Boa constrictor
Boa constrictor
GC content
38.49%
Whole genome
Non-coding
3,732 bp
D-loop 3,632 bp
Where Boa constrictor sits among 2,335 species
Whole-genome GC content against maximum lifespan. Boa constrictor has the 248th longest lifespan of them.
- This species
- Other reptiles
- Other classes
Base composition
Whole genome18,905 bp
- GC skew (G − C) / (G + C)
- −0.349
- AT skew (A − T) / (A + T)
- +0.205
Life history
- Maximum lifespan
- 40.4 years
- Adult weight
- 3.5 kg
- Basal metabolic rate
- 0.359 W
- Body temperature
- 19.9 °C
- Female sexual maturity
- 3 years
- Male sexual maturity
- 3 years
- Gestation or incubation
- 125 days
- Litter or clutch size
- 35
Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 03293)
About this record
- Lifespan source
- AnAge build 15
- Based on
- an animal in captivity
- Data quality
- acceptable, large 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 genome18,905 bp
Protein-coding11,248 bp
12S rRNA926 bp
16S rRNA1,532 bp
All tRNA1,467 bp
D-loop3,632 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 967 bp | 40.33% | −0.421 | +0.220 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,030 bp | 39.42% | −0.478 | +0.304 | |||||
| COX1Cytochrome c oxidase subunit I | 1,546 bp | 42.69% | −0.233 | +0.072 | |||||
| COX2Cytochrome c oxidase subunit II | 687 bp | 43.96% | −0.172 | +0.210 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 26.79% | −0.289 | +0.350 | |||||
| ATP6ATP synthase F0 subunit 6 | 680 bp | 38.97% | −0.396 | +0.157 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 46.43% | −0.143 | +0.081 | |||||
| ND3NADH dehydrogenase subunit 3 | 343 bp | 41.40% | −0.380 | +0.114 | |||||
| ND4LNADH dehydrogenase subunit 4L | 290 bp | 35.52% | −0.515 | +0.219 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,356 bp | 38.27% | −0.468 | +0.183 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,791 bp | 37.35% | −0.447 | +0.292 | |||||
| ND6NADH dehydrogenase subunit 6 | 507 bp | 34.12% | −0.549 | +0.551 | |||||
| CYTBCytochrome b | 1,114 bp | 41.11% | −0.410 | +0.140 | |||||
| 12S rRNA12S ribosomal RNA | 926 bp | 43.20% | −0.155 | +0.407 | |||||
| 16S rRNA16S ribosomal RNA | 1,532 bp | 38.51% | −0.153 | +0.340 | |||||
| D-loopControl region (D-loop) | 3,632 bp | 31.58% | −0.531 | +0.111 |
Codon usage
Counts per codon, darker is more frequent3,751 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F5.8%
UUU70
UUC148
Leu L13.8%
UUA91
UUG24
CUU55
CUC43
CUA267
CUG39
Ile I8.3%
AUU101
AUC212
Met M8.4%
AUA264
AUG50
Val V4.7%
GUU39
GUC24
GUA90
GUG24
Ser S6.9%
UCU26
UCC24
UCA158
UCG9
AGU10
AGC33
Pro P5.2%
CCU16
CCC27
CCA139
CCG13
Thr T10.9%
ACU32
ACC112
ACA246
ACG17
Ala A6.4%
GCU19
GCC83
GCA133
GCG6
Tyr Y2.7%
UAU32
UAC69
His H2.7%
CAU22
CAC80
Gln Q2.6%
CAA79
CAG18
Asn N4.0%
AAU26
AAC124
Lys K2.9%
AAA95
AAG13
Asp D1.7%
GAU17
GAC46
Glu E2.4%
GAA71
GAG20
Cys C0.8%
UGU16
UGC13
Trp W2.6%
UGA79
UGG20
Arg R1.7%
CGU8
CGC4
CGA44
CGG7
Gly G5.3%
GGU35
GGC23
GGA99
GGG42
Stop 0.1%
UAA3
UAG0
AGA0
AGG2
Genome map
39 annotated features in NC_007398.1Hover, 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-loop2
- Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
- Middle ring: GC% of each gene against the whole genome (38.5%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 39 features as a table
| Feature | Type | Start | End | Length | Strand | GC |
|---|---|---|---|---|---|---|
| tRNA-Phe | Transfer RNA | 1 | 67 | 67 bp | + | – |
| 12S rRNA | Ribosomal RNA | 68 | 993 | 926 bp | + | 43.2% |
| tRNA-Val | Transfer RNA | 994 | 1,058 | 65 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,059 | 2,590 | 1,532 bp | + | 38.5% |
| ND1 | Protein-coding gene | 2,591 | 3,557 | 967 bp | + | 40.3% |
| tRNA-Ile | Transfer RNA | 3,558 | 3,627 | 70 bp | + | – |
| D-loop | Control region | 3,628 | 5,381 | 1,754 bp | – | 31.6% |
| tRNA-Leu (UUR) | Transfer RNA | 5,382 | 5,454 | 73 bp | + | – |
| tRNA-Gln | Transfer RNA | 5,455 | 5,526 | 72 bp | − | – |
| tRNA-Met | Transfer RNA | 5,532 | 5,594 | 63 bp | + | – |
| ND2 | Protein-coding gene | 5,595 | 6,624 | 1,030 bp | + | 39.4% |
| tRNA-Trp | Transfer RNA | 6,625 | 6,691 | 67 bp | + | – |
| tRNA-Ala | Transfer RNA | 6,693 | 6,756 | 64 bp | − | – |
| tRNA-Asn | Transfer RNA | 6,760 | 6,832 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 6,863 | 6,923 | 61 bp | − | – |
| tRNA-Tyr | Transfer RNA | 6,924 | 6,990 | 67 bp | − | – |
| COX1 | Protein-coding gene | 6,992 | 8,537 | 1,546 bp | + | 42.7% |
| tRNA-Ser (UCN) | Transfer RNA | 8,584 | 8,651 | 68 bp | − | – |
| tRNA-Asp | Transfer RNA | 8,652 | 8,716 | 65 bp | + | – |
| COX2 | Protein-coding gene | 8,717 | 9,403 | 687 bp | + | 44.0% |
| tRNA-Lys | Transfer RNA | 9,409 | 9,474 | 66 bp | + | – |
| ATP8 | Protein-coding gene | 9,475 | 9,642 | 168 bp | + | 26.8% |
| ATP6 | Protein-coding gene | 9,633 | 10,312 | 680 bp | + | 39.0% |
| COX3 | Protein-coding gene | 10,313 | 11,096 | 784 bp | + | 46.4% |
| tRNA-Gly | Transfer RNA | 11,097 | 11,160 | 64 bp | + | – |
| ND3 | Protein-coding gene | 11,161 | 11,503 | 343 bp | + | 41.4% |
| tRNA-Arg | Transfer RNA | 11,504 | 11,570 | 67 bp | + | – |
| ND4L | Protein-coding gene | 11,571 | 11,860 | 290 bp | + | 35.5% |
| ND4 | Protein-coding gene | 11,861 | 13,216 | 1,356 bp | + | 38.3% |
| tRNA-His | Transfer RNA | 13,217 | 13,282 | 66 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 13,283 | 13,340 | 58 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 13,341 | 13,411 | 71 bp | + | – |
| ND5 | Protein-coding gene | 13,412 | 15,202 | 1,791 bp | + | 37.4% |
| ND6 | Protein-coding gene | 15,198 | 15,704 | 507 bp | − | 34.1% |
| tRNA-Glu | Transfer RNA | 15,714 | 15,780 | 67 bp | − | – |
| CYTB | Protein-coding gene | 15,781 | 16,894 | 1,114 bp | + | 41.1% |
| tRNA-Thr | Transfer RNA | 16,895 | 16,961 | 67 bp | + | – |
| tRNA-Pro | Transfer RNA | 16,962 | 17,027 | 66 bp | − | – |
| D-loop | Control region | 17,028 | 18,905 | 1,878 bp | – | 31.6% |