40
Stop 0.2%
UAA5
UAG2
AGA0
AGG0
Genome map
38 annotated features in NC_019652.1Hover, 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 (43.8%, 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 | 1,028 | 959 bp | + | 50.1% |
| tRNA-Val | Transfer RNA | 1,029 | 1,100 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,101 | 2,794 | 1,694 bp | + | 43.0% |
| tRNA-Leu (UUR) | Transfer RNA | 2,795 | 2,870 | 76 bp | + | – |
| ND1 | Protein-coding gene | 2,872 | 3,846 | 975 bp | + | 46.1% |
| tRNA-Ile | Transfer RNA | 3,851 | 3,922 | 72 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,921 | 3,991 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,993 | 4,061 | 69 bp | + | – |
| ND2 | Protein-coding gene | 4,062 | 5,106 | 1,045 bp | + | 45.8% |
| tRNA-Trp | Transfer RNA | 5,107 | 5,177 | 71 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,179 | 5,247 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,249 | 5,321 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,354 | 5,421 | 68 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,423 | 5,493 | 71 bp | − | – |
| COX1 | Protein-coding gene | 5,495 | 7,045 | 1,551 bp | + | 44.2% |
| tRNA-Ser (UCN) | Transfer RNA | 7,046 | 7,116 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,120 | 7,193 | 74 bp | + | – |
| COX2 | Protein-coding gene | 7,207 | 7,897 | 691 bp | + | 44.0% |
| tRNA-Lys | Transfer RNA | 7,898 | 7,973 | 76 bp | + | – |
| ATP8 | Protein-coding gene | 7,975 | 8,139 | 165 bp | + | 39.4% |
| ATP6 | Protein-coding gene | 8,133 | 8,816 | 684 bp | + | 42.3% |
| COX3 | Protein-coding gene | 8,816 | 9,600 | 785 bp | + | 46.8% |
| tRNA-Gly | Transfer RNA | 9,601 | 9,672 | 72 bp | + | – |
| ND3 | Protein-coding gene | 9,673 | 10,021 | 349 bp | + | 47.0% |
| tRNA-Arg | Transfer RNA | 10,022 | 10,091 | 70 bp | + | – |
| ND4L | Protein-coding gene | 10,092 | 10,388 | 297 bp | + | 44.8% |
| ND4 | Protein-coding gene | 10,382 | 11,763 | 1,382 bp | + | 43.3% |
| tRNA-His | Transfer RNA | 11,764 | 11,832 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,834 | 11,900 | 67 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,903 | 11,975 | 73 bp | + | – |
| ND5 | Protein-coding gene | 11,976 | 13,811 | 1,836 bp | + | 42.5% |
| ND6 | Protein-coding gene | 13,808 | 14,329 | 522 bp | − | 45.2% |
| tRNA-Glu | Transfer RNA | 14,330 | 14,398 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,403 | 15,543 | 1,141 bp | + | 43.6% |
| tRNA-Thr | Transfer RNA | 15,544 | 15,615 | 72 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,615 | 15,684 | 70 bp | − | – |
| D-loop | Control region | 15,685 | 16,619 | 935 bp | – | 33.7% |