Littorina saxatilis
Rough periwinkle
GC content
33.06%
Whole genome
Non-coding
1,884 bp
D-loop 1,549 bp
Where Rough periwinkle sits among 2,335 species
Whole-genome GC content against maximum lifespan. Rough periwinkle has the 2,191st longest lifespan of them.
- This species
- All other species
Base composition
Whole genome16,887 bp
- GC skew (G − C) / (G + C)
- −0.145
- AT skew (A − T) / (A + T)
- −0.091
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 genome16,887 bp
Protein-coding11,242 bp
12S rRNA895 bp
16S rRNA1,415 bp
All tRNA1,486 bp
D-loop1,549 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 939 bp | 33.76% | −0.123 | −0.196 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,059 bp | 32.11% | −0.141 | −0.179 | |||||
| COX1Cytochrome c oxidase subunit I | 1,536 bp | 36.78% | −0.041 | −0.186 | |||||
| COX2Cytochrome c oxidase subunit II | 687 bp | 35.66% | −0.061 | −0.091 | |||||
| ATP8ATP synthase F0 subunit 8 | 159 bp | 29.56% | −0.277 | −0.089 | |||||
| ATP6ATP synthase F0 subunit 6 | 696 bp | 35.06% | −0.172 | −0.221 | |||||
| COX3Cytochrome c oxidase subunit III | 780 bp | 37.82% | −0.024 | −0.208 | |||||
| ND3NADH dehydrogenase subunit 3 | 353 bp | 34.56% | −0.016 | −0.203 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 33.33% | −0.172 | −0.111 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,371 bp | 33.84% | −0.228 | −0.142 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,719 bp | 34.50% | −0.275 | −0.114 | |||||
| ND6NADH dehydrogenase subunit 6 | 513 bp | 35.67% | −0.180 | −0.206 | |||||
| CYTBCytochrome b | 1,140 bp | 36.67% | −0.172 | −0.202 | |||||
| 12S rRNA12S ribosomal RNA | 895 bp | 33.07% | +0.054 | +0.085 | |||||
| 16S rRNA16S ribosomal RNA | 1,415 bp | 29.33% | +0.027 | +0.028 | |||||
| D-loopControl region (D-loop) | 1,549 bp | 24.86% | −0.574 | +0.096 |
Codon usage
Counts per codon, darker is more frequent3,749 codons in all protein-coding genes. Grouped with the Invertebrate mitochondrial code (NCBI table 5).
Phe F8.6%
UUU223
UUC101
Leu L15.9%
UUA243
UUG23
CUU151
CUC60
CUA108
CUG10
Ile I7.7%
AUU228
AUC62
Met M5.0%
AUA158
AUG29
Val V6.3%
GUU108
GUC34
GUA88
GUG6
Ser S10.0%
UCU99
UCC62
UCA63
UCG10
AGU44
AGC39
AGA50
AGG8
Pro P4.1%
CCU87
CCC20
CCA41
CCG4
Thr T4.7%
ACU73
ACC38
ACA59
ACG5
Ala A7.0%
GCU130
GCC61
GCA64
GCG8
Tyr Y3.9%
UAU100
UAC45
His H2.2%
CAU46
CAC36
Gln Q2.2%
CAA74
CAG9
Asn N3.3%
AAU81
AAC43
Lys K2.5%
AAA83
AAG12
Asp D1.9%
GAU33
GAC39
Glu E2.4%
GAA81
GAG9
Cys C1.0%
UGU14
UGC22
Trp W3.0%
UGA95
UGG16
Arg R1.6%
CGU16
CGC9
CGA33
CGG2
Gly G6.5%
GGU76
GGC55
GGA84
GGG27
Stop 0.3%
UAA7
UAG5
Genome map
38 annotated features in NC_030595.1Hover, 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 (33.1%, 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 |
|---|---|---|---|---|---|---|
| COX1 | Protein-coding gene | 1 | 1,536 | 1,536 bp | + | 36.8% |
| COX2 | Protein-coding gene | 1,567 | 2,253 | 687 bp | + | 35.7% |
| tRNA-Asp | Transfer RNA | 2,256 | 2,324 | 69 bp | + | – |
| ATP8 | Protein-coding gene | 2,326 | 2,484 | 159 bp | + | 29.6% |
| ATP6 | Protein-coding gene | 2,498 | 3,193 | 696 bp | + | 35.1% |
| tRNA-Met | Transfer RNA | 3,225 | 3,292 | 68 bp | − | – |
| tRNA-Tyr | Transfer RNA | 3,294 | 3,361 | 68 bp | − | – |
| tRNA-Cys | Transfer RNA | 3,373 | 3,437 | 65 bp | − | – |
| tRNA-Trp | Transfer RNA | 3,439 | 3,504 | 66 bp | − | – |
| tRNA-Gln | Transfer RNA | 3,506 | 3,563 | 58 bp | − | – |
| tRNA-Gly | Transfer RNA | 3,575 | 3,641 | 67 bp | − | – |
| tRNA-Glu | Transfer RNA | 3,641 | 3,711 | 71 bp | − | – |
| 12S rRNA | Ribosomal RNA | 3,784 | 4,678 | 895 bp | + | 33.1% |
| tRNA-Val | Transfer RNA | 4,676 | 4,743 | 68 bp | + | – |
| 16S rRNA | Ribosomal RNA | 4,722 | 6,136 | 1,415 bp | + | 29.3% |
| tRNA-Leu | Transfer RNA | 6,127 | 6,193 | 67 bp | + | – |
| tRNA-Leu | Transfer RNA | 6,202 | 6,268 | 67 bp | + | – |
| ND1 | Protein-coding gene | 6,269 | 7,207 | 939 bp | + | 33.8% |
| tRNA-Pro | Transfer RNA | 7,215 | 7,282 | 68 bp | + | – |
| ND6 | Protein-coding gene | 7,285 | 7,797 | 513 bp | + | 35.7% |
| CYTB | Protein-coding gene | 7,807 | 8,946 | 1,140 bp | + | 36.7% |
| tRNA-Ser | Transfer RNA | 8,964 | 9,031 | 68 bp | + | – |
| tRNA-Thr | Transfer RNA | 9,037 | 9,106 | 70 bp | − | – |
| ND4L | Protein-coding gene | 9,115 | 9,411 | 297 bp | + | 33.3% |
| ND4 | Protein-coding gene | 9,405 | 10,775 | 1,371 bp | + | 33.8% |
| tRNA-His | Transfer RNA | 10,785 | 10,850 | 66 bp | + | – |
| ND5 | Protein-coding gene | 10,852 | 12,570 | 1,719 bp | + | 34.5% |
| tRNA-Phe | Transfer RNA | 12,594 | 12,662 | 69 bp | + | – |
| D-loop | Control region | 12,663 | 14,211 | 1,549 bp | – | 24.9% |
| COX3 | Protein-coding gene | 14,212 | 14,991 | 780 bp | + | 37.8% |
| tRNA-Lys | Transfer RNA | 15,025 | 15,097 | 73 bp | + | – |
| tRNA-Ala | Transfer RNA | 15,109 | 15,175 | 67 bp | + | – |
| tRNA-Arg | Transfer RNA | 15,177 | 15,245 | 69 bp | + | – |
| tRNA-Asn | Transfer RNA | 15,251 | 15,317 | 67 bp | + | – |
| tRNA-Ile | Transfer RNA | 15,331 | 15,399 | 69 bp | + | – |
| ND3 | Protein-coding gene | 15,404 | 15,756 | 353 bp | + | 34.6% |
| tRNA-Ser | Transfer RNA | 15,757 | 15,823 | 67 bp | + | – |
| ND2 | Protein-coding gene | 15,824 | 16,882 | 1,059 bp | + | 32.1% |