Mya arenaria
Softshell
GC content
34.30%
Whole genome
Non-coding
1,910 bp
D-loop 845 bp
Where Softshell sits among 2,335 species
Whole-genome GC content against maximum lifespan. Softshell has the 519th longest lifespan of them.
- This species
- All other species
Base composition
Whole genome17,947 bp
- GC skew (G − C) / (G + C)
- +0.316
- AT skew (A − T) / (A + T)
- −0.131
About this record
- Lifespan source
- AnAge build 15
- Based on
- an animal in the wild
- 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 genome17,947 bp
Protein-coding12,135 bp
12S rRNA993 bp
16S rRNA1,396 bp
All tRNA1,578 bp
D-loop845 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 912 bp | 37.28% | +0.265 | −0.259 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,065 bp | 34.84% | +0.412 | −0.231 | |||||
| COX1Cytochrome c oxidase subunit I | 1,755 bp | 37.21% | +0.243 | −0.201 | |||||
| COX2Cytochrome c oxidase subunit II | 1,434 bp | 35.64% | +0.362 | −0.036 | |||||
| ATP6ATP synthase F0 subunit 6 | 729 bp | 33.33% | +0.424 | −0.280 | |||||
| COX3Cytochrome c oxidase subunit III | 861 bp | 37.28% | +0.296 | −0.207 | |||||
| ND3NADH dehydrogenase subunit 3 | 423 bp | 32.15% | +0.471 | −0.143 | |||||
| ND4LNADH dehydrogenase subunit 4L | 384 bp | 29.69% | +0.316 | −0.244 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,365 bp | 37.66% | +0.346 | −0.196 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,518 bp | 34.45% | +0.338 | −0.214 | |||||
| ND6NADH dehydrogenase subunit 6 | 546 bp | 34.25% | +0.455 | −0.259 | |||||
| CYTBCytochrome b | 1,143 bp | 34.82% | +0.221 | −0.240 | |||||
| 12S rRNA12S ribosomal RNA | 993 bp | 33.54% | +0.231 | +0.048 | |||||
| 16S rRNA16S ribosomal RNA | 1,396 bp | 31.81% | +0.297 | −0.008 | |||||
| D-loopControl region (D-loop) | 845 bp | 29.94% | +0.328 | +0.179 |
Codon usage
Counts per codon, darker is more frequent4,045 codons in all protein-coding genes. Grouped with the Invertebrate mitochondrial code (NCBI table 5).
Phe F9.5%
UUU307
UUC77
Leu L13.2%
UUA267
UUG100
CUU79
CUC13
CUA45
CUG31
Ile I4.9%
AUU169
AUC29
Met M5.7%
AUA168
AUG61
Val V9.9%
GUU159
GUC27
GUA115
GUG99
Ser S10.9%
UCU102
UCC17
UCA54
UCG15
AGU60
AGC14
AGA107
AGG72
Pro P3.0%
CCU67
CCC9
CCA32
CCG12
Thr T3.2%
ACU63
ACC10
ACA40
ACG17
Ala A4.2%
GCU88
GCC12
GCA43
GCG28
Tyr Y4.1%
UAU124
UAC42
His H1.7%
CAU47
CAC23
Gln Q1.4%
CAA30
CAG28
Asn N2.5%
AAU75
AAC26
Lys K3.6%
AAA97
AAG49
Asp D2.1%
GAU60
GAC23
Glu E3.4%
GAA70
GAG68
Cys C2.1%
UGU72
UGC14
Trp W3.0%
UGA71
UGG51
Arg R1.8%
CGU36
CGC0
CGA24
CGG12
Gly G9.5%
GGU118
GGC16
GGA124
GGG125
Stop 0.3%
UAA9
UAG3
Genome map
39 annotated features in NC_024738.1Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.
- Protein-coding12
- rRNA2
- tRNA24
- D-loop1
- Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
- Middle ring: GC% of each gene against the whole genome (34.3%, 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 |
|---|---|---|---|---|---|---|
| COX1 | Protein-coding gene | 1 | 1,755 | 1,755 bp | + | 37.2% |
| tRNA-Asn | Transfer RNA | 1,758 | 1,823 | 66 bp | + | – |
| ND4 | Protein-coding gene | 1,965 | 3,329 | 1,365 bp | + | 37.7% |
| tRNA-Tyr | Transfer RNA | 3,332 | 3,396 | 65 bp | + | – |
| tRNA-Ser (UCN) | Transfer RNA | 3,391 | 3,458 | 68 bp | + | – |
| ND1 | Protein-coding gene | 3,465 | 4,376 | 912 bp | + | 37.3% |
| CYTB | Protein-coding gene | 4,473 | 5,615 | 1,143 bp | + | 34.8% |
| tRNA-Gly | Transfer RNA | 5,628 | 5,694 | 67 bp | + | – |
| 16S rRNA | Ribosomal RNA | 5,695 | 7,090 | 1,396 bp | + | 31.8% |
| ATP6 | Protein-coding gene | 7,091 | 7,819 | 729 bp | + | 33.3% |
| tRNA-Trp | Transfer RNA | 7,824 | 7,891 | 68 bp | + | – |
| tRNA-Ile | Transfer RNA | 7,896 | 7,961 | 66 bp | + | – |
| tRNA-Cys | Transfer RNA | 7,962 | 8,024 | 63 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 8,024 | 8,091 | 68 bp | + | – |
| tRNA-Val | Transfer RNA | 8,090 | 8,154 | 65 bp | + | – |
| tRNA-Thr | Transfer RNA | 8,189 | 8,254 | 66 bp | + | – |
| ND5 | Protein-coding gene | 8,449 | 9,966 | 1,518 bp | + | 34.5% |
| tRNA-Arg | Transfer RNA | 9,973 | 10,037 | 65 bp | + | – |
| COX3 | Protein-coding gene | 10,038 | 10,898 | 861 bp | + | 37.3% |
| ND6 | Protein-coding gene | 10,936 | 11,481 | 546 bp | + | 34.3% |
| tRNA-Asp | Transfer RNA | 11,496 | 11,565 | 70 bp | + | – |
| tRNA-His | Transfer RNA | 11,609 | 11,673 | 65 bp | + | – |
| tRNA-Met | Transfer RNA | 11,672 | 11,739 | 68 bp | + | – |
| tRNA-Pro | Transfer RNA | 11,803 | 11,869 | 67 bp | + | – |
| tRNA-Met | Transfer RNA | 12,048 | 12,116 | 69 bp | + | – |
| D-loop | Control region | 12,117 | 12,961 | 845 bp | – | 29.9% |
| COX2 | Protein-coding gene | 12,962 | 14,395 | 1,434 bp | + | 35.6% |
| tRNA-Phe | Transfer RNA | 14,469 | 14,532 | 64 bp | + | – |
| ND4L | Protein-coding gene | 14,572 | 14,955 | 384 bp | + | 29.7% |
| ND2 | Protein-coding gene | 14,957 | 16,021 | 1,065 bp | + | 34.8% |
| tRNA-Gln | Transfer RNA | 16,028 | 16,093 | 66 bp | + | – |
| tRNA-Glu | Transfer RNA | 16,129 | 16,194 | 66 bp | + | – |
| ND3 | Protein-coding gene | 16,195 | 16,617 | 423 bp | + | 32.2% |
| tRNA-Lys | Transfer RNA | 16,639 | 16,703 | 65 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 16,698 | 16,769 | 72 bp | + | – |
| 12S rRNA | Ribosomal RNA | 16,770 | 17,762 | 993 bp | + | 33.5% |
| tRNA-Leu (UUR) | Transfer RNA | 16,935 | 16,999 | 65 bp | + | – |
| tRNA-Ala | Transfer RNA | 17,763 | 17,827 | 65 bp | + | – |
| tRNA-Leu (UUR) | Transfer RNA | 17,846 | 17,911 | 66 bp | + | – |