Caiman crocodilus

Spectacled caiman

Maximum lifespan

40 yr

AnAge record

mtDNA size

17,900 bp

RefSeq NC_002744.2

GC content

42.55%

Whole genome

Non-coding

2,407 bp

D-loop 1,992 bp

Where Spectacled caiman sits among 2,335 species

Whole-genome GC content against maximum lifespan. Spectacled caiman has the 259th longest lifespan of them.

This species
Other reptiles
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome17,900 bp

GC skew (G − C) / (G + C): −0.424
AT skew (A − T) / (A + T): +0.130

Life history

Maximum lifespan: 40 years
Adult weight: 10.9 kg
Female sexual maturity: 6 years
Male sexual maturity: 6 years
Gestation or incubation: 84 days

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 03246)

About this record

Lifespan source: AnAge build 15
Based on: an animal in captivity
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 genome17,900 bp

Protein-coding11,360 bp

12S rRNA988 bp

16S rRNA1,592 bp

All tRNA1,561 bp

D-loop1,992 bp

Genes and regions

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

Base composition of Caiman crocodilus genes

ND1NADH dehydrogenase subunit 1	966 bp	30.2%	26.3%	12.4%	31.1%	43.48%	−0.429	+0.070
ND2NADH dehydrogenase subunit 2	1,059 bp	30.4%	26.7%	10.7%	32.2%	42.87%	−0.502	+0.064
COX1Cytochrome c oxidase subunit I	1,558 bp	29.2%	26.3%	14.9%	29.6%	44.48%	−0.330	+0.052
COX2Cytochrome c oxidase subunit II	688 bp	32.4%	25.0%	11.3%	31.3%	42.59%	−0.468	+0.129
ATP8ATP synthase F0 subunit 8	169 bp	35.5%	23.7%	5.9%	34.9%	40.83%	−0.710	+0.200
ATP6ATP synthase F0 subunit 6	684 bp	32.5%	24.0%	7.6%	36.0%	43.57%	−0.651	+0.150
COX3Cytochrome c oxidase subunit III	784 bp	27.9%	25.0%	14.0%	33.0%	47.07%	−0.404	+0.055
ND3NADH dehydrogenase subunit 3	348 bp	29.3%	27.3%	11.2%	32.2%	43.39%	−0.483	+0.036
ND4LNADH dehydrogenase subunit 4L	294 bp	27.9%	26.2%	9.2%	36.7%	45.92%	−0.600	+0.031
ND4NADH dehydrogenase subunit 4	1,374 bp	30.8%	22.3%	11.6%	35.3%	46.87%	−0.506	+0.159
ND5NADH dehydrogenase subunit 5	1,797 bp	33.4%	23.7%	9.4%	33.5%	42.91%	−0.562	+0.170
ND6NADH dehydrogenase subunit 6	522 bp	42.9%	11.1%	6.5%	39.5%	45.98%	−0.717	+0.589
CYTBCytochrome b	1,150 bp	29.7%	25.2%	11.0%	34.2%	45.13%	−0.514	+0.081
12S rRNA12S ribosomal RNA	988 bp	32.1%	19.2%	21.3%	27.4%	48.68%	−0.127	+0.250
16S rRNA16S ribosomal RNA	1,592 bp	35.7%	21.1%	17.2%	26.0%	43.22%	−0.203	+0.257
D-loopControl region (D-loop)	1,992 bp	35.1%	36.4%	7.3%	21.1%	28.41%	−0.488	−0.018

Codon usage

Counts per codon, darker is more frequent

Gene

3,796 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.1%

UUU82

UUC151

Leu L16.4%

UUA79

UUG23

CUU67

CUC154

CUA285

CUG16

Ile I7.7%

AUU109

AUC184

Met M5.2%

AUA168

AUG28

Val V4.5%

GUU41

GUC41

GUA69

GUG21

Ser S7.3%

UCU46

UCC92

UCA86

UCG4

AGU9

AGC42

Pro P6.1%

CCU30

CCC77

CCA119

CCG7

Thr T10.5%

ACU48

ACC179

ACA163

ACG10

Ala A7.2%

GCU47

GCC140

GCA79

GCG6

Tyr Y2.8%

UAU30

UAC78

His H2.6%

CAU14

CAC83

Gln Q2.3%

CAA88

CAG1

Asn N3.7%

AAU29

AAC111

Lys K2.5%

AAA90

AAG4

Asp D1.7%

GAU13

GAC53

Glu E2.3%

GAA75

GAG12

Cys C0.9%

UGU17

UGC17

Trp W2.6%

UGA84

UGG15

Arg R1.8%

CGU5

CGC17

CGA44

CGG1

Gly G5.4%

GGU18

GGC55

GGA101

GGG31

Stop 0.2%

UAA5

UAG1

AGA1

AGG1

Genome map

38 annotated features in NC_002744.2

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 (42.5%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Caiman crocodilus (NC_002744.2)
Feature	Type	Start	End	Length	Strand	GC
12S rRNA	Ribosomal RNA	1	988	988 bp	+	48.7%
tRNA-Val	Transfer RNA	989	1,056	68 bp	+	–
16S rRNA	Ribosomal RNA	1,058	2,649	1,592 bp	+	43.2%
tRNA-Leu (UUR)	Transfer RNA	2,650	2,724	75 bp	+	–
ND1	Protein-coding gene	2,725	3,690	966 bp	+	43.5%
tRNA-Ile	Transfer RNA	3,689	3,761	73 bp	+	–
tRNA-Gln	Transfer RNA	3,760	3,830	71 bp	−	–
tRNA-Met	Transfer RNA	3,830	3,898	69 bp	+	–
ND2	Protein-coding gene	3,900	4,958	1,059 bp	+	42.9%
tRNA-Trp	Transfer RNA	4,958	5,033	76 bp	+	–
tRNA-Ala	Transfer RNA	5,039	5,104	66 bp	−	–
tRNA-Asn	Transfer RNA	5,108	5,179	72 bp	−	–
tRNA-Cys	Transfer RNA	5,184	5,249	66 bp	−	–
tRNA-Tyr	Transfer RNA	5,250	5,327	78 bp	−	–
COX1	Protein-coding gene	5,324	6,881	1,558 bp	+	44.5%
tRNA-Ser (UCN)	Transfer RNA	6,891	6,961	71 bp	−	–
tRNA-Asp	Transfer RNA	6,966	7,038	73 bp	+	–
COX2	Protein-coding gene	7,039	7,726	688 bp	+	42.6%
tRNA-Lys	Transfer RNA	7,727	7,804	78 bp	+	–
ATP8	Protein-coding gene	7,806	7,974	169 bp	+	40.8%
ATP6	Protein-coding gene	7,958	8,641	684 bp	+	43.6%
COX3	Protein-coding gene	8,641	9,424	784 bp	+	47.1%
tRNA-Gly	Transfer RNA	9,424	9,495	72 bp	+	–
ND3	Protein-coding gene	9,496	9,843	348 bp	+	43.4%
tRNA-Arg	Transfer RNA	9,858	9,925	68 bp	+	–
ND4L	Protein-coding gene	9,929	10,222	294 bp	+	45.9%
ND4	Protein-coding gene	10,216	11,589	1,374 bp	+	46.9%
tRNA-Ser (AGY)	Transfer RNA	11,851	11,915	65 bp	+	–
tRNA-His	Transfer RNA	11,921	11,988	68 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,998	12,069	72 bp	+	–
ND5	Protein-coding gene	12,072	13,868	1,797 bp	+	42.9%
ND6	Protein-coding gene	13,861	14,382	522 bp	−	46.0%
tRNA-Glu	Transfer RNA	14,383	14,451	69 bp	−	–
CYTB	Protein-coding gene	14,461	15,610	1,150 bp	+	45.1%
tRNA-Thr	Transfer RNA	15,686	15,757	72 bp	+	–
tRNA-Pro	Transfer RNA	15,758	15,829	72 bp	−	–
tRNA-Phe	Transfer RNA	15,839	15,908	70 bp	+	–
D-loop	Control region	15,909	17,900	1,992 bp	–	28.4%