Didelphis aurita

Big-eared opossum

Maximum lifespan

4 yr

AnAge record

mtDNA size

17,165 bp

RefSeq NC_057516.1

GC content

33.46%

Whole genome

Non-coding

1,823 bp

D-loop 1,704 bp

Where Big-eared opossum sits among 2,335 species

Whole-genome GC content against maximum lifespan. Big-eared opossum has the 2,107th longest lifespan of them.

This species
Other mammals
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome17,165 bp

GC skew (G − C) / (G + C): −0.281
AT skew (A − T) / (A + T): +0.051

Life history

Maximum lifespan: 4 years
Adult weight: 850 g
Female sexual maturity: 170 days
Male sexual maturity: 240 days
Gestation or incubation: 14 days
Litter or clutch size: 6.2

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 02492)

About this record

Lifespan source: AnAge build 15
Based on: an animal in captivity
Data quality: acceptable, small 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 genome17,165 bp

Protein-coding11,318 bp

12S rRNA950 bp

16S rRNA1,572 bp

All tRNA1,505 bp

D-loop1,704 bp

Genes and regions

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

Base composition of Didelphis aurita genes

ND1NADH dehydrogenase subunit 1	956 bp	32.5%	32.7%	10.8%	24.0%	34.73%	−0.380	−0.003
ND2NADH dehydrogenase subunit 2	1,044 bp	35.3%	32.1%	7.5%	25.1%	32.57%	−0.541	+0.048
COX1Cytochrome c oxidase subunit I	1,542 bp	28.9%	34.4%	15.1%	21.6%	36.71%	−0.177	−0.088
COX2Cytochrome c oxidase subunit II	682 bp	33.3%	33.0%	13.5%	20.2%	33.72%	−0.200	+0.004
ATP8ATP synthase F0 subunit 8	210 bp	41.0%	28.6%	5.7%	24.8%	30.48%	−0.625	+0.178
ATP6ATP synthase F0 subunit 6	681 bp	33.0%	32.9%	9.1%	25.0%	34.07%	−0.466	+0.002
COX3Cytochrome c oxidase subunit III	784 bp	29.3%	33.0%	14.4%	23.2%	37.63%	−0.234	−0.059
ND3NADH dehydrogenase subunit 3	346 bp	29.5%	35.3%	11.0%	24.3%	35.26%	−0.377	−0.089
ND4LNADH dehydrogenase subunit 4L	297 bp	32.3%	37.4%	10.8%	19.5%	30.30%	−0.289	−0.072
ND4NADH dehydrogenase subunit 4	1,378 bp	35.1%	32.1%	9.1%	23.7%	32.87%	−0.444	+0.044
ND5NADH dehydrogenase subunit 5	1,800 bp	33.7%	33.2%	9.9%	23.2%	33.11%	−0.399	+0.007
ND6NADH dehydrogenase subunit 6	507 bp	42.4%	27.0%	9.3%	21.3%	30.57%	−0.394	+0.222
CYTBCytochrome b	1,149 bp	32.1%	30.6%	11.9%	25.3%	37.25%	−0.360	+0.024
12S rRNA12S ribosomal RNA	950 bp	37.2%	25.6%	16.8%	20.4%	37.26%	−0.096	+0.185
16S rRNA16S ribosomal RNA	1,572 bp	38.4%	26.3%	15.7%	19.5%	35.24%	−0.108	+0.187
D-loopControl region (D-loop)	1,704 bp	43.1%	33.9%	9.6%	13.4%	22.95%	−0.166	+0.120

Codon usage

Counts per codon, darker is more frequent

Gene

3,790 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.9%

UUU128

UUC96

Leu L15.9%

UUA192

UUG7

CUU113

CUC42

CUA241

CUG9

Ile I10.1%

AUU273

AUC110

Met M6.4%

AUA221

AUG23

Val V4.1%

GUU51

GUC19

GUA74

GUG10

Ser S8.0%

UCU61

UCC54

UCA139

UCG2

AGU22

AGC25

Pro P5.1%

CCU64

CCC39

CCA87

CCG2

Thr T7.8%

ACU88

ACC61

ACA142

ACG6

Ala A6.1%

GCU74

GCC70

GCA86

GCG0

Tyr Y3.8%

UAU92

UAC51

His H2.5%

CAU46

CAC47

Gln Q2.5%

CAA93

CAG2

Asn N4.1%

AAU90

AAC66

Lys K2.6%

AAA89

AAG8

Asp D1.8%

GAU42

GAC26

Glu E2.3%

GAA82

GAG6

Cys C0.7%

UGU14

UGC14

Trp W2.7%

UGA99

UGG4

Arg R1.8%

CGU10

CGC7

CGA47

CGG3

Gly G5.6%

GGU44

GGC36

GGA114

GGG19

Stop 0.2%

UAA7

UAG1

AGA0

AGG0

Genome map

38 annotated features in NC_057516.1

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 (33.5%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Didelphis aurita (NC_057516.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	71	71 bp	+	–
12S rRNA	Ribosomal RNA	73	1,022	950 bp	+	37.3%
tRNA-Val	Transfer RNA	1,024	1,094	71 bp	+	–
16S rRNA	Ribosomal RNA	1,095	2,666	1,572 bp	+	35.2%
tRNA-Leu (UUR)	Transfer RNA	2,667	2,740	74 bp	+	–
ND1	Protein-coding gene	2,742	3,697	956 bp	+	34.7%
tRNA-Ile	Transfer RNA	3,698	3,766	69 bp	+	–
tRNA-Gln	Transfer RNA	3,764	3,833	70 bp	−	–
tRNA-Met	Transfer RNA	3,834	3,902	69 bp	+	–
ND2	Protein-coding gene	3,903	4,946	1,044 bp	+	32.6%
tRNA-Ala	Transfer RNA	4,944	5,012	69 bp	−	–
tRNA-Cys	Transfer RNA	5,022	5,088	67 bp	−	–
tRNA-Trp	Transfer RNA	5,099	5,169	71 bp	+	–
tRNA-Asn	Transfer RNA	5,243	5,314	72 bp	−	–
tRNA-Tyr	Transfer RNA	5,317	5,384	68 bp	+	–
COX1	Protein-coding gene	5,386	6,927	1,542 bp	+	36.7%
tRNA-Ser (UCN)	Transfer RNA	6,929	6,997	69 bp	−	–
tRNA-Asp	Transfer RNA	7,002	7,071	70 bp	+	–
COX2	Protein-coding gene	7,074	7,755	682 bp	+	33.7%
tRNA-Lys	Transfer RNA	7,756	7,816	61 bp	+	–
ATP8	Protein-coding gene	7,819	8,028	210 bp	+	30.5%
ATP6	Protein-coding gene	7,983	8,663	681 bp	+	34.1%
COX3	Protein-coding gene	8,663	9,446	784 bp	+	37.6%
tRNA-Gly	Transfer RNA	9,447	9,514	68 bp	+	–
ND3	Protein-coding gene	9,515	9,860	346 bp	+	35.3%
tRNA-Arg	Transfer RNA	9,861	9,930	70 bp	+	–
ND4L	Protein-coding gene	9,931	10,227	297 bp	+	30.3%
ND4	Protein-coding gene	10,221	11,598	1,378 bp	+	32.9%
tRNA-His	Transfer RNA	11,599	11,667	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,668	11,723	56 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,725	11,795	71 bp	+	–
ND5	Protein-coding gene	11,796	13,595	1,800 bp	+	33.1%
ND6	Protein-coding gene	13,592	14,098	507 bp	−	30.6%
tRNA-Glu	Transfer RNA	14,099	14,167	69 bp	−	–
CYTB	Protein-coding gene	14,169	15,317	1,149 bp	+	37.3%
tRNA-Thr	Transfer RNA	15,326	15,393	68 bp	+	–
tRNA-Pro	Transfer RNA	15,396	15,461	66 bp	−	–
D-loop	Control region	15,462	17,165	1,704 bp	–	23.0%