Lutra lutra
European otter
GC content
41.90%
Whole genome
Non-coding
1,151 bp
D-loop 1,090 bp
Where European otter sits among 2,335 species
Whole-genome GC content against maximum lifespan. European otter has the 1,026th longest lifespan of them.
- This species
- Other mammals
- Other classes
Base composition
Whole genome16,536 bp
- GC skew (G − C) / (G + C)
- −0.312
- AT skew (A − T) / (A + T)
- +0.111
Life history
- Maximum lifespan
- 18.2 years
- Adult weight
- 6.8 kg
- Birth weight
- 110.5 g
- Basal metabolic rate
- 25.104 W
- Body temperature
- 38.1 °C
- Female sexual maturity
- 548 days
- Male sexual maturity
- 548 days
- Gestation or incubation
- 61 days
- Litter or clutch size
- 2
- Litters per year
- 1
Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 02180)
About this record
- Lifespan source
- AnAge build 15
- Based on
- an animal in captivity
- Data quality
- acceptable, medium sample
- Licence
- Free to use, subject to the Human Ageing Genomic Resources conditions of use
- Status
- Updated in build 2
- In the database since
- build 1 (2015-07-01)
- Last changed
- build 2 (2026-11-13)
Every change against the 2015 build is in the changelog download.
Composition by region
Reference (L) strand as deposited in RefSeqWhole genome16,536 bp
Protein-coding11,346 bp
12S rRNA964 bp
16S rRNA1,568 bp
All tRNA1,510 bp
D-loop1,090 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 956 bp | 44.14% | −0.408 | +0.105 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,042 bp | 40.12% | −0.502 | +0.179 | |||||
| COX1Cytochrome c oxidase subunit I | 1,545 bp | 43.88% | −0.153 | −0.029 | |||||
| COX2Cytochrome c oxidase subunit II | 684 bp | 43.28% | −0.291 | +0.108 | |||||
| ATP8ATP synthase F0 subunit 8 | 201 bp | 35.32% | −0.549 | +0.154 | |||||
| ATP6ATP synthase F0 subunit 6 | 681 bp | 41.26% | −0.409 | +0.015 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 45.28% | −0.335 | −0.007 | |||||
| ND3NADH dehydrogenase subunit 3 | 348 bp | 40.23% | −0.386 | +0.087 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 40.07% | −0.328 | −0.056 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,378 bp | 41.80% | −0.441 | +0.112 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,821 bp | 42.67% | −0.413 | +0.094 | |||||
| ND6NADH dehydrogenase subunit 6 | 534 bp | 40.08% | −0.477 | +0.375 | |||||
| CYTBCytochrome b | 1,140 bp | 44.30% | −0.394 | +0.074 | |||||
| 12S rRNA12S ribosomal RNA | 964 bp | 39.94% | −0.101 | +0.230 | |||||
| 16S rRNA16S ribosomal RNA | 1,568 bp | 39.41% | −0.107 | +0.213 | |||||
| D-loopControl region (D-loop) | 1,090 bp | 46.24% | −0.325 | +0.072 |
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%
UUU87
UUC138
Leu L16.3%
UUA92
UUG18
CUU62
CUC97
CUA287
CUG64
Ile I8.4%
AUU135
AUC184
Met M6.4%
AUA178
AUG65
Val V5.1%
GUU36
GUC41
GUA94
GUG22
Ser S7.2%
UCU25
UCC83
UCA96
UCG16
AGU20
AGC34
Pro P5.2%
CCU38
CCC73
CCA78
CCG9
Thr T8.6%
ACU60
ACC113
ACA123
ACG30
Ala A6.6%
GCU42
GCC110
GCA84
GCG15
Tyr Y3.5%
UAU40
UAC94
His H2.6%
CAU29
CAC68
Gln Q2.3%
CAA74
CAG13
Asn N4.0%
AAU43
AAC109
Lys K2.7%
AAA94
AAG8
Asp D1.8%
GAU25
GAC44
Glu E2.5%
GAA75
GAG20
Cys C0.6%
UGU3
UGC20
Trp W2.8%
UGA89
UGG16
Arg R1.7%
CGU6
CGC16
CGA37
CGG5
Gly G5.7%
GGU34
GGC56
GGA93
GGG33
Stop 0.2%
UAA8
UAG0
AGA1
AGG0
Genome map
38 annotated features in NC_062277.1Hover, 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 (41.9%, 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 | 1,033 | 964 bp | + | 39.9% |
| tRNA-Val | Transfer RNA | 1,034 | 1,101 | 68 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,102 | 2,669 | 1,568 bp | + | 39.4% |
| tRNA-Leu (UUR) | Transfer RNA | 2,670 | 2,744 | 75 bp | + | – |
| ND1 | Protein-coding gene | 2,747 | 3,702 | 956 bp | + | 44.1% |
| tRNA-Ile | Transfer RNA | 3,703 | 3,771 | 69 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,769 | 3,842 | 74 bp | − | – |
| tRNA-Met | Transfer RNA | 3,844 | 3,912 | 69 bp | + | – |
| ND2 | Protein-coding gene | 3,913 | 4,954 | 1,042 bp | + | 40.1% |
| tRNA-Trp | Transfer RNA | 4,955 | 5,022 | 68 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,032 | 5,100 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,102 | 5,174 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,208 | 5,274 | 67 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,275 | 5,342 | 68 bp | − | – |
| COX1 | Protein-coding gene | 5,344 | 6,888 | 1,545 bp | + | 43.9% |
| tRNA-Ser (UCN) | Transfer RNA | 6,886 | 6,954 | 69 bp | − | – |
| tRNA-Asp | Transfer RNA | 6,961 | 7,027 | 67 bp | + | – |
| COX2 | Protein-coding gene | 7,028 | 7,711 | 684 bp | + | 43.3% |
| tRNA-Lys | Transfer RNA | 7,715 | 7,780 | 66 bp | + | – |
| ATP8 | Protein-coding gene | 7,782 | 7,982 | 201 bp | + | 35.3% |
| ATP6 | Protein-coding gene | 7,943 | 8,623 | 681 bp | + | 41.3% |
| COX3 | Protein-coding gene | 8,623 | 9,406 | 784 bp | + | 45.3% |
| tRNA-Gly | Transfer RNA | 9,407 | 9,476 | 70 bp | + | – |
| ND3 | Protein-coding gene | 9,477 | 9,824 | 348 bp | + | 40.2% |
| tRNA-Arg | Transfer RNA | 9,825 | 9,892 | 68 bp | + | – |
| ND4L | Protein-coding gene | 9,893 | 10,189 | 297 bp | + | 40.1% |
| ND4 | Protein-coding gene | 10,183 | 11,560 | 1,378 bp | + | 41.8% |
| tRNA-His | Transfer RNA | 11,561 | 11,629 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,630 | 11,691 | 62 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,692 | 11,761 | 70 bp | + | – |
| ND5 | Protein-coding gene | 11,762 | 13,582 | 1,821 bp | + | 42.7% |
| ND6 | Protein-coding gene | 13,566 | 14,099 | 534 bp | − | 40.1% |
| tRNA-Glu | Transfer RNA | 14,100 | 14,168 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,173 | 15,312 | 1,140 bp | + | 44.3% |
| tRNA-Thr | Transfer RNA | 15,313 | 15,380 | 68 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,380 | 15,446 | 67 bp | − | – |
| D-loop | Control region | 15,447 | 16,536 | 1,090 bp | – | 46.2% |