Amblyrhynchus cristatus
Marine iguana
GC content
44.81%
Whole genome
Non-coding
1,545 bp
Including the D-loop
Where Marine iguana sits among 2,335 species
Whole-genome GC content against maximum lifespan. Marine iguana has the 1,887th longest lifespan of them.
- This species
- Other reptiles
- Other classes
Base composition
Whole genome16,897 bp
- GC skew (G − C) / (G + C)
- −0.387
- AT skew (A − T) / (A + T)
- +0.177
Life history
- Maximum lifespan
- 6.4 years
- Adult weight
- 2.2 kg
Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 03491)
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 RefSeqWhole genome16,897 bp
Protein-coding11,338 bp
12S rRNA944 bp
16S rRNA1,543 bp
All tRNA1,533 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 966 bp | 45.76% | −0.448 | +0.137 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,038 bp | 44.99% | −0.555 | +0.275 | |||||
| COX1Cytochrome c oxidase subunit I | 1,548 bp | 46.00% | −0.247 | +0.014 | |||||
| COX2Cytochrome c oxidase subunit II | 688 bp | 44.19% | −0.349 | +0.115 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 43.45% | −0.671 | +0.263 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 46.20% | −0.519 | +0.060 | |||||
| COX3Cytochrome c oxidase subunit III | 786 bp | 48.22% | −0.325 | +0.052 | |||||
| ND3NADH dehydrogenase subunit 3 | 346 bp | 45.95% | −0.484 | +0.048 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 45.46% | −0.496 | +0.136 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 46.05% | −0.557 | +0.181 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,794 bp | 44.09% | −0.520 | +0.216 | |||||
| ND6NADH dehydrogenase subunit 6 | 525 bp | 46.10% | −0.579 | +0.682 | |||||
| CYTBCytochrome b | 1,140 bp | 46.32% | −0.451 | +0.075 | |||||
| 12S rRNA12S ribosomal RNA | 944 bp | 45.13% | −0.202 | +0.309 | |||||
| 16S rRNA16S ribosomal RNA | 1,543 bp | 46.47% | −0.219 | +0.327 |
Codon usage
Counts per codon, darker is more frequent3,786 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F5.8%
UUU87
UUC133
Leu L16.7%
UUA60
UUG24
CUU58
CUC134
CUA319
CUG39
Ile I8.4%
AUU97
AUC220
Met M4.8%
AUA144
AUG37
Val V4.4%
GUU35
GUC50
GUA62
GUG18
Ser S7.2%
UCU31
UCC84
UCA101
UCG5
AGU4
AGC47
Pro P5.6%
CCU20
CCC71
CCA110
CCG10
Thr T10.1%
ACU35
ACC160
ACA179
ACG7
Ala A7.5%
GCU24
GCC149
GCA101
GCG10
Tyr Y3.0%
UAU22
UAC91
His H2.7%
CAU12
CAC90
Gln Q2.6%
CAA92
CAG5
Asn N3.6%
AAU20
AAC116
Lys K2.2%
AAA78
AAG5
Asp D1.7%
GAU14
GAC50
Glu E2.4%
GAA69
GAG22
Cys C0.7%
UGU7
UGC20
Trp W2.8%
UGA84
UGG21
Arg R1.9%
CGU8
CGC15
CGA44
CGG5
Gly G5.8%
GGU22
GGC74
GGA87
GGG38
Stop 0.3%
UAA7
UAG1
AGA1
AGG1
Genome map
37 annotated features in NC_028031.1Hover, 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
- Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
- Middle ring: GC% of each gene against the whole genome (44.8%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 37 features as a table
| Feature | Type | Start | End | Length | Strand | GC |
|---|---|---|---|---|---|---|
| tRNA-Phe | Transfer RNA | 1 | 74 | 74 bp | + | – |
| 12S rRNA | Ribosomal RNA | 75 | 1,018 | 944 bp | + | 45.1% |
| tRNA-Val | Transfer RNA | 1,018 | 1,088 | 71 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,089 | 2,631 | 1,543 bp | + | 46.5% |
| tRNA-Leu (UUR) | Transfer RNA | 2,634 | 2,707 | 74 bp | + | – |
| ND1 | Protein-coding gene | 2,708 | 3,673 | 966 bp | + | 45.8% |
| tRNA-Ile | Transfer RNA | 3,679 | 3,748 | 70 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,747 | 3,816 | 70 bp | − | – |
| tRNA-Met | Transfer RNA | 3,816 | 3,884 | 69 bp | + | – |
| ND2 | Protein-coding gene | 3,885 | 4,922 | 1,038 bp | + | 45.0% |
| tRNA-Trp | Transfer RNA | 4,924 | 4,994 | 71 bp | + | – |
| tRNA-Ala | Transfer RNA | 4,997 | 5,065 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,068 | 5,140 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,167 | 5,230 | 64 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,232 | 5,302 | 71 bp | − | – |
| COX1 | Protein-coding gene | 5,304 | 6,851 | 1,548 bp | + | 46.0% |
| tRNA-Ser (UCN) | Transfer RNA | 6,847 | 6,917 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 6,921 | 6,990 | 70 bp | + | – |
| COX2 | Protein-coding gene | 6,991 | 7,678 | 688 bp | + | 44.2% |
| tRNA-Lys | Transfer RNA | 7,679 | 7,743 | 65 bp | + | – |
| ATP8 | Protein-coding gene | 7,745 | 7,912 | 168 bp | + | 43.5% |
| ATP6 | Protein-coding gene | 7,903 | 8,586 | 684 bp | + | 46.2% |
| COX3 | Protein-coding gene | 8,586 | 9,371 | 786 bp | + | 48.2% |
| tRNA-Gly | Transfer RNA | 9,372 | 9,441 | 70 bp | + | – |
| ND3 | Protein-coding gene | 9,442 | 9,787 | 346 bp | + | 46.0% |
| tRNA-Arg | Transfer RNA | 9,788 | 9,855 | 68 bp | + | – |
| ND4L | Protein-coding gene | 9,856 | 10,152 | 297 bp | + | 45.5% |
| ND4 | Protein-coding gene | 10,146 | 11,526 | 1,381 bp | + | 46.1% |
| tRNA-His | Transfer RNA | 11,527 | 11,595 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,596 | 11,662 | 67 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,662 | 11,733 | 72 bp | + | – |
| ND5 | Protein-coding gene | 11,750 | 13,543 | 1,794 bp | + | 44.1% |
| ND6 | Protein-coding gene | 13,539 | 14,063 | 525 bp | − | 46.1% |
| tRNA-Glu | Transfer RNA | 14,065 | 14,134 | 70 bp | − | – |
| CYTB | Protein-coding gene | 14,137 | 15,276 | 1,140 bp | + | 46.3% |
| tRNA-Thr | Transfer RNA | 15,280 | 15,350 | 71 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,351 | 15,418 | 68 bp | − | – |