Crocodylus porosus
Saltwater crocodile
GC content
43.10%
Whole genome
Non-coding
1,421 bp
D-loop 1,181 bp
Where Saltwater crocodile sits among 2,335 species
Whole-genome GC content against maximum lifespan. Saltwater crocodile has the 106th longest lifespan of them.
- This species
- Other reptiles
- Other classes
Base composition
Whole genome16,916 bp
- GC skew (G − C) / (G + C)
- −0.314
- AT skew (A − T) / (A + T)
- +0.129
Life history
- Maximum lifespan
- 57 years
- Adult weight
- 200 kg
- Female sexual maturity
- 10 years
- Male sexual maturity
- 16 years
Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 03258)
About this record
- Lifespan source
- AnAge build 15
- Based on
- an animal in captivity
- Data quality
- questionable, 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 RefSeqWhole genome16,916 bp
Protein-coding11,381 bp
12S rRNA984 bp
16S rRNA1,587 bp
All tRNA1,546 bp
D-loop1,181 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 963 bp | 44.86% | −0.319 | +0.021 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,055 bp | 44.08% | −0.462 | +0.085 | |||||
| COX1Cytochrome c oxidase subunit I | 1,557 bp | 44.00% | −0.264 | +0.044 | |||||
| COX2Cytochrome c oxidase subunit II | 684 bp | 41.23% | −0.333 | +0.149 | |||||
| ATP8ATP synthase F0 subunit 8 | 162 bp | 39.51% | −0.500 | +0.224 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 42.84% | −0.474 | +0.141 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 46.30% | −0.295 | +0.040 | |||||
| ND3NADH dehydrogenase subunit 3 | 348 bp | 44.83% | −0.192 | +0.021 | |||||
| ND4LNADH dehydrogenase subunit 4L | 294 bp | 44.90% | −0.439 | −0.099 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,374 bp | 43.01% | −0.418 | +0.106 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,854 bp | 45.15% | −0.417 | +0.137 | |||||
| ND6NADH dehydrogenase subunit 6 | 528 bp | 43.75% | −0.567 | +0.428 | |||||
| CYTBCytochrome b | 1,156 bp | 45.42% | −0.402 | +0.065 | |||||
| 12S rRNA12S ribosomal RNA | 984 bp | 47.66% | −0.126 | +0.239 | |||||
| 16S rRNA16S ribosomal RNA | 1,587 bp | 42.97% | −0.141 | +0.262 | |||||
| D-loopControl region (D-loop) | 1,181 bp | 29.21% | −0.183 | +0.141 |
Codon usage
Counts per codon, darker is more frequent3,813 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F5.7%
UUU81
UUC136
Leu L17.0%
UUA114
UUG18
CUU72
CUC90
CUA283
CUG73
Ile I7.8%
AUU131
AUC168
Met M5.2%
AUA147
AUG50
Val V5.0%
GUU33
GUC50
GUA77
GUG30
Ser S7.5%
UCU33
UCC77
UCA97
UCG15
AGU15
AGC49
Pro P5.3%
CCU27
CCC49
CCA113
CCG13
Thr T9.3%
ACU44
ACC141
ACA152
ACG16
Ala A7.8%
GCU43
GCC143
GCA104
GCG9
Tyr Y3.0%
UAU38
UAC75
His H2.5%
CAU23
CAC74
Gln Q2.9%
CAA89
CAG20
Asn N3.4%
AAU35
AAC95
Lys K2.3%
AAA79
AAG10
Asp D1.9%
GAU19
GAC52
Glu E2.4%
GAA65
GAG25
Cys C0.7%
UGU10
UGC17
Trp W2.6%
UGA81
UGG19
Arg R1.8%
CGU6
CGC15
CGA41
CGG8
Gly G5.6%
GGU20
GGC60
GGA91
GGG43
Stop 0.3%
UAA7
UAG1
AGA0
AGG2
Genome map
38 annotated features in NC_008143.1Hover, 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
- D-loop1
- Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
- Middle ring: GC% of each gene against the whole genome (43.1%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 38 features as a table
| Feature | Type | Start | End | Length | Strand | GC |
|---|---|---|---|---|---|---|
| 12S rRNA | Ribosomal RNA | 1 | 984 | 984 bp | + | 47.7% |
| tRNA-Val | Transfer RNA | 991 | 1,059 | 69 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,060 | 2,646 | 1,587 bp | + | 43.0% |
| tRNA-Leu (UUR) | Transfer RNA | 2,658 | 2,733 | 76 bp | + | – |
| ND1 | Protein-coding gene | 2,734 | 3,696 | 963 bp | + | 44.9% |
| tRNA-Ile | Transfer RNA | 3,695 | 3,766 | 72 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,767 | 3,835 | 69 bp | − | – |
| tRNA-Met | Transfer RNA | 3,838 | 3,905 | 68 bp | + | – |
| ND2 | Protein-coding gene | 3,910 | 4,964 | 1,055 bp | + | 44.1% |
| tRNA-Trp | Transfer RNA | 4,965 | 5,040 | 76 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,044 | 5,109 | 66 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,112 | 5,184 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,191 | 5,256 | 66 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,257 | 5,329 | 73 bp | − | – |
| COX1 | Protein-coding gene | 5,329 | 6,885 | 1,557 bp | + | 44.0% |
| tRNA-Ser (UCN) | Transfer RNA | 6,908 | 6,975 | 68 bp | − | – |
| tRNA-Asp | Transfer RNA | 6,979 | 7,049 | 71 bp | + | – |
| COX2 | Protein-coding gene | 7,050 | 7,733 | 684 bp | + | 41.2% |
| tRNA-Lys | Transfer RNA | 7,735 | 7,808 | 74 bp | + | – |
| ATP8 | Protein-coding gene | 7,810 | 7,971 | 162 bp | + | 39.5% |
| ATP6 | Protein-coding gene | 7,962 | 8,645 | 684 bp | + | 42.8% |
| COX3 | Protein-coding gene | 8,645 | 9,428 | 784 bp | + | 46.3% |
| tRNA-Gly | Transfer RNA | 9,429 | 9,498 | 70 bp | + | – |
| ND3 | Protein-coding gene | 9,499 | 9,846 | 348 bp | + | 44.8% |
| tRNA-Arg | Transfer RNA | 9,857 | 9,925 | 69 bp | + | – |
| ND4L | Protein-coding gene | 9,929 | 10,222 | 294 bp | + | 44.9% |
| ND4 | Protein-coding gene | 10,216 | 11,589 | 1,374 bp | + | 43.0% |
| tRNA-Ser (AGY) | Transfer RNA | 11,619 | 11,679 | 61 bp | + | – |
| tRNA-His | Transfer RNA | 11,697 | 11,767 | 71 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,793 | 11,864 | 72 bp | + | – |
| ND5 | Protein-coding gene | 11,868 | 13,721 | 1,854 bp | + | 45.2% |
| ND6 | Protein-coding gene | 13,678 | 14,205 | 528 bp | − | 43.8% |
| tRNA-Glu | Transfer RNA | 14,206 | 14,276 | 71 bp | − | – |
| CYTB | Protein-coding gene | 14,292 | 15,447 | 1,156 bp | + | 45.4% |
| tRNA-Thr | Transfer RNA | 15,504 | 15,575 | 72 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,587 | 15,654 | 68 bp | − | – |
| tRNA-Phe | Transfer RNA | 15,665 | 15,735 | 71 bp | + | – |
| D-loop | Control region | 15,736 | 16,916 | 1,181 bp | – | 29.2% |