Mactra chinensis
Sunray surf clam
GC content
36.27%
Whole genome
Non-coding
2,231 bp
Including the D-loop
Where Sunray surf clam sits among 2,335 species
Whole-genome GC content against maximum lifespan. Sunray surf clam has the 1,445th longest lifespan of them.
- This species
- All other species
Base composition
Whole genome17,285 bp
- GC skew (G − C) / (G + C)
- +0.258
- AT skew (A − T) / (A + T)
- −0.224
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 genome17,285 bp
Protein-coding11,630 bp
12S rRNA882 bp
16S rRNA1,152 bp
All tRNA1,390 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 882 bp | 38.21% | +0.359 | −0.347 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,026 bp | 33.53% | +0.203 | −0.337 | |||||
| COX1Cytochrome c oxidase subunit I | 1,581 bp | 37.57% | +0.168 | −0.311 | |||||
| COX2Cytochrome c oxidase subunit II | 981 bp | 35.58% | +0.404 | −0.203 | |||||
| ATP6ATP synthase F0 subunit 6 | 739 bp | 34.91% | +0.302 | −0.310 | |||||
| COX3Cytochrome c oxidase subunit III | 891 bp | 39.39% | +0.259 | −0.278 | |||||
| ND3NADH dehydrogenase subunit 3 | 366 bp | 35.34% | +0.163 | −0.415 | |||||
| ND4LNADH dehydrogenase subunit 4L | 289 bp | 33.56% | +0.381 | −0.531 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,325 bp | 38.57% | +0.186 | −0.310 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,788 bp | 36.63% | +0.292 | −0.349 | |||||
| ND6NADH dehydrogenase subunit 6 | 472 bp | 34.32% | +0.346 | −0.368 | |||||
| CYTBCytochrome b | 1,290 bp | 35.74% | +0.137 | −0.247 | |||||
| 12S rRNA12S ribosomal RNA | 882 bp | 35.94% | +0.243 | −0.009 | |||||
| 16S rRNA16S ribosomal RNA | 1,152 bp | 33.59% | +0.271 | −0.001 |
Codon usage
Counts per codon, darker is more frequent3,874 codons in all protein-coding genes. Grouped with the Invertebrate mitochondrial code (NCBI table 5).
Phe F11.3%
UUU350
UUC86
Leu L13.8%
UUA214
UUG106
CUU118
CUC16
CUA53
CUG28
Ile I5.5%
AUU181
AUC32
Met M5.0%
AUA101
AUG92
Val V9.6%
GUU151
GUC29
GUA105
GUG85
Ser S10.8%
UCU129
UCC32
UCA28
UCG14
AGU51
AGC13
AGA69
AGG83
Pro P3.2%
CCU78
CCC8
CCA20
CCG19
Thr T3.0%
ACU69
ACC13
ACA28
ACG8
Ala A4.6%
GCU104
GCC28
GCA31
GCG17
Tyr Y4.0%
UAU114
UAC40
His H1.8%
CAU46
CAC22
Gln Q1.4%
CAA24
CAG30
Asn N2.9%
AAU80
AAC34
Lys K2.7%
AAA48
AAG56
Asp D2.5%
GAU72
GAC23
Glu E2.6%
GAA27
GAG74
Cys C2.4%
UGU69
UGC25
Trp W2.8%
UGA46
UGG62
Arg R2.0%
CGU33
CGC6
CGA21
CGG19
Gly G7.9%
GGU130
GGC18
GGA53
GGG105
Stop 0.2%
UAA5
UAG3
Genome map
35 annotated features in NC_025510.1Hover, 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
- tRNA21
- Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
- Middle ring: GC% of each gene against the whole genome (36.3%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 35 features as a table
| Feature | Type | Start | End | Length | Strand | GC |
|---|---|---|---|---|---|---|
| COX1 | Protein-coding gene | 1 | 1,581 | 1,581 bp | + | 37.6% |
| tRNA-Val | Transfer RNA | 1,597 | 1,659 | 63 bp | + | – |
| tRNA-Trp | Transfer RNA | 1,665 | 1,728 | 64 bp | + | – |
| ND6 | Protein-coding gene | 1,730 | 2,201 | 472 bp | + | 34.3% |
| tRNA-Gln | Transfer RNA | 2,202 | 2,268 | 67 bp | + | – |
| tRNA-Thr | Transfer RNA | 3,344 | 3,406 | 63 bp | + | – |
| ND1 | Protein-coding gene | 3,475 | 4,356 | 882 bp | + | 38.2% |
| tRNA-Gly | Transfer RNA | 4,360 | 4,421 | 62 bp | + | – |
| ND2 | Protein-coding gene | 4,424 | 5,449 | 1,026 bp | + | 33.5% |
| tRNA-Asp | Transfer RNA | 5,457 | 5,518 | 62 bp | + | – |
| tRNA-Pro | Transfer RNA | 5,522 | 5,583 | 62 bp | + | – |
| 12S rRNA | Ribosomal RNA | 5,584 | 6,465 | 882 bp | + | 35.9% |
| tRNA-Tyr | Transfer RNA | 6,466 | 6,529 | 64 bp | + | – |
| COX3 | Protein-coding gene | 6,595 | 7,485 | 891 bp | + | 39.4% |
| CYTB | Protein-coding gene | 7,503 | 8,792 | 1,290 bp | + | 35.7% |
| 16S rRNA | Ribosomal RNA | 8,793 | 9,944 | 1,152 bp | + | 33.6% |
| tRNA-Lys | Transfer RNA | 9,945 | 10,028 | 84 bp | + | – |
| ND4 | Protein-coding gene | 10,147 | 11,471 | 1,325 bp | + | 38.6% |
| tRNA-His | Transfer RNA | 11,472 | 11,535 | 64 bp | + | – |
| tRNA-Arg | Transfer RNA | 12,235 | 12,296 | 62 bp | + | – |
| tRNA-Leu | Transfer RNA | 12,312 | 12,378 | 67 bp | + | – |
| tRNA-Glu | Transfer RNA | 12,379 | 12,466 | 88 bp | + | – |
| ATP6 | Protein-coding gene | 12,502 | 13,240 | 739 bp | + | 34.9% |
| ND3 | Protein-coding gene | 13,245 | 13,610 | 366 bp | + | 35.3% |
| tRNA-Lys | Transfer RNA | 13,611 | 13,677 | 67 bp | + | – |
| tRNA-Ile | Transfer RNA | 13,700 | 13,765 | 66 bp | + | – |
| ND5 | Protein-coding gene | 13,766 | 15,553 | 1,788 bp | + | 36.6% |
| COX2 | Protein-coding gene | 15,595 | 16,575 | 981 bp | + | 35.6% |
| ND4L | Protein-coding gene | 16,579 | 16,867 | 289 bp | + | 33.6% |
| tRNA-Asn | Transfer RNA | 16,868 | 16,933 | 66 bp | + | – |
| tRNA-Leu | Transfer RNA | 16,936 | 17,001 | 66 bp | + | – |
| tRNA-Cys | Transfer RNA | 17,006 | 17,067 | 62 bp | + | – |
| tRNA-Met | Transfer RNA | 17,071 | 17,133 | 63 bp | + | – |
| tRNA-Phe | Transfer RNA | 17,134 | 17,197 | 64 bp | + | – |
| tRNA-Ala | Transfer RNA | 17,198 | 17,261 | 64 bp | + | – |