Alligator sinensis
Chinese alligator
Retired record. RefSeq NC_004448.1 is not in NCBI RefSeq release 237 (mitochondrion.1.genomic.gbff.gz, file date 2026-09-03) (suppressed) and the release has no other complete mitogenome of NCBI species 38654 (Alligator sinensis); no longer qualifies under the RefSeq-only rule Its build 1 values are kept and it is left out of the correlations.
GC content
45.98%
Whole genome
Non-coding
1,305 bp
Including the D-loop
Where Chinese alligator sits among 2,335 species
Whole-genome GC content against maximum lifespan. Chinese alligator has the 79th longest lifespan of them.
- This species
- Other reptiles
- Other classes
Base composition
Whole genome16,746 bp
- GC skew (G − C) / (G + C)
- −0.354
- AT skew (A − T) / (A + T)
- +0.090
Life history
- Maximum lifespan
- 65 years
- Adult weight
- 14.6 kg
- Female sexual maturity
- 6 years
Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 03245)
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
- Retired
- 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 genome16,746 bp
Protein-coding11,389 bp
12S rRNA985 bp
16S rRNA1,579 bp
All tRNA2,443 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 966 bp | 47.00% | −0.388 | +0.012 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,065 bp | 45.07% | −0.458 | +0.070 | |||||
| COX1Cytochrome c oxidase subunit I | 1,578 bp | 47.28% | −0.295 | +0.002 | |||||
| COX2Cytochrome c oxidase subunit II | 688 bp | 46.80% | −0.373 | +0.071 | |||||
| ATP8ATP synthase F0 subunit 8 | 183 bp | 47.00% | −0.605 | +0.196 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 45.18% | −0.456 | +0.019 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 48.85% | −0.342 | −0.002 | |||||
| ND3NADH dehydrogenase subunit 3 | 348 bp | 46.26% | −0.416 | +0.016 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 44.78% | −0.429 | +0.012 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,374 bp | 46.07% | −0.460 | +0.026 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,812 bp | 46.47% | −0.437 | +0.066 | |||||
| ND6NADH dehydrogenase subunit 6 | 516 bp | 46.12% | −0.538 | +0.410 | |||||
| CYTBCytochrome b | 1,138 bp | 47.28% | −0.413 | +0.030 | |||||
| 12S rRNA12S ribosomal RNA | 985 bp | 49.24% | −0.146 | +0.292 | |||||
| 16S rRNA16S ribosomal RNA | 1,579 bp | 45.54% | −0.177 | +0.219 |
Codon usage
Counts per codon, darker is more frequent3,810 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F6.1%
UUU88
UUC143
Leu L17.5%
UUA84
UUG28
CUU111
CUC156
CUA221
CUG65
Ile I7.0%
AUU110
AUC158
Met M5.2%
AUA143
AUG55
Val V5.1%
GUU25
GUC64
GUA75
GUG29
Ser S7.7%
UCU33
UCC98
UCA82
UCG13
AGU12
AGC55
Pro P5.6%
CCU23
CCC105
CCA71
CCG16
Thr T9.0%
ACU55
ACC151
ACA126
ACG12
Ala A8.0%
GCU45
GCC156
GCA91
GCG14
Tyr Y2.8%
UAU34
UAC74
His H2.7%
CAU15
CAC87
Gln Q2.6%
CAA81
CAG17
Asn N3.2%
AAU24
AAC99
Lys K2.5%
AAA85
AAG9
Asp D1.9%
GAU18
GAC54
Glu E2.3%
GAA61
GAG25
Cys C0.9%
UGU13
UGC20
Trp W2.7%
UGA77
UGG24
Arg R1.8%
CGU9
CGC18
CGA32
CGG9
Gly G5.3%
GGU17
GGC66
GGA77
GGG42
Stop 0.3%
UAA4
UAG3
AGA3
AGG0
Genome map
38 annotated features in NC_004448.1Hover, 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 (46.0%, 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 | 985 | 985 bp | + | 49.2% |
| tRNA-Val | Transfer RNA | 986 | 1,051 | 66 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,052 | 2,630 | 1,579 bp | + | 45.5% |
| tRNA-Leu (UUR) | Transfer RNA | 2,631 | 2,705 | 75 bp | + | – |
| ND1 | Protein-coding gene | 2,706 | 3,671 | 966 bp | + | 47.0% |
| tRNA-Ile | Transfer RNA | 3,669 | 3,738 | 70 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,740 | 3,810 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,810 | 3,881 | 72 bp | + | – |
| ND2 | Protein-coding gene | 3,883 | 4,947 | 1,065 bp | + | 45.1% |
| tRNA-Trp | Transfer RNA | 4,944 | 5,018 | 75 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,023 | 5,088 | 66 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,091 | 5,163 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,168 | 5,233 | 66 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,234 | 5,310 | 77 bp | − | – |
| COX1 | Protein-coding gene | 5,307 | 6,884 | 1,578 bp | + | 47.3% |
| tRNA-Ser (UCN) | Transfer RNA | 6,876 | 6,953 | 78 bp | − | – |
| tRNA-Asp | Transfer RNA | 6,956 | 7,031 | 76 bp | + | – |
| COX2 | Protein-coding gene | 7,031 | 7,718 | 688 bp | + | 46.8% |
| tRNA-Lys | Transfer RNA | 7,719 | 7,796 | 78 bp | + | – |
| ATP8 | Protein-coding gene | 7,799 | 7,981 | 183 bp | + | 47.0% |
| ATP6 | Protein-coding gene | 7,951 | 8,634 | 684 bp | + | 45.2% |
| COX3 | Protein-coding gene | 8,634 | 9,417 | 784 bp | + | 48.9% |
| tRNA-Gly | Transfer RNA | 9,418 | 9,489 | 72 bp | + | – |
| ND3 | Protein-coding gene | 9,489 | 9,836 | 348 bp | + | 46.3% |
| tRNA-Arg | Transfer RNA | 9,846 | 9,917 | 72 bp | + | – |
| ND4L | Protein-coding gene | 9,914 | 10,210 | 297 bp | + | 44.8% |
| ND4 | Protein-coding gene | 10,204 | 11,577 | 1,374 bp | + | 46.1% |
| tRNA-Ser (AGY) | Transfer RNA | 11,617 | 11,682 | 66 bp | + | – |
| tRNA-His | Transfer RNA | 11,696 | 11,765 | 70 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,773 | 11,844 | 72 bp | + | – |
| ND5 | Protein-coding gene | 11,846 | 13,657 | 1,812 bp | + | 46.5% |
| ND6 | Protein-coding gene | 13,653 | 14,168 | 516 bp | − | 46.1% |
| tRNA-Glu | Transfer RNA | 14,169 | 14,237 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,240 | 15,377 | 1,138 bp | + | 47.3% |
| tRNA-Thr | Transfer RNA | 15,469 | 15,543 | 75 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,543 | 15,620 | 78 bp | − | – |
| tRNA-Phe | Transfer RNA | 15,633 | 15,701 | 69 bp | + | – |
| D-loop | Control region | 15,702 | 16,746 | 1,045 bp | – | – |