MitoAge

Macrochelys temminckii

Alligator snapping turtle

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Maximum lifespan
70.3 yr
AnAge record
mtDNA size
16,569 bp
RefSeq NC_009260.1
GC content
37.91%
Whole genome
Non-coding
1,133 bp
D-loop 1,063 bp

Where Alligator snapping turtle sits among 2,335 species

Whole-genome GC content against maximum lifespan. Alligator snapping turtle has the 63rd longest lifespan of them.

10203040501 yr10 yr100 yrMaximum lifespan, log scaleGC %Alligator snapping turtle
  • This species
  • Other reptiles
  • Other classes
Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,569 bp
GC skew (G − C) / (G + C)
−0.332
AT skew (A − T) / (A + T)
+0.117

Life history

Maximum lifespan
70.3 years
Adult weight
58.5 kg
Female sexual maturity
11 years
Male sexual maturity
11 years
Gestation or incubation
120 days
Litter or clutch size
30

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 03688)

About this record

Lifespan source
AnAge build 15
Based on
an animal in captivity
Data quality
acceptable, small 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 genome16,569 bp
Protein-coding11,331 bp
12S rRNA966 bp
16S rRNA1,604 bp
All tRNA1,544 bp
D-loop1,063 bp

Genes and regions

Select a column to sort; select a gene to compare it across species
Composition
ND1NADH dehydrogenase subunit 1971 bp32.9%29.6%10.8%26.8%37.59%−0.425+0.053
ND2NADH dehydrogenase subunit 21,039 bp36.5%25.9%9.0%28.6%37.63%−0.519+0.170
COX1Cytochrome c oxidase subunit I1,548 bp29.8%30.6%16.5%23.1%39.66%−0.166−0.013
COX2Cytochrome c oxidase subunit II687 bp35.7%28.2%13.1%23.0%36.10%−0.274+0.116
ATP8ATP synthase F0 subunit 8165 bp39.4%26.1%6.1%28.5%34.55%−0.649+0.204
ATP6ATP synthase F0 subunit 6696 bp35.2%28.0%9.6%27.2%36.78%−0.477+0.114
COX3Cytochrome c oxidase subunit III757 bp30.3%28.5%14.9%26.3%41.22%−0.276+0.029
ND3NADH dehydrogenase subunit 3349 bp32.7%30.7%11.2%25.5%36.68%−0.391+0.032
ND4LNADH dehydrogenase subunit 4L297 bp27.6%34.0%11.4%26.9%38.38%−0.404−0.104
ND4NADH dehydrogenase subunit 41,381 bp35.1%27.7%10.6%26.6%37.22%−0.432+0.119
ND5NADH dehydrogenase subunit 51,800 bp34.9%27.5%10.3%27.3%37.61%−0.453+0.118
ND6NADH dehydrogenase subunit 6531 bp47.8%13.4%8.1%30.7%38.80%−0.583+0.563
CYTBCytochrome b1,144 bp32.0%26.3%11.5%30.2%41.70%−0.451+0.097
12S rRNA12S ribosomal RNA966 bp35.9%23.1%17.3%23.7%40.99%−0.157+0.218
16S rRNA16S ribosomal RNA1,604 bp39.0%23.9%15.8%21.3%37.10%−0.146+0.241
D-loopControl region (D-loop)1,063 bp33.7%35.3%11.8%19.3%31.04%−0.242−0.023

Codon usage

Counts per codon, darker is more frequent

3,786 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.9%
UUU107
UUC116
Leu L16.1%
UUA178
UUG21
CUU71
CUC70
CUA254
CUG17
Ile I7.8%
AUU154
AUC140
Met M7.2%
AUA239
AUG32
Val V4.4%
GUU37
GUC20
GUA94
GUG16
Ser S7.2%
UCU42
UCC45
UCA129
UCG4
AGU13
AGC40
Pro P5.5%
CCU29
CCC31
CCA137
CCG10
Thr T9.1%
ACU70
ACC119
ACA152
ACG5
Ala A6.6%
GCU63
GCC94
GCA87
GCG5
Tyr Y3.5%
UAU66
UAC66
His H2.5%
CAU34
CAC62
Gln Q2.8%
CAA98
CAG9
Asn N3.5%
AAU45
AAC87
Lys K2.4%
AAA85
AAG5
Asp D1.7%
GAU25
GAC41
Glu E2.3%
GAA81
GAG7
Cys C0.9%
UGU18
UGC17
Trp W2.9%
UGA99
UGG10
Arg R1.9%
CGU8
CGC5
CGA57
CGG1
Gly G5.6%
GGU40
GGC58
GGA89
GGG25
Stop 0.2%
UAA5
UAG0
AGA0
AGG2

Genome map

38 annotated features in NC_009260.1

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 (37.9%, 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 RNA711,036966 bp+41.0%
tRNA-ValTransfer RNA1,0371,10872 bp+–
16S rRNARibosomal RNA1,1092,7121,604 bp+37.1%
tRNA-Leu (UUR)Transfer RNA2,7132,78775 bp+–
ND1Protein-coding gene2,7883,758971 bp+37.6%
tRNA-IleTransfer RNA3,7593,83173 bp+–
tRNA-GlnTransfer RNA3,8313,90171 bp−–
tRNA-MetTransfer RNA3,9013,96969 bp+–
ND2Protein-coding gene3,9705,0081,039 bp+37.6%
tRNA-TrpTransfer RNA5,0095,08072 bp+–
tRNA-AlaTransfer RNA5,0825,15069 bp−–
tRNA-AsnTransfer RNA5,1525,22372 bp−–
tRNA-CysTransfer RNA5,2515,31666 bp−–
tRNA-TyrTransfer RNA5,3215,39070 bp−–
COX1Protein-coding gene5,3926,9391,548 bp+39.7%
tRNA-Ser (UCN)Transfer RNA6,9317,00171 bp−–
tRNA-AspTransfer RNA7,0047,07168 bp+–
COX2Protein-coding gene7,0727,758687 bp+36.1%
tRNA-LysTransfer RNA7,7607,83273 bp+–
ATP8Protein-coding gene7,8347,998165 bp+34.6%
ATP6Protein-coding gene7,9778,672696 bp+36.8%
COX3Protein-coding gene8,6999,455757 bp+41.2%
tRNA-GlyTransfer RNA9,4569,52368 bp+–
ND3Protein-coding gene9,5249,873350 bp+36.7%
tRNA-ArgTransfer RNA9,8749,94269 bp+–
ND4LProtein-coding gene9,94310,239297 bp+38.4%
ND4Protein-coding gene10,23311,6131,381 bp+37.2%
tRNA-HisTransfer RNA11,61411,68370 bp+–
tRNA-Ser (AGY)Transfer RNA11,68311,75068 bp+–
tRNA-Leu (CUN)Transfer RNA11,75011,82172 bp+–
ND5Protein-coding gene11,82213,6211,800 bp+37.6%
ND6Protein-coding gene13,61714,147531 bp−38.8%
tRNA-GluTransfer RNA14,14814,21568 bp−–
CYTBProtein-coding gene14,22015,3631,144 bp+41.7%
tRNA-ThrTransfer RNA15,36415,43572 bp+–
tRNA-ProTransfer RNA15,43715,50670 bp−–
D-loopControl region15,50716,5691,063 bp–31.0%

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