Petromyzon marinus

Sea lamprey

Maximum lifespan

9 yr

AnAge record

mtDNA size

16,201 bp

RefSeq NC_001626.1

GC content

37.31%

Whole genome

Non-coding

781 bp

D-loop 491 bp

Where Sea lamprey sits among 2,335 species

Whole-genome GC content against maximum lifespan. Sea lamprey has the 1,658th longest lifespan of them.

This species
All other species

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,201 bp

GC skew (G − C) / (G + C): −0.278
AT skew (A − T) / (A + T): +0.029

Life history

Maximum lifespan: 9 years
Adult weight: 1.4 kg
Female sexual maturity: 8.7 years
Male sexual maturity: 8.7 years

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 01745)

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: 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 genome16,201 bp

Protein-coding11,380 bp

12S rRNA900 bp

16S rRNA1,621 bp

All tRNA1,531 bp

D-loop491 bp

Genes and regions

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

Base composition of Petromyzon marinus genes

ND1NADH dehydrogenase subunit 1	966 bp	29.9%	33.4%	13.4%	23.3%	36.65%	−0.271	−0.056
ND2NADH dehydrogenase subunit 2	1,044 bp	33.0%	32.2%	11.1%	23.7%	34.77%	−0.361	+0.013
COX1Cytochrome c oxidase subunit I	1,554 bp	28.3%	33.0%	15.6%	23.1%	38.67%	−0.195	−0.077
COX2Cytochrome c oxidase subunit II	690 bp	32.2%	29.7%	13.8%	24.3%	38.12%	−0.278	+0.040
ATP8ATP synthase F0 subunit 8	168 bp	33.9%	31.0%	6.5%	28.6%	35.12%	−0.627	+0.046
ATP6ATP synthase F0 subunit 6	679 bp	32.1%	33.3%	10.3%	24.3%	34.61%	−0.404	−0.018
COX3Cytochrome c oxidase subunit III	786 bp	28.0%	30.4%	14.9%	26.7%	41.60%	−0.284	−0.041
ND3NADH dehydrogenase subunit 3	351 bp	27.4%	33.3%	13.1%	26.2%	39.32%	−0.333	−0.099
ND4LNADH dehydrogenase subunit 4L	291 bp	29.2%	30.9%	11.7%	28.2%	39.86%	−0.414	−0.029
ND4NADH dehydrogenase subunit 4	1,377 bp	31.1%	32.8%	10.4%	25.7%	36.09%	−0.425	−0.027
ND5NADH dehydrogenase subunit 5	1,797 bp	34.3%	31.4%	10.5%	23.8%	34.34%	−0.387	+0.044
ND6NADH dehydrogenase subunit 6	519 bp	45.9%	15.6%	11.0%	27.6%	38.54%	−0.430	+0.492
CYTBCytochrome b	1,191 bp	29.6%	35.0%	13.4%	22.0%	35.35%	−0.245	−0.083
12S rRNA12S ribosomal RNA	900 bp	33.4%	21.9%	18.7%	26.0%	44.67%	−0.164	+0.209
16S rRNA16S ribosomal RNA	1,621 bp	37.5%	24.6%	17.1%	20.8%	37.94%	−0.096	+0.209
D-loopControl region (D-loop)	491 bp	28.1%	29.3%	14.5%	28.1%	42.57%	−0.321	−0.021

Codon usage

Counts per codon, darker is more frequent

Gene

3,804 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.2%

UUU137

UUC98

Leu L16.0%

UUA199

UUG12

CUU137

CUC53

CUA194

CUG15

Ile I8.8%

AUU232

AUC102

Met M5.7%

AUA187

AUG29

Val V5.0%

GUU79

GUC31

GUA73

GUG8

Ser S6.9%

UCU73

UCC44

UCA87

UCG3

AGU33

AGC21

Pro P5.2%

CCU53

CCC32

CCA110

CCG4

Thr T8.0%

ACU106

ACC73

ACA125

ACG2

Ala A7.8%

GCU96

GCC102

GCA99

GCG0

Tyr Y2.8%

UAU68

UAC39

His H2.8%

CAU47

CAC58

Gln Q2.6%

CAA92

CAG6

Asn N3.8%

AAU78

AAC67

Lys K2.6%

AAA90

AAG9

Asp D1.8%

GAU32

GAC36

Glu E2.4%

GAA82

GAG11

Cys C1.0%

UGU27

UGC12

Trp W2.9%

UGA99

UGG10

Arg R1.8%

CGU21

CGC8

CGA37

CGG2

Gly G5.6%

GGU51

GGC43

GGA85

GGG33

Stop 0.3%

UAA5

UAG2

AGA5

AGG0

Genome map

38 annotated features in NC_001626.1

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 (37.3%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Petromyzon marinus (NC_001626.1)
Feature	Type	Start	End	Length	Strand	GC
CYTB	Protein-coding gene	1	1,191	1,191 bp	+	35.4%
tRNA-Pro	Transfer RNA	1,195	1,265	71 bp	−	–
tRNA-Phe	Transfer RNA	1,276	1,343	68 bp	+	–
12S rRNA	Ribosomal RNA	1,344	2,243	900 bp	+	44.7%
tRNA-Val	Transfer RNA	2,244	2,314	71 bp	+	–
16S rRNA	Ribosomal RNA	2,315	3,935	1,621 bp	+	37.9%
tRNA-Leu (UUR)	Transfer RNA	3,936	4,009	74 bp	+	–
ND1	Protein-coding gene	4,014	4,979	966 bp	+	36.7%
tRNA-Ile	Transfer RNA	5,003	5,071	69 bp	+	–
tRNA-Gln	Transfer RNA	5,074	5,144	71 bp	−	–
tRNA-Met	Transfer RNA	5,145	5,212	68 bp	+	–
ND2	Protein-coding gene	5,214	6,257	1,044 bp	+	34.8%
tRNA-Trp	Transfer RNA	6,256	6,323	68 bp	+	–
tRNA-Ala	Transfer RNA	6,325	6,393	69 bp	−	–
tRNA-Asn	Transfer RNA	6,397	6,465	69 bp	−	–
tRNA-Cys	Transfer RNA	6,467	6,532	66 bp	−	–
tRNA-Tyr	Transfer RNA	6,538	6,608	71 bp	−	–
COX1	Protein-coding gene	6,610	8,163	1,554 bp	+	38.7%
tRNA-Ser (UCN)	Transfer RNA	8,154	8,224	71 bp	−	–
tRNA-Asp	Transfer RNA	8,226	8,294	69 bp	+	–
COX2	Protein-coding gene	8,298	8,987	690 bp	+	38.1%
tRNA-Lys	Transfer RNA	8,996	9,061	66 bp	+	–
ATP8	Protein-coding gene	9,064	9,231	168 bp	+	35.1%
ATP6	Protein-coding gene	9,222	9,900	679 bp	+	34.6%
COX3	Protein-coding gene	9,901	10,686	786 bp	+	41.6%
tRNA-Gly	Transfer RNA	10,695	10,764	70 bp	+	–
ND3	Protein-coding gene	10,765	11,115	351 bp	+	39.3%
tRNA-Arg	Transfer RNA	11,120	11,185	66 bp	+	–
ND4L	Protein-coding gene	11,194	11,484	291 bp	+	39.9%
ND4	Protein-coding gene	11,478	12,854	1,377 bp	+	36.1%
tRNA-His	Transfer RNA	12,856	12,924	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	12,925	12,994	70 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	12,995	13,066	72 bp	+	–
ND5	Protein-coding gene	13,068	14,864	1,797 bp	+	34.3%
ND6	Protein-coding gene	14,849	15,367	519 bp	−	38.5%
D-loop	Control region	15,368	15,858	491 bp	–	42.6%
tRNA-Thr	Transfer RNA	15,859	15,930	72 bp	+	–
tRNA-Glu	Transfer RNA	15,932	16,002	71 bp	−	–