Terrapene carolina

Eastern box turtle

Maximum lifespan

138 yr

AnAge record

mtDNA size

16,901 bp

RefSeq NC_069631.1

GC content

38.97%

Whole genome

Non-coding

1,410 bp

D-loop 1,187 bp

Where Eastern box turtle sits among 2,335 species

Whole-genome GC content against maximum lifespan. Eastern box turtle has the 12th longest lifespan of them.

This species
Other reptiles
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,901 bp

GC skew (G − C) / (G + C): −0.358
AT skew (A − T) / (A + T): +0.139

Life history

Maximum lifespan: 138 years
Adult weight: 372 g
Female sexual maturity: 6 years
Male sexual maturity: 6 years

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 03710)

About this record

Lifespan source: AnAge build 15
Based on: an animal in the wild
Data quality: acceptable, medium sample
Licence: Free to use, subject to the Human Ageing Genomic Resources conditions of use
Status: New in build 2
In the database since: 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 genome16,901 bp

Protein-coding11,373 bp

12S rRNA967 bp

16S rRNA1,612 bp

All tRNA1,550 bp

D-loop1,187 bp

Genes and regions

Select a column to sort; select a gene to compare it across species

Base composition of Terrapene carolina genes

ND1NADH dehydrogenase subunit 1	971 bp	32.2%	28.0%	11.0%	28.7%	39.75%	−0.446	+0.070
ND2NADH dehydrogenase subunit 2	1,039 bp	37.3%	25.4%	8.1%	29.2%	37.25%	−0.566	+0.190
COX1Cytochrome c oxidase subunit I	1,548 bp	29.2%	29.7%	16.7%	24.4%	41.09%	−0.186	−0.009
COX2Cytochrome c oxidase subunit II	687 bp	35.2%	27.4%	13.1%	24.3%	37.41%	−0.300	+0.126
ATP8ATP synthase F0 subunit 8	189 bp	40.7%	26.5%	6.3%	26.5%	32.80%	−0.613	+0.213
ATP6ATP synthase F0 subunit 6	684 bp	35.5%	26.0%	8.8%	29.7%	38.45%	−0.544	+0.154
COX3Cytochrome c oxidase subunit III	784 bp	30.9%	26.4%	15.1%	27.7%	42.73%	−0.296	+0.078
ND3NADH dehydrogenase subunit 3	349 bp	30.7%	26.6%	12.6%	30.1%	42.69%	−0.409	+0.070
ND4LNADH dehydrogenase subunit 4L	297 bp	31.3%	28.3%	9.4%	31.0%	40.40%	−0.533	+0.051
ND4NADH dehydrogenase subunit 4	1,381 bp	35.3%	26.5%	10.1%	28.2%	38.23%	−0.473	+0.142
ND5NADH dehydrogenase subunit 5	1,818 bp	34.4%	27.0%	10.2%	28.4%	38.61%	−0.470	+0.122
ND6NADH dehydrogenase subunit 6	525 bp	46.1%	12.0%	7.2%	34.7%	41.91%	−0.655	+0.587
CYTBCytochrome b	1,140 bp	31.7%	25.8%	11.7%	30.9%	42.54%	−0.452	+0.102
12S rRNA12S ribosomal RNA	967 bp	37.2%	21.7%	16.4%	24.6%	41.06%	−0.199	+0.263
16S rRNA16S ribosomal RNA	1,612 bp	39.6%	22.2%	16.3%	21.9%	38.15%	−0.148	+0.282
D-loopControl region (D-loop)	1,187 bp	32.3%	35.4%	14.0%	18.4%	32.35%	−0.135	−0.046

Codon usage

Counts per codon, darker is more frequent

Gene

3,802 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.7%

UUU92

UUC125

Leu L16.4%

UUA151

UUG21

CUU60

CUC75

CUA293

CUG22

Ile I7.9%

AUU139

AUC163

Met M6.3%

AUA209

AUG32

Val V4.3%

GUU32

GUC26

GUA86

GUG21

Ser S7.2%

UCU38

UCC58

UCA128

UCG3

AGU15

AGC30

Pro P5.7%

CCU34

CCC39

CCA138

CCG6

Thr T9.3%

ACU70

ACC110

ACA168

ACG5

Ala A6.6%

GCU56

GCC105

GCA84

GCG5

Tyr Y3.5%

UAU50

UAC83

His H2.7%

CAU30

CAC73

Gln Q2.8%

CAA100

CAG6

Asn N3.8%

AAU49

AAC95

Lys K2.5%

AAA92

AAG2

Asp D1.6%

GAU21

GAC40

Glu E2.3%

GAA79

GAG9

Cys C0.7%

UGU12

UGC15

Trp W2.9%

UGA94

UGG15

Arg R1.7%

CGU8

CGC9

CGA47

CGG1

Gly G5.9%

GGU39

GGC54

GGA102

GGG30

Stop 0.2%

UAA6

UAG0

AGA0

AGG2

Genome map

38 annotated features in NC_069631.1

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 (39.0%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Terrapene carolina (NC_069631.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	70	70 bp	+	–
12S rRNA	Ribosomal RNA	71	1,037	967 bp	+	41.1%
tRNA-Val	Transfer RNA	1,037	1,104	68 bp	+	–
16S rRNA	Ribosomal RNA	1,104	2,715	1,612 bp	+	38.2%
tRNA-Leu (UUR)	Transfer RNA	2,717	2,791	75 bp	+	–
ND1	Protein-coding gene	2,792	3,762	971 bp	+	39.8%
tRNA-Ile	Transfer RNA	3,763	3,833	71 bp	+	–
tRNA-Gln	Transfer RNA	3,833	3,904	72 bp	−	–
tRNA-Met	Transfer RNA	3,904	3,972	69 bp	+	–
ND2	Protein-coding gene	3,973	5,011	1,039 bp	+	37.3%
tRNA-Trp	Transfer RNA	5,012	5,086	75 bp	+	–
tRNA-Ala	Transfer RNA	5,088	5,156	69 bp	−	–
tRNA-Asn	Transfer RNA	5,158	5,230	73 bp	−	–
tRNA-Cys	Transfer RNA	5,260	5,325	66 bp	−	–
tRNA-Tyr	Transfer RNA	5,326	5,397	72 bp	−	–
COX1	Protein-coding gene	5,399	6,946	1,548 bp	+	41.1%
tRNA-Ser (UCN)	Transfer RNA	6,938	7,008	71 bp	−	–
tRNA-Asp	Transfer RNA	7,011	7,080	70 bp	+	–
COX2	Protein-coding gene	7,081	7,767	687 bp	+	37.4%
tRNA-Lys	Transfer RNA	7,769	7,841	73 bp	+	–
ATP8	Protein-coding gene	7,843	8,031	189 bp	+	32.8%
ATP6	Protein-coding gene	8,001	8,684	684 bp	+	38.5%
COX3	Protein-coding gene	8,684	9,467	784 bp	+	42.7%
tRNA-Gly	Transfer RNA	9,468	9,535	68 bp	+	–
ND3	Protein-coding gene	9,536	9,885	350 bp	+	42.7%
tRNA-Arg	Transfer RNA	9,886	9,956	71 bp	+	–
ND4L	Protein-coding gene	9,957	10,253	297 bp	+	40.4%
ND4	Protein-coding gene	10,247	11,627	1,381 bp	+	38.2%
tRNA-His	Transfer RNA	11,628	11,697	70 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,698	11,763	66 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,763	11,835	73 bp	+	–
ND5	Protein-coding gene	11,836	13,653	1,818 bp	+	38.6%
ND6	Protein-coding gene	13,904	14,428	525 bp	−	41.9%
tRNA-Glu	Transfer RNA	14,429	14,496	68 bp	−	–
CYTB	Protein-coding gene	14,498	15,637	1,140 bp	+	42.5%
tRNA-Thr	Transfer RNA	15,641	15,712	72 bp	+	–
tRNA-Pro	Transfer RNA	15,714	15,784	71 bp	−	–
D-loop	Control region	15,715	16,901	1,187 bp	–	32.4%