Triakis semifasciata

Leopard shark

Maximum lifespan

30 yr

AnAge record

mtDNA size

16,613 bp

RefSeq NC_077588.1

GC content

38.93%

Whole genome

Non-coding

1,056 bp

D-loop 974 bp

Where Leopard shark sits among 2,335 species

Whole-genome GC content against maximum lifespan. Leopard shark has the 459th longest lifespan of them.

This species
Other sharks and rays
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,613 bp

GC skew (G − C) / (G + C): −0.275
AT skew (A − T) / (A + T): −0.001

Life history

Maximum lifespan: 30 years
Adult weight: 10.1 kg
Female sexual maturity: 13 years
Male sexual maturity: 7 years
Litter or clutch size: 15

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 01787)

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 genome16,613 bp

Protein-coding11,407 bp

12S rRNA953 bp

16S rRNA1,648 bp

All tRNA1,553 bp

D-loop974 bp

Genes and regions

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

Base composition of Triakis semifasciata genes

ND1NADH dehydrogenase subunit 1	975 bp	28.3%	31.3%	13.0%	27.4%	40.41%	−0.355	−0.050
ND2NADH dehydrogenase subunit 2	1,045 bp	30.7%	32.1%	9.8%	27.5%	37.23%	−0.476	−0.021
COX1Cytochrome c oxidase subunit I	1,557 bp	26.7%	33.3%	16.6%	23.4%	40.01%	−0.169	−0.109
COX2Cytochrome c oxidase subunit II	691 bp	32.1%	29.8%	14.5%	23.6%	38.06%	−0.240	+0.037
ATP8ATP synthase F0 subunit 8	168 bp	35.1%	33.3%	8.9%	22.6%	31.55%	−0.434	+0.026
ATP6ATP synthase F0 subunit 6	684 bp	30.1%	34.2%	10.8%	24.9%	35.67%	−0.393	−0.064
COX3Cytochrome c oxidase subunit III	786 bp	27.4%	29.9%	16.4%	26.3%	42.75%	−0.232	−0.044
ND3NADH dehydrogenase subunit 3	349 bp	23.8%	32.1%	15.5%	28.7%	44.13%	−0.299	−0.149
ND4LNADH dehydrogenase subunit 4L	297 bp	23.6%	32.7%	12.8%	31.0%	43.77%	−0.415	−0.162
ND4NADH dehydrogenase subunit 4	1,381 bp	29.4%	32.3%	11.7%	26.6%	38.31%	−0.388	−0.047
ND5NADH dehydrogenase subunit 5	1,830 bp	31.6%	32.0%	10.3%	26.1%	36.39%	−0.435	−0.007
ND6NADH dehydrogenase subunit 6	522 bp	39.8%	19.7%	9.4%	31.0%	40.42%	−0.536	+0.338
CYTBCytochrome b	1,145 bp	26.6%	32.8%	12.8%	27.7%	40.52%	−0.366	−0.104
12S rRNA12S ribosomal RNA	953 bp	32.6%	24.6%	19.8%	23.0%	42.81%	−0.074	+0.141
16S rRNA16S ribosomal RNA	1,648 bp	35.7%	27.2%	17.3%	19.8%	37.14%	−0.069	+0.135
D-loopControl region (D-loop)	974 bp	31.5%	34.5%	14.0%	20.0%	33.98%	−0.178	−0.045

Codon usage

Counts per codon, darker is more frequent

Gene

3,808 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.5%

UUU137

UUC111

Leu L17.1%

UUA205

UUG20

CUU143

CUC107

CUA155

CUG21

Ile I8.8%

AUU220

AUC117

Met M4.4%

AUA139

AUG29

Val V4.8%

GUU59

GUC33

GUA76

GUG15

Ser S6.9%

UCU56

UCC62

UCA87

UCG4

AGU17

AGC38

Pro P5.5%

CCU71

CCC45

CCA92

CCG2

Thr T7.3%

ACU76

ACC81

ACA114

ACG8

Ala A7.5%

GCU82

GCC102

GCA95

GCG6

Tyr Y3.1%

UAU65

UAC54

His H2.8%

CAU50

CAC56

Gln Q2.5%

CAA89

CAG7

Asn N3.9%

AAU66

AAC84

Lys K2.2%

AAA80

AAG4

Asp D1.9%

GAU36

GAC35

Glu E2.7%

GAA87

GAG14

Cys C0.6%

UGU16

UGC7

Trp W3.2%

UGA113

UGG10

Arg R1.9%

CGU16

CGC14

CGA35

CGG8

Gly G6.0%

GGU58

GGC59

GGA77

GGG35

Stop 0.2%

UAA7

UAG0

AGA0

AGG1

Genome map

38 annotated features in NC_077588.1

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 (38.9%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Triakis semifasciata (NC_077588.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	69	69 bp	+	–
12S rRNA	Ribosomal RNA	71	1,023	953 bp	+	42.8%
tRNA-Val	Transfer RNA	1,021	1,092	72 bp	+	–
16S rRNA	Ribosomal RNA	1,116	2,763	1,648 bp	+	37.1%
tRNA-Leu (UUR)	Transfer RNA	2,763	2,837	75 bp	+	–
ND1	Protein-coding gene	2,838	3,812	975 bp	+	40.4%
tRNA-Ile	Transfer RNA	3,813	3,882	70 bp	+	–
tRNA-Gln	Transfer RNA	3,884	3,955	72 bp	−	–
tRNA-Met	Transfer RNA	3,956	4,024	69 bp	+	–
ND2	Protein-coding gene	4,025	5,069	1,045 bp	+	37.2%
tRNA-Trp	Transfer RNA	5,070	5,140	71 bp	+	–
tRNA-Ala	Transfer RNA	5,142	5,210	69 bp	−	–
tRNA-Asn	Transfer RNA	5,211	5,283	73 bp	−	–
tRNA-Cys	Transfer RNA	5,321	5,389	69 bp	−	–
tRNA-Tyr	Transfer RNA	5,391	5,460	70 bp	−	–
COX1	Protein-coding gene	5,462	7,018	1,557 bp	+	40.0%
tRNA-Ser (UCN)	Transfer RNA	7,019	7,089	71 bp	−	–
tRNA-Asp	Transfer RNA	7,093	7,162	70 bp	+	–
COX2	Protein-coding gene	7,170	7,860	691 bp	+	38.1%
tRNA-Lys	Transfer RNA	7,861	7,934	74 bp	+	–
ATP8	Protein-coding gene	7,936	8,103	168 bp	+	31.6%
ATP6	Protein-coding gene	8,094	8,777	684 bp	+	35.7%
COX3	Protein-coding gene	8,777	9,562	786 bp	+	42.8%
tRNA-Gly	Transfer RNA	9,565	9,634	70 bp	+	–
ND3	Protein-coding gene	9,635	9,983	349 bp	+	44.1%
tRNA-Arg	Transfer RNA	9,984	10,053	70 bp	+	–
ND4L	Protein-coding gene	10,054	10,350	297 bp	+	43.8%
ND4	Protein-coding gene	10,344	11,724	1,381 bp	+	38.3%
tRNA-His	Transfer RNA	11,725	11,793	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,794	11,860	67 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,861	11,932	72 bp	+	–
ND5	Protein-coding gene	11,933	13,762	1,830 bp	+	36.4%
ND6	Protein-coding gene	13,758	14,279	522 bp	−	40.4%
tRNA-Glu	Transfer RNA	14,280	14,349	70 bp	−	–
CYTB	Protein-coding gene	14,352	15,496	1,145 bp	+	40.5%
tRNA-Thr	Transfer RNA	15,497	15,568	72 bp	+	–
tRNA-Pro	Transfer RNA	15,571	15,639	69 bp	−	–
D-loop	Control region	15,640	16,613	974 bp	–	34.0%