MitoAge

Choloepus didactylus

Southern two-toed sloth

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Maximum lifespan
36.8 yr
AnAge record
mtDNA size
16,543 bp
RefSeq NC_006924.1
GC content
43.27%
Whole genome
Non-coding
1,140 bp
D-loop 1,083 bp

Where Southern two-toed sloth sits among 2,335 species

Whole-genome GC content against maximum lifespan. Southern two-toed sloth has the 304th longest lifespan of them.

10203040501 yr10 yr100 yrMaximum lifespan, log scaleGC %Southern two-toed sloth
  • This species
  • Other mammals
  • Other classes
Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,543 bp
GC skew (G − C) / (G + C)
−0.383
AT skew (A − T) / (A + T)
+0.154

Life history

Maximum lifespan
36.8 years
Adult weight
6.3 kg
Birth weight
356 g
Female sexual maturity
3.5 years
Male sexual maturity
4.5 years
Gestation or incubation
279 days
Litter or clutch size
1
Litters per year
1
Postnatal growth rate
0.002 per day

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 02657)

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 RefSeq
Whole genome16,543 bp
Protein-coding11,341 bp
12S rRNA964 bp
16S rRNA1,583 bp
All tRNA1,520 bp
D-loop1,083 bp

Genes and regions

Select a column to sort; select a gene to compare it across species
Composition
ND1NADH dehydrogenase subunit 1957 bp31.0%25.3%11.0%32.7%43.68%−0.498+0.102
ND2NADH dehydrogenase subunit 21,044 bp37.3%22.4%7.8%32.6%40.33%−0.615+0.249
COX1Cytochrome c oxidase subunit I1,542 bp27.8%27.8%17.1%27.4%44.49%−0.2330.000
COX2Cytochrome c oxidase subunit II684 bp33.0%24.1%13.5%29.4%42.84%−0.372+0.156
ATP8ATP synthase F0 subunit 8192 bp38.5%20.8%6.8%33.9%40.63%−0.667+0.298
ATP6ATP synthase F0 subunit 6681 bp30.8%25.1%12.0%32.0%44.05%−0.453+0.102
COX3Cytochrome c oxidase subunit III784 bp28.4%26.9%15.2%29.5%44.64%−0.320+0.028
ND3NADH dehydrogenase subunit 3346 bp30.1%26.6%11.3%32.1%43.35%−0.480+0.061
ND4LNADH dehydrogenase subunit 4L297 bp27.9%28.3%12.8%31.0%43.77%−0.415−0.006
ND4NADH dehydrogenase subunit 41,378 bp32.4%23.8%10.2%33.6%43.83%−0.533+0.152
ND5NADH dehydrogenase subunit 51,824 bp32.0%24.2%11.0%32.8%43.81%−0.499+0.138
ND6NADH dehydrogenase subunit 6528 bp42.4%15.2%7.0%35.4%42.42%−0.670+0.474
CYTBCytochrome b1,140 bp32.3%23.8%11.6%32.4%43.95%−0.473+0.152
12S rRNA12S ribosomal RNA964 bp36.2%19.6%17.1%27.1%44.19%−0.225+0.297
16S rRNA16S ribosomal RNA1,583 bp35.2%20.1%17.2%27.4%44.59%−0.228+0.274
D-loopControl region (D-loop)1,083 bp29.0%27.1%17.5%26.5%43.95%−0.206+0.035

Codon usage

Counts per codon, darker is more frequent

3,798 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.8%
UUU81
UUC139
Leu L16.4%
UUA73
UUG16
CUU51
CUC142
CUA296
CUG46
Ile I8.5%
AUU123
AUC198
Met M6.1%
AUA185
AUG48
Val V4.3%
GUU25
GUC24
GUA88
GUG25
Ser S7.3%
UCU27
UCC83
UCA104
UCG13
AGU14
AGC36
Pro P5.6%
CCU29
CCC70
CCA106
CCG7
Thr T9.7%
ACU44
ACC160
ACA148
ACG17
Ala A6.1%
GCU29
GCC108
GCA85
GCG11
Tyr Y3.1%
UAU39
UAC80
His H2.8%
CAU21
CAC86
Gln Q2.3%
CAA82
CAG5
Asn N4.2%
AAU32
AAC127
Lys K2.4%
AAA86
AAG6
Asp D1.7%
GAU21
GAC42
Glu E2.4%
GAA72
GAG18
Cys C0.7%
UGU7
UGC21
Trp W2.7%
UGA90
UGG13
Arg R1.8%
CGU4
CGC26
CGA36
CGG1
Gly G5.8%
GGU27
GGC71
GGA103
GGG21
Stop 0.3%
UAA6
UAG3
AGA0
AGG1

Genome map

38 annotated features in NC_006924.1

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 (43.3%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 38 features as a table
FeatureTypeStartEndLengthStrandGC
tRNA-PheTransfer RNA17070 bp+–
12S rRNARibosomal RNA711,034964 bp+44.2%
tRNA-ValTransfer RNA1,0341,10168 bp+–
16S rRNARibosomal RNA1,1022,6841,583 bp+44.6%
tRNA-Leu (UUR)Transfer RNA2,6852,76076 bp+–
ND1Protein-coding gene2,7643,720957 bp+43.7%
tRNA-IleTransfer RNA3,7203,78869 bp+–
tRNA-GlnTransfer RNA3,7863,85873 bp−–
tRNA-MetTransfer RNA3,8613,92969 bp+–
ND2Protein-coding gene3,9304,9731,044 bp+40.3%
tRNA-TrpTransfer RNA4,9725,03968 bp+–
tRNA-AlaTransfer RNA5,0425,11069 bp−–
tRNA-AsnTransfer RNA5,1125,18473 bp−–
tRNA-CysTransfer RNA5,2165,28368 bp−–
tRNA-TyrTransfer RNA5,2855,35167 bp−–
COX1Protein-coding gene5,3536,8941,542 bp+44.5%
tRNA-Ser (UCN)Transfer RNA6,8976,96569 bp−–
tRNA-AspTransfer RNA6,9737,04169 bp+–
COX2Protein-coding gene7,0427,725684 bp+42.8%
tRNA-LysTransfer RNA7,7287,79871 bp+–
ATP8Protein-coding gene7,7987,989192 bp+40.6%
ATP6Protein-coding gene7,9598,639681 bp+44.1%
COX3Protein-coding gene8,6399,422784 bp+44.6%
tRNA-GlyTransfer RNA9,4239,49270 bp+–
ND3Protein-coding gene9,4939,838346 bp+43.4%
tRNA-ArgTransfer RNA9,8409,90869 bp+–
ND4LProtein-coding gene9,90910,205297 bp+43.8%
ND4Protein-coding gene10,19911,5761,378 bp+43.8%
tRNA-HisTransfer RNA11,57711,64569 bp+–
tRNA-Ser (AGY)Transfer RNA11,64611,70560 bp+–
tRNA-Leu (CUN)Transfer RNA11,70511,77470 bp+–
ND5Protein-coding gene11,77513,5981,824 bp+43.8%
ND6Protein-coding gene13,58214,109528 bp−42.4%
tRNA-GluTransfer RNA14,11014,17869 bp−–
CYTBProtein-coding gene14,18115,3201,140 bp+44.0%
tRNA-ThrTransfer RNA15,32115,38868 bp+–
tRNA-ProTransfer RNA15,39115,46070 bp−–
D-loopControl region15,46116,5431,083 bp–44.0%

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