Hippocampus capensis
Knysna seahorse
GC content
38.07%
Whole genome
Non-coding
940 bp
D-loop 881 bp
Where Knysna seahorse sits among 2,335 species
Whole-genome GC content against maximum lifespan. Knysna seahorse has the 2,205th longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,529 bp
- GC skew (G − C) / (G + C)
- −0.227
- AT skew (A − T) / (A + T)
- +0.048
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 genome16,529 bp
Protein-coding11,399 bp
12S rRNA937 bp
16S rRNA1,696 bp
All tRNA1,559 bp
D-loop881 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 37.33% | −0.275 | −0.008 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,039 bp | 37.54% | −0.441 | +0.085 | |||||
| COX1Cytochrome c oxidase subunit I | 1,554 bp | 39.96% | −0.114 | −0.106 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 37.92% | −0.191 | +0.040 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 30.95% | −0.423 | +0.086 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 36.26% | −0.403 | −0.041 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 40.05% | −0.217 | −0.081 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 37.25% | −0.323 | −0.096 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 41.08% | −0.393 | −0.029 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 37.80% | −0.341 | +0.020 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,836 bp | 35.02% | −0.331 | +0.038 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 38.89% | −0.360 | +0.392 | |||||
| CYTBCytochrome b | 1,141 bp | 39.70% | −0.245 | −0.047 | |||||
| 12S rRNA12S ribosomal RNA | 937 bp | 40.56% | −0.063 | +0.163 | |||||
| 16S rRNA16S ribosomal RNA | 1,696 bp | 37.91% | −0.064 | +0.219 | |||||
| D-loopControl region (D-loop) | 881 bp | 33.26% | −0.188 | +0.051 |
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 F6.0%
UUU128
UUC99
Leu L16.5%
UUA234
UUG25
CUU123
CUC39
CUA184
CUG24
Ile I8.0%
AUU182
AUC121
Met M5.3%
AUA169
AUG33
Val V5.4%
GUU67
GUC29
GUA96
GUG15
Ser S7.2%
UCU64
UCC39
UCA114
UCG6
AGU18
AGC33
Pro P5.6%
CCU86
CCC55
CCA63
CCG10
Thr T7.8%
ACU58
ACC73
ACA162
ACG4
Ala A7.6%
GCU78
GCC86
GCA121
GCG5
Tyr Y3.0%
UAU65
UAC51
His H2.7%
CAU48
CAC53
Gln Q2.5%
CAA94
CAG1
Asn N3.7%
AAU64
AAC76
Lys K2.2%
AAA77
AAG5
Asp D1.9%
GAU41
GAC30
Glu E2.6%
GAA82
GAG17
Cys C0.6%
UGU10
UGC13
Trp W3.2%
UGA104
UGG17
Arg R1.9%
CGU7
CGC4
CGA55
CGG6
Gly G6.2%
GGU59
GGC36
GGA102
GGG38
Stop 0.2%
UAA6
UAG1
AGA0
AGG0
Genome map
38 annotated features in NC_042791.1Hover, 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 (38.1%, 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 | 72 | 72 bp | + | – |
| 12S rRNA | Ribosomal RNA | 73 | 1,009 | 937 bp | + | 40.6% |
| tRNA-Val | Transfer RNA | 1,010 | 1,082 | 73 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,083 | 2,778 | 1,696 bp | + | 37.9% |
| tRNA-Leu (UUR) | Transfer RNA | 2,779 | 2,852 | 74 bp | + | – |
| ND1 | Protein-coding gene | 2,853 | 3,827 | 975 bp | + | 37.3% |
| tRNA-Ile | Transfer RNA | 3,828 | 3,901 | 74 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,899 | 3,971 | 73 bp | − | – |
| tRNA-Met | Transfer RNA | 3,972 | 4,041 | 70 bp | + | – |
| ND2 | Protein-coding gene | 4,042 | 5,080 | 1,039 bp | + | 37.5% |
| tRNA-Trp | Transfer RNA | 5,081 | 5,151 | 71 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,151 | 5,222 | 72 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,223 | 5,295 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,328 | 5,397 | 70 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,397 | 5,463 | 67 bp | − | – |
| COX1 | Protein-coding gene | 5,465 | 7,018 | 1,554 bp | + | 40.0% |
| tRNA-Ser (UCN) | Transfer RNA | 7,021 | 7,089 | 69 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,105 | 7,172 | 68 bp | + | – |
| COX2 | Protein-coding gene | 7,177 | 7,867 | 691 bp | + | 37.9% |
| tRNA-Lys | Transfer RNA | 7,868 | 7,943 | 76 bp | + | – |
| ATP8 | Protein-coding gene | 7,944 | 8,111 | 168 bp | + | 31.0% |
| ATP6 | Protein-coding gene | 8,102 | 8,785 | 684 bp | + | 36.3% |
| COX3 | Protein-coding gene | 8,785 | 9,568 | 784 bp | + | 40.1% |
| tRNA-Gly | Transfer RNA | 9,568 | 9,639 | 72 bp | + | – |
| ND3 | Protein-coding gene | 9,639 | 9,987 | 349 bp | + | 37.3% |
| tRNA-Arg | Transfer RNA | 9,988 | 10,056 | 69 bp | + | – |
| ND4L | Protein-coding gene | 10,057 | 10,353 | 297 bp | + | 41.1% |
| ND4 | Protein-coding gene | 10,347 | 11,727 | 1,381 bp | + | 37.8% |
| tRNA-His | Transfer RNA | 11,728 | 11,796 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,796 | 11,865 | 70 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,867 | 11,939 | 73 bp | + | – |
| ND5 | Protein-coding gene | 11,940 | 13,775 | 1,836 bp | + | 35.0% |
| ND6 | Protein-coding gene | 13,772 | 14,293 | 522 bp | − | 38.9% |
| tRNA-Glu | Transfer RNA | 14,294 | 14,362 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,367 | 15,507 | 1,141 bp | + | 39.7% |
| tRNA-Thr | Transfer RNA | 15,508 | 15,580 | 73 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,579 | 15,648 | 70 bp | − | – |
| D-loop | Control region | 15,649 | 16,529 | 881 bp | – | 33.3% |