MitoAge

Enhydra lutris

Sea otter

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Maximum lifespan
27 yr
AnAge record
mtDNA size
16,431 bp
RefSeq NC_009692.1
GC content
41.11%
Whole genome
Non-coding
1,044 bp
D-loop 984 bp

Where Sea otter sits among 2,335 species

Whole-genome GC content against maximum lifespan. Sea otter has the 551st longest lifespan of them.

10203040501 yr10 yr100 yrMaximum lifespan, log scaleGC %Sea otter
  • This species
  • Other mammals
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Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,431 bp
GC skew (G − C) / (G + C)
−0.308
AT skew (A − T) / (A + T)
+0.104

Life history

Maximum lifespan
27 years
Adult weight
25.9 kg
Birth weight
1.9 kg
Basal metabolic rate
98.479 W
Body temperature
37.5 °C
Female sexual maturity
2.7 years
Male sexual maturity
3.7 years
Gestation or incubation
140 days
Litter or clutch size
1
Litters per year
0.8

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 02171)

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
Unchanged since build 1
In the database since
build 1 (2015-07-01)

Every change against the 2015 build is in the changelog download.

Composition by region

Reference (L) strand as deposited in RefSeq
Whole genome16,431 bp
Protein-coding11,354 bp
12S rRNA963 bp
16S rRNA1,571 bp
All tRNA1,513 bp
D-loop984 bp

Genes and regions

Select a column to sort; select a gene to compare it across species
Composition
ND1NADH dehydrogenase subunit 1955 bp30.2%25.8%12.8%31.3%44.08%−0.420+0.079
ND2NADH dehydrogenase subunit 21,042 bp35.9%25.0%10.6%28.5%39.06%−0.459+0.178
COX1Cytochrome c oxidase subunit I1,545 bp28.4%30.0%17.5%24.1%41.62%−0.160−0.027
COX2Cytochrome c oxidase subunit II684 bp31.7%25.0%14.6%28.7%43.28%−0.324+0.119
ATP8ATP synthase F0 subunit 8201 bp35.8%27.9%10.0%26.4%36.32%−0.452+0.125
ATP6ATP synthase F0 subunit 6681 bp30.8%29.1%11.6%28.5%40.09%−0.421+0.029
COX3Cytochrome c oxidase subunit III784 bp26.8%28.2%16.3%28.7%45.03%−0.275−0.026
ND3NADH dehydrogenase subunit 3348 bp33.3%27.0%12.9%26.7%39.66%−0.348+0.105
ND4LNADH dehydrogenase subunit 4L297 bp30.0%31.0%12.1%26.9%39.06%−0.379−0.017
ND4NADH dehydrogenase subunit 41,378 bp32.2%26.0%11.4%30.4%41.80%−0.455+0.107
ND5NADH dehydrogenase subunit 51,830 bp33.4%26.4%10.8%29.3%40.16%−0.461+0.118
ND6NADH dehydrogenase subunit 6534 bp41.4%20.4%10.1%28.1%38.20%−0.471+0.339
CYTBCytochrome b1,140 bp29.3%26.6%13.7%30.4%44.12%−0.380+0.049
12S rRNA12S ribosomal RNA963 bp36.6%23.3%18.0%22.2%40.19%−0.106+0.222
16S rRNA16S ribosomal RNA1,571 bp36.2%23.7%17.9%22.3%40.17%−0.109+0.209
D-loopControl region (D-loop)984 bp27.7%26.9%16.7%28.7%45.33%−0.265+0.015

Codon usage

Counts per codon, darker is more frequent

3,805 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.0%
UUU87
UUC143
Leu L16.0%
UUA98
UUG22
CUU51
CUC89
CUA297
CUG52
Ile I8.5%
AUU128
AUC195
Met M6.5%
AUA186
AUG62
Val V5.1%
GUU33
GUC43
GUA98
GUG19
Ser S7.4%
UCU41
UCC72
UCA102
UCG11
AGU16
AGC38
Pro P5.1%
CCU47
CCC67
CCA75
CCG5
Thr T8.4%
ACU63
ACC109
ACA134
ACG14
Ala A6.7%
GCU46
GCC103
GCA94
GCG11
Tyr Y3.5%
UAU53
UAC79
His H2.6%
CAU32
CAC66
Gln Q2.3%
CAA78
CAG10
Asn N4.1%
AAU41
AAC115
Lys K2.6%
AAA89
AAG10
Asp D1.8%
GAU24
GAC45
Glu E2.5%
GAA80
GAG15
Cys C0.6%
UGU9
UGC15
Trp W2.8%
UGA90
UGG15
Arg R1.7%
CGU9
CGC12
CGA37
CGG6
Gly G5.7%
GGU35
GGC49
GGA102
GGG29
Stop 0.2%
UAA7
UAG1
AGA1
AGG0

Genome map

38 annotated features in NC_009692.1

Hover, 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 (41.1%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 38 features as a table
FeatureTypeStartEndLengthStrandGC
tRNA-PheTransfer RNA16868 bp+–
12S rRNARibosomal RNA691,031963 bp+40.2%
tRNA-ValTransfer RNA1,0321,09968 bp+–
16S rRNARibosomal RNA1,0992,6691,571 bp+40.2%
tRNA-Leu (UUR)Transfer RNA2,6712,74575 bp+–
ND1Protein-coding gene2,7483,702955 bp+44.1%
tRNA-IleTransfer RNA3,7033,77270 bp+–
tRNA-GlnTransfer RNA3,7703,84374 bp−–
tRNA-MetTransfer RNA3,8453,91369 bp+–
ND2Protein-coding gene3,9144,9551,042 bp+39.1%
tRNA-TrpTransfer RNA4,9565,02267 bp+–
tRNA-AlaTransfer RNA5,0325,10069 bp−–
tRNA-AsnTransfer RNA5,1025,17473 bp−–
tRNA-CysTransfer RNA5,2085,27467 bp−–
tRNA-TyrTransfer RNA5,2745,34269 bp−–
COX1Protein-coding gene5,3446,8881,545 bp+41.6%
tRNA-Ser (AGY)Transfer RNA6,8856,95672 bp−–
tRNA-AspTransfer RNA6,9617,02868 bp+–
COX2Protein-coding gene7,0297,712684 bp+43.3%
tRNA-LysTransfer RNA7,7167,78267 bp+–
ATP8Protein-coding gene7,7847,984201 bp+36.3%
ATP6Protein-coding gene7,9458,625681 bp+40.1%
COX3Protein-coding gene8,6259,408784 bp+45.0%
tRNA-GlyTransfer RNA9,4099,47870 bp+–
ND3Protein-coding gene9,4799,826348 bp+39.7%
tRNA-ArgTransfer RNA9,8279,89468 bp+–
ND4LProtein-coding gene9,89510,191297 bp+39.1%
ND4Protein-coding gene10,18511,5621,378 bp+41.8%
tRNA-HisTransfer RNA11,56311,63169 bp+–
tRNA-Ser (UCN)Transfer RNA11,63211,69362 bp+–
tRNA-Leu (CUN)Transfer RNA11,69411,76370 bp+–
ND5Protein-coding gene11,75513,5841,830 bp+40.2%
ND6Protein-coding gene13,56814,101534 bp−38.2%
tRNA-GluTransfer RNA14,10214,17069 bp−–
CYTBProtein-coding gene14,17515,3141,140 bp+44.1%
tRNA-ThrTransfer RNA15,31515,38268 bp+–
tRNA-ProTransfer RNA15,38315,44765 bp−–
D-loopControl region15,44816,431984 bp–45.3%

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