Callinectes sapidus
Blue crab
GC content
30.91%
Whole genome
Non-coding
1,553 bp
D-loop 1,435 bp
Where Blue crab sits among 2,335 species
Whole-genome GC content against maximum lifespan. Blue crab has the 2,189th longest lifespan of them.
- This species
- All other species
Base composition
Whole genome16,263 bp
- GC skew (G − C) / (G + C)
- −0.279
- AT skew (A − T) / (A + T)
- −0.011
About this record
- Lifespan source
- SeaLifeBase v26.06
- Based on
- an animal in the wild
- Data quality
- acceptable
- Licence
- CC BY-NC 4.0
- Status
- New in build 2
- In the database since
- build 2 (2026-11-13)
The lifespan value is for non-commercial use only; the genome data is not restricted by it.
Every change against the 2015 build is in the changelog download.
Composition by region
Reference (L) strand as deposited in RefSeqWhole genome16,263 bp
Protein-coding11,144 bp
12S rRNA785 bp
16S rRNA1,323 bp
All tRNA1,462 bp
D-loop1,435 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 939 bp | 30.88% | −0.338 | +0.267 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,008 bp | 32.44% | −0.437 | −0.198 | |||||
| COX1Cytochrome c oxidase subunit I | 1,534 bp | 37.88% | −0.170 | −0.125 | |||||
| COX2Cytochrome c oxidase subunit II | 685 bp | 35.47% | −0.210 | −0.045 | |||||
| ATP8ATP synthase F0 subunit 8 | 162 bp | 28.40% | −0.478 | −0.138 | |||||
| ATP6ATP synthase F0 subunit 6 | 675 bp | 34.07% | −0.252 | −0.178 | |||||
| COX3Cytochrome c oxidase subunit III | 792 bp | 37.12% | −0.204 | −0.137 | |||||
| ND3NADH dehydrogenase subunit 3 | 354 bp | 33.90% | −0.200 | −0.171 | |||||
| ND4LNADH dehydrogenase subunit 4L | 303 bp | 29.70% | −0.422 | +0.230 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,335 bp | 27.94% | −0.389 | +0.183 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,728 bp | 31.37% | −0.306 | +0.155 | |||||
| ND6NADH dehydrogenase subunit 6 | 507 bp | 32.15% | −0.485 | −0.203 | |||||
| CYTBCytochrome b | 1,135 bp | 32.86% | −0.217 | −0.160 | |||||
| 12S rRNA12S ribosomal RNA | 785 bp | 29.68% | −0.305 | −0.036 | |||||
| 16S rRNA16S ribosomal RNA | 1,323 bp | 28.19% | −0.244 | −0.034 | |||||
| D-loopControl region (D-loop) | 1,435 bp | 21.74% | −0.372 | +0.038 |
Codon usage
Counts per codon, darker is more frequent3,718 codons in all protein-coding genes. Grouped with the Invertebrate mitochondrial code (NCBI table 5).
Phe F8.3%
UUU204
UUC106
Leu L15.1%
UUA248
UUG58
CUU98
CUC37
CUA101
CUG19
Ile I8.5%
AUU258
AUC59
Met M6.3%
AUA172
AUG61
Val V6.9%
GUU106
GUC21
GUA101
GUG27
Ser S10.9%
UCU123
UCC33
UCA84
UCG9
AGU37
AGC6
AGA90
AGG24
Pro P3.9%
CCU80
CCC31
CCA30
CCG3
Thr T5.0%
ACU104
ACC31
ACA51
ACG1
Ala A5.3%
GCU113
GCC32
GCA48
GCG5
Tyr Y4.1%
UAU113
UAC39
His H2.1%
CAU47
CAC30
Gln Q1.8%
CAA49
CAG18
Asn N3.6%
AAU84
AAC48
Lys K2.3%
AAA64
AAG22
Asp D1.9%
GAU41
GAC29
Glu E2.3%
GAA59
GAG27
Cys C1.1%
UGU28
UGC13
Trp W2.7%
UGA89
UGG11
Arg R1.5%
CGU19
CGC3
CGA28
CGG6
Gly G6.2%
GGU66
GGC26
GGA103
GGG35
Stop 0.3%
UAA8
UAG2
Genome map
38 annotated features in NC_006281.1Hover, 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 (30.9%, 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 |
|---|---|---|---|---|---|---|
| tRNA-Met | Transfer RNA | 1 | 69 | 69 bp | + | – |
| ND2 | Protein-coding gene | 70 | 1,077 | 1,008 bp | + | 32.4% |
| tRNA-Trp | Transfer RNA | 1,076 | 1,142 | 67 bp | + | – |
| tRNA-Cys | Transfer RNA | 1,142 | 1,209 | 68 bp | − | – |
| tRNA-Tyr | Transfer RNA | 1,210 | 1,275 | 66 bp | − | – |
| COX1 | Protein-coding gene | 1,276 | 2,809 | 1,534 bp | + | 37.9% |
| tRNA-Leu (UUR) | Transfer RNA | 2,810 | 2,874 | 65 bp | + | – |
| COX2 | Protein-coding gene | 2,888 | 3,572 | 685 bp | + | 35.5% |
| tRNA-Lys | Transfer RNA | 3,573 | 3,640 | 68 bp | + | – |
| tRNA-Asp | Transfer RNA | 3,641 | 3,705 | 65 bp | + | – |
| ATP8 | Protein-coding gene | 3,706 | 3,867 | 162 bp | + | 28.4% |
| ATP6 | Protein-coding gene | 3,864 | 4,538 | 675 bp | + | 34.1% |
| COX3 | Protein-coding gene | 4,538 | 5,329 | 792 bp | + | 37.1% |
| tRNA-Gly | Transfer RNA | 5,329 | 5,391 | 63 bp | + | – |
| ND3 | Protein-coding gene | 5,392 | 5,745 | 354 bp | + | 33.9% |
| tRNA-Ala | Transfer RNA | 5,749 | 5,812 | 64 bp | + | – |
| tRNA-Arg | Transfer RNA | 5,816 | 5,878 | 63 bp | + | – |
| tRNA-Asn | Transfer RNA | 5,880 | 5,947 | 68 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 5,950 | 6,016 | 67 bp | + | – |
| tRNA-Glu | Transfer RNA | 6,017 | 6,084 | 68 bp | + | – |
| tRNA-His | Transfer RNA | 6,104 | 6,166 | 63 bp | − | – |
| tRNA-Phe | Transfer RNA | 6,168 | 6,232 | 65 bp | − | – |
| ND5 | Protein-coding gene | 6,232 | 7,959 | 1,728 bp | − | 31.4% |
| ND4 | Protein-coding gene | 7,976 | 9,310 | 1,335 bp | − | 27.9% |
| ND4L | Protein-coding gene | 9,304 | 9,606 | 303 bp | − | 29.7% |
| tRNA-Thr | Transfer RNA | 9,609 | 9,673 | 65 bp | + | – |
| tRNA-Pro | Transfer RNA | 9,674 | 9,739 | 66 bp | − | – |
| ND6 | Protein-coding gene | 9,742 | 10,248 | 507 bp | + | 32.2% |
| CYTB | Protein-coding gene | 10,248 | 11,382 | 1,135 bp | + | 32.9% |
| tRNA-Ser (UCN) | Transfer RNA | 11,383 | 11,449 | 67 bp | + | – |
| ND1 | Protein-coding gene | 11,483 | 12,421 | 939 bp | − | 30.9% |
| tRNA-Leu (CUN) | Transfer RNA | 12,444 | 12,512 | 69 bp | − | – |
| 16S rRNA | Ribosomal RNA | 12,513 | 13,835 | 1,323 bp | − | 28.2% |
| tRNA-Val | Transfer RNA | 13,836 | 13,908 | 73 bp | − | – |
| 12S rRNA | Ribosomal RNA | 13,909 | 14,693 | 785 bp | − | 29.7% |
| D-loop | Control region | 14,694 | 16,128 | 1,435 bp | – | 21.7% |
| tRNA-Ile | Transfer RNA | 16,129 | 16,196 | 68 bp | + | – |
| tRNA-Gln | Transfer RNA | 16,194 | 16,262 | 69 bp | − | – |