Placopecten magellanicus

Sea scallop

Maximum lifespan

20 yr

AnAge record

mtDNA size

32,115 bp

RefSeq NC_007234.1

GC content

44.33%

Whole genome

Non-coding

16,390 bp

Including the D-loop

Where Sea scallop sits among 2,335 species

Whole-genome GC content against maximum lifespan. Sea scallop has the 909th longest lifespan of them.

This species
All other species

Plot other mtDNA features with this species highlighted

Base composition

Whole genome32,115 bp

GC skew (G − C) / (G + C): +0.403
AT skew (A − T) / (A + T): −0.275

Life history

Maximum lifespan: 20 years

Lifespan from AnAge · AnAge record

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 genome32,115 bp

Protein-coding11,240 bp

12S rRNA970 bp

16S rRNA1,387 bp

All tRNA2,165 bp

Genes and regions

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

Base composition of Placopecten magellanicus genes

ND1NADH dehydrogenase subunit 1	948 bp	15.6%	41.9%	30.6%	11.9%	42.51%	+0.439	−0.457
ND2NADH dehydrogenase subunit 2	966 bp	14.6%	43.0%	31.2%	11.3%	42.44%	+0.468	−0.493
COX1Cytochrome c oxidase subunit I	1,513 bp	17.4%	39.5%	26.8%	16.3%	43.09%	+0.242	−0.387
COX2Cytochrome c oxidase subunit II	685 bp	16.8%	37.1%	32.4%	13.7%	46.13%	+0.405	−0.377
ATP6ATP synthase F0 subunit 6	750 bp	16.8%	40.1%	32.4%	10.7%	43.07%	+0.505	−0.410
COX3Cytochrome c oxidase subunit III	828 bp	16.5%	37.9%	32.4%	13.2%	45.53%	+0.422	−0.392
ND3NADH dehydrogenase subunit 3	354 bp	13.8%	41.5%	31.6%	13.0%	44.63%	+0.418	−0.500
ND4LNADH dehydrogenase subunit 4L	297 bp	12.1%	37.7%	39.4%	10.8%	50.17%	+0.570	−0.514
ND4NADH dehydrogenase subunit 4	1,284 bp	15.0%	42.4%	31.2%	11.5%	42.68%	+0.460	−0.478
ND5NADH dehydrogenase subunit 5	1,860 bp	15.7%	38.2%	32.9%	13.2%	46.08%	+0.428	−0.418
ND6NADH dehydrogenase subunit 6	567 bp	14.8%	36.9%	34.9%	13.4%	48.33%	+0.445	−0.427
CYTBCytochrome b	1,188 bp	16.7%	40.3%	29.5%	13.5%	43.01%	+0.374	−0.415
12S rRNA12S ribosomal RNA	970 bp	25.5%	27.4%	27.2%	19.9%	47.11%	+0.155	−0.037
16S rRNA16S ribosomal RNA	1,387 bp	26.2%	31.9%	28.3%	13.6%	41.96%	+0.351	−0.098

Codon usage

Counts per codon, darker is more frequent

Gene

3,746 codons in all protein-coding genes. Grouped with the Invertebrate mitochondrial code (NCBI table 5).

Phe F9.7%

UUU327

UUC35

Leu L14.0%

UUA138

UUG230

CUU83

CUC13

CUA32

CUG29

Ile I3.5%

AUU112

AUC20

Met M4.1%

AUA51

AUG101

Val V11.0%

GUU178

GUC9

GUA47

GUG179

Ser S10.0%

UCU106

UCC18

UCA16

UCG13

AGU47

AGC15

AGA24

AGG137

Pro P3.8%

CCU78

CCC22

CCA14

CCG27

Thr T2.8%

ACU70

ACC11

ACA9

ACG15

Ala A5.6%

GCU117

GCC32

GCA18

GCG41

Tyr Y4.2%

UAU117

UAC40

His H1.8%

CAU48

CAC19

Gln Q1.5%

CAA9

CAG47

Asn N1.6%

AAU47

AAC13

Lys K2.1%

AAA13

AAG65

Asp D1.9%

GAU52

GAC19

Glu E2.6%

GAA10

GAG88

Cys C2.7%

UGU80

UGC23

Trp W3.6%

UGA11

UGG123

Arg R2.6%

CGU32

CGC12

CGA10

CGG42

Gly G10.7%

GGU113

GGC34

GGA31

GGG224

Stop 0.3%

UAA2

UAG8

Genome map

46 annotated features in NC_007234.1

Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.

Protein-coding12
rRNA2
tRNA32

Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
Middle ring: GC% of each gene against the whole genome (44.3%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 46 features as a table

Annotated features of Placopecten magellanicus (NC_007234.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Gly	Transfer RNA	3	68	66 bp	+	–
tRNA-Met	Transfer RNA	1,854	1,923	70 bp	+	–
tRNA-Met	Transfer RNA	2,033	2,102	70 bp	+	–
tRNA-Asn	Transfer RNA	2,106	2,172	67 bp	+	–
tRNA-Glu	Transfer RNA	3,109	3,175	67 bp	+	–
tRNA-Asp	Transfer RNA	4,110	4,176	67 bp	+	–
tRNA-Lys	Transfer RNA	4,677	4,742	66 bp	+	–
tRNA-Ser (UCN)	Transfer RNA	5,717	5,782	66 bp	+	–
16S rRNA	Ribosomal RNA	6,254	7,640	1,387 bp	+	42.0%
12S rRNA	Ribosomal RNA	7,692	8,661	970 bp	+	47.1%
tRNA-Ser (UCN)	Transfer RNA	9,166	9,233	68 bp	+	–
ND4L	Protein-coding gene	9,652	9,948	297 bp	+	50.2%
ND2	Protein-coding gene	9,951	10,916	966 bp	+	42.4%
ND4	Protein-coding gene	11,009	12,292	1,284 bp	+	42.7%
tRNA-His	Transfer RNA	12,295	12,361	67 bp	+	–
tRNA-Trp	Transfer RNA	12,370	12,436	67 bp	+	–
tRNA-Tyr	Transfer RNA	12,438	12,503	66 bp	+	–
tRNA-Thr	Transfer RNA	12,513	12,579	67 bp	+	–
tRNA-Ile	Transfer RNA	12,657	12,727	71 bp	+	–
tRNA-Met	Transfer RNA	12,733	12,802	70 bp	+	–
tRNA-Cys	Transfer RNA	12,816	12,883	68 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	12,889	12,954	66 bp	+	–
ND1	Protein-coding gene	13,108	14,055	948 bp	+	42.5%
COX1	Protein-coding gene	14,105	15,617	1,513 bp	+	43.1%
ND5	Protein-coding gene	15,853	17,712	1,860 bp	+	46.1%
ND3	Protein-coding gene	17,727	18,080	354 bp	+	44.6%
tRNA-Met	Transfer RNA	18,151	18,218	68 bp	+	–
ND6	Protein-coding gene	18,182	18,748	567 bp	+	48.3%
tRNA-Met	Transfer RNA	19,144	19,209	66 bp	+	–
tRNA-Phe	Transfer RNA	22,322	22,389	68 bp	+	–
tRNA-Met	Transfer RNA	22,542	22,611	70 bp	+	–
tRNA-Phe	Transfer RNA	22,769	22,836	68 bp	+	–
tRNA-Met	Transfer RNA	23,433	23,498	66 bp	+	–
ATP6	Protein-coding gene	23,702	24,451	750 bp	+	43.1%
tRNA-Leu (UUR)	Transfer RNA	25,051	25,114	64 bp	+	–
CYTB	Protein-coding gene	25,117	26,304	1,188 bp	+	43.0%
COX2	Protein-coding gene	26,404	27,088	685 bp	+	46.1%
tRNA-Gln	Transfer RNA	28,108	28,178	71 bp	+	–
tRNA-Lys	Transfer RNA	28,285	28,352	68 bp	+	–
tRNA-Ala	Transfer RNA	28,423	28,488	66 bp	+	–
COX3	Protein-coding gene	28,575	29,402	828 bp	+	45.5%
tRNA-Phe	Transfer RNA	29,640	29,707	68 bp	+	–
tRNA-Met	Transfer RNA	29,860	29,929	70 bp	+	–
tRNA-Met	Transfer RNA	30,654	30,719	66 bp	+	–
tRNA-Met	Transfer RNA	31,355	31,424	70 bp	+	–
tRNA-Asn	Transfer RNA	31,428	31,494	67 bp	+	–