Entosphenus tridentatus

Pacific lamprey

Maximum lifespan

9 yr

AnAge record

mtDNA size

16,151 bp

RefSeq NC_066902.1

GC content

38.05%

Whole genome

Non-coding

738 bp

D-loop 627 bp

Where Pacific lamprey sits among 2,335 species

Whole-genome GC content against maximum lifespan. Pacific lamprey has the 1,677th longest lifespan of them.

This species
All other species

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,151 bp

GC skew (G − C) / (G + C): −0.277
AT skew (A − T) / (A + T): +0.036

Life history

Maximum lifespan: 9 years
Adult weight: 275 g

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 01731)

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 genome16,151 bp

Protein-coding11,372 bp

12S rRNA899 bp

16S rRNA1,619 bp

All tRNA1,533 bp

D-loop627 bp

Genes and regions

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

Base composition of Entosphenus tridentatus genes

ND1NADH dehydrogenase subunit 1	966 bp	30.3%	33.0%	13.5%	23.2%	36.65%	−0.266	−0.042
ND2NADH dehydrogenase subunit 2	1,042 bp	32.3%	29.9%	11.6%	26.1%	37.72%	−0.384	+0.039
COX1Cytochrome c oxidase subunit I	1,554 bp	28.6%	31.7%	15.5%	24.2%	39.70%	−0.219	−0.050
COX2Cytochrome c oxidase subunit II	684 bp	32.2%	29.8%	14.2%	23.8%	38.01%	−0.254	+0.038
ATP8ATP synthase F0 subunit 8	168 bp	34.5%	29.2%	8.3%	28.0%	36.31%	−0.541	+0.084
ATP6ATP synthase F0 subunit 6	714 bp	31.4%	32.9%	10.5%	25.2%	35.71%	−0.412	−0.024
COX3Cytochrome c oxidase subunit III	786 bp	28.0%	30.0%	15.8%	26.2%	41.99%	−0.248	−0.035
ND3NADH dehydrogenase subunit 3	351 bp	25.9%	32.8%	12.5%	28.8%	41.31%	−0.393	−0.117
ND4LNADH dehydrogenase subunit 4L	291 bp	31.6%	28.5%	11.7%	28.2%	39.86%	−0.414	+0.051
ND4NADH dehydrogenase subunit 4	1,377 bp	31.7%	33.3%	10.2%	24.8%	35.00%	−0.415	−0.023
ND5NADH dehydrogenase subunit 5	1,797 bp	33.6%	29.9%	11.2%	25.3%	36.56%	−0.385	+0.058
ND6NADH dehydrogenase subunit 6	519 bp	46.2%	15.4%	11.0%	27.4%	38.34%	−0.427	+0.500
CYTBCytochrome b	1,191 bp	29.0%	33.7%	14.2%	23.2%	37.36%	−0.240	−0.075
12S rRNA12S ribosomal RNA	899 bp	32.8%	21.9%	18.9%	26.4%	45.27%	−0.165	+0.199
16S rRNA16S ribosomal RNA	1,619 bp	36.3%	25.2%	17.4%	21.2%	38.54%	−0.099	+0.180
D-loopControl region (D-loop)	627 bp	28.5%	38.4%	11.6%	21.4%	33.01%	−0.295	−0.148

Codon usage

Counts per codon, darker is more frequent

Gene

3,813 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.2%

UUU138

UUC98

Leu L15.9%

UUA183

UUG13

CUU133

CUC54

CUA208

CUG17

Ile I8.7%

AUU244

AUC88

Met M5.7%

AUA184

AUG35

Val V4.8%

GUU69

GUC27

GUA73

GUG14

Ser S6.9%

UCU67

UCC49

UCA86

UCG2

AGU26

AGC32

Pro P5.4%

CCU49

CCC34

CCA112

CCG9

Thr T8.1%

ACU96

ACC77

ACA130

ACG4

Ala A8.1%

GCU93

GCC114

GCA97

GCG3

Tyr Y2.8%

UAU64

UAC44

His H2.6%

CAU42

CAC59

Gln Q2.6%

CAA92

CAG7

Asn N3.8%

AAU75

AAC69

Lys K2.5%

AAA86

AAG8

Asp D1.8%

GAU37

GAC32

Glu E2.5%

GAA83

GAG12

Cys C1.0%

UGU24

UGC14

Trp W2.9%

UGA104

UGG5

Arg R1.9%

CGU14

CGC18

CGA35

CGG5

Gly G5.6%

GGU34

GGC61

GGA86

GGG33

Stop 0.3%

UAA5

UAG1

AGA5

AGG1

Genome map

39 annotated features in NC_066902.1

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-loop2

Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
Middle ring: GC% of each gene against the whole genome (38.0%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 39 features as a table

Annotated features of Entosphenus tridentatus (NC_066902.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	67	67 bp	+	–
12S rRNA	Ribosomal RNA	68	966	899 bp	+	45.3%
tRNA-Val	Transfer RNA	967	1,037	71 bp	+	–
16S rRNA	Ribosomal RNA	1,038	2,656	1,619 bp	+	38.5%
tRNA-Leu (UUR)	Transfer RNA	2,658	2,731	74 bp	+	–
ND1	Protein-coding gene	2,736	3,701	966 bp	+	36.7%
tRNA-Ile	Transfer RNA	3,733	3,801	69 bp	+	–
tRNA-Gln	Transfer RNA	3,804	3,874	71 bp	−	–
tRNA-Met	Transfer RNA	3,875	3,942	68 bp	+	–
ND2	Protein-coding gene	3,944	4,985	1,042 bp	+	37.7%
tRNA-Trp	Transfer RNA	4,986	5,053	68 bp	+	–
tRNA-Ala	Transfer RNA	5,058	5,127	70 bp	−	–
tRNA-Asn	Transfer RNA	5,130	5,198	69 bp	−	–
tRNA-Cys	Transfer RNA	5,199	5,265	67 bp	−	–
tRNA-Tyr	Transfer RNA	5,271	5,341	71 bp	−	–
COX1	Protein-coding gene	5,343	6,896	1,554 bp	+	39.7%
tRNA-Ser (UCN)	Transfer RNA	6,887	6,958	72 bp	−	–
tRNA-Asp	Transfer RNA	6,959	7,027	69 bp	+	–
COX2	Protein-coding gene	7,031	7,714	684 bp	+	38.0%
tRNA-Lys	Transfer RNA	7,733	7,800	68 bp	+	–
ATP8	Protein-coding gene	7,802	7,969	168 bp	+	36.3%
ATP6	Protein-coding gene	7,960	8,673	714 bp	+	35.7%
COX3	Protein-coding gene	8,639	9,424	786 bp	+	42.0%
tRNA-Gly	Transfer RNA	9,433	9,501	69 bp	+	–
ND3	Protein-coding gene	9,503	9,853	351 bp	+	41.3%
tRNA-Arg	Transfer RNA	9,859	9,924	66 bp	+	–
ND4L	Protein-coding gene	9,931	10,221	291 bp	+	39.9%
ND4	Protein-coding gene	10,215	11,591	1,377 bp	+	35.0%
tRNA-His	Transfer RNA	11,593	11,661	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,661	11,730	70 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,731	11,802	72 bp	+	–
ND5	Protein-coding gene	11,804	13,600	1,797 bp	+	36.6%
ND6	Protein-coding gene	13,585	14,103	519 bp	−	38.3%
D-loop	Control region	14,104	14,573	470 bp	–	33.0%
tRNA-Thr	Transfer RNA	14,574	14,645	72 bp	+	–
tRNA-Glu	Transfer RNA	14,647	14,717	71 bp	−	–
D-loop	Control region	14,718	14,874	157 bp	–	33.0%
CYTB	Protein-coding gene	14,876	16,066	1,191 bp	+	37.4%
tRNA-Pro	Transfer RNA	16,072	16,142	71 bp	−	–