Modiolus modiolus
Northern horsemussel
GC content
35.79%
Whole genome
Non-coding
1,554 bp
Including the D-loop
Where Northern horsemussel sits among 2,335 species
Whole-genome GC content against maximum lifespan. Northern horsemussel has the 168th longest lifespan of them.
- This species
- All other species
Base composition
Whole genome15,816 bp
- GC skew (G − C) / (G + C)
- +0.339
- AT skew (A − T) / (A + T)
- −0.217
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 genome15,816 bp
Protein-coding10,868 bp
12S rRNA776 bp
16S rRNA1,270 bp
All tRNA1,433 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 819 bp | 38.58% | +0.278 | −0.221 | |||||
| ND2NADH dehydrogenase subunit 2 | 972 bp | 36.42% | +0.463 | −0.265 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 38.94% | +0.232 | −0.280 | |||||
| COX2Cytochrome c oxidase subunit II | 705 bp | 36.88% | +0.308 | −0.169 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 30.36% | +0.255 | −0.350 | |||||
| ATP6ATP synthase F0 subunit 6 | 741 bp | 34.68% | +0.385 | −0.293 | |||||
| COX3Cytochrome c oxidase subunit III | 775 bp | 37.81% | +0.290 | −0.382 | |||||
| ND3NADH dehydrogenase subunit 3 | 399 bp | 36.34% | +0.545 | −0.307 | |||||
| ND4LNADH dehydrogenase subunit 4L | 277 bp | 36.10% | +0.280 | −0.322 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,303 bp | 36.38% | +0.435 | −0.310 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,695 bp | 34.75% | +0.314 | −0.242 | |||||
| ND6NADH dehydrogenase subunit 6 | 492 bp | 31.91% | +0.503 | −0.415 | |||||
| CYTBCytochrome b | 1,140 bp | 36.40% | +0.243 | −0.255 | |||||
| 12S rRNA12S ribosomal RNA | 776 bp | 37.89% | +0.313 | −0.033 | |||||
| 16S rRNA16S ribosomal RNA | 1,270 bp | 33.70% | +0.238 | −0.083 |
Codon usage
Counts per codon, darker is more frequent3,678 codons in all protein-coding genes. Grouped with the Invertebrate mitochondrial code (NCBI table 5).
Phe F8.5%
UUU274
UUC37
Leu L15.1%
UUA239
UUG154
CUU101
CUC10
CUA29
CUG24
Ile I5.4%
AUU172
AUC25
Met M5.2%
AUA102
AUG89
Val V11.1%
GUU174
GUC21
GUA117
GUG95
Ser S10.9%
UCU99
UCC20
UCA34
UCG20
AGU72
AGC13
AGA66
AGG78
Pro P3.2%
CCU62
CCC10
CCA35
CCG11
Thr T3.0%
ACU59
ACC12
ACA29
ACG9
Ala A4.4%
GCU83
GCC18
GCA39
GCG23
Tyr Y4.0%
UAU118
UAC28
His H2.0%
CAU62
CAC11
Gln Q1.5%
CAA33
CAG24
Asn N2.8%
AAU81
AAC22
Lys K2.4%
AAA61
AAG27
Asp D2.0%
GAU59
GAC15
Glu E2.6%
GAA38
GAG56
Cys C2.2%
UGU65
UGC15
Trp W2.6%
UGA44
UGG51
Arg R2.1%
CGU28
CGC7
CGA20
CGG21
Gly G8.9%
GGU111
GGC19
GGA74
GGG123
Stop 0.3%
UAA6
UAG4
Genome map
37 annotated features in NC_033537.1Hover, 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
- Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
- Middle ring: GC% of each gene against the whole genome (35.8%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 37 features as a table
| Feature | Type | Start | End | Length | Strand | GC |
|---|---|---|---|---|---|---|
| COX1 | Protein-coding gene | 1 | 1,551 | 1,551 bp | + | 38.9% |
| ND3 | Protein-coding gene | 1,636 | 2,034 | 399 bp | + | 36.3% |
| tRNA-Cys | Transfer RNA | 2,090 | 2,155 | 66 bp | + | – |
| tRNA-Leu | Transfer RNA | 2,964 | 3,027 | 64 bp | + | – |
| tRNA-Pro | Transfer RNA | 3,041 | 3,106 | 66 bp | + | – |
| tRNA-Glu | Transfer RNA | 3,104 | 3,170 | 67 bp | + | – |
| tRNA-Leu | Transfer RNA | 3,176 | 3,239 | 64 bp | + | – |
| tRNA-Arg | Transfer RNA | 3,434 | 3,498 | 65 bp | + | – |
| tRNA-Ser | Transfer RNA | 3,511 | 3,576 | 66 bp | + | – |
| tRNA-Met | Transfer RNA | 3,581 | 3,647 | 67 bp | + | – |
| tRNA-Lys | Transfer RNA | 3,656 | 3,721 | 66 bp | + | – |
| 12S rRNA | Ribosomal RNA | 3,732 | 4,507 | 776 bp | + | 37.9% |
| tRNA-Gln | Transfer RNA | 4,507 | 4,575 | 69 bp | + | – |
| ATP6 | Protein-coding gene | 4,612 | 5,352 | 741 bp | + | 34.7% |
| tRNA-Tyr | Transfer RNA | 5,381 | 5,444 | 64 bp | + | – |
| tRNA-Val | Transfer RNA | 5,453 | 5,516 | 64 bp | + | – |
| ND4 | Protein-coding gene | 5,517 | 6,819 | 1,303 bp | + | 36.4% |
| tRNA-Asn | Transfer RNA | 6,820 | 6,885 | 66 bp | + | – |
| COX3 | Protein-coding gene | 6,897 | 7,671 | 775 bp | + | 37.8% |
| tRNA-Phe | Transfer RNA | 7,672 | 7,736 | 65 bp | + | – |
| 16S rRNA | Ribosomal RNA | 7,711 | 8,980 | 1,270 bp | + | 33.7% |
| tRNA-Ser | Transfer RNA | 8,920 | 8,977 | 58 bp | + | – |
| tRNA-Asp | Transfer RNA | 8,988 | 9,055 | 68 bp | + | – |
| ND6 | Protein-coding gene | 9,068 | 9,559 | 492 bp | + | 31.9% |
| tRNA-Ile | Transfer RNA | 9,561 | 9,628 | 68 bp | + | – |
| ND2 | Protein-coding gene | 9,659 | 10,630 | 972 bp | + | 36.4% |
| tRNA-Trp | Transfer RNA | 10,631 | 10,697 | 67 bp | + | – |
| tRNA-Gly | Transfer RNA | 10,703 | 10,768 | 66 bp | + | – |
| tRNA-Thr | Transfer RNA | 10,773 | 10,834 | 62 bp | + | – |
| CYTB | Protein-coding gene | 10,838 | 11,977 | 1,140 bp | + | 36.4% |
| ND4L | Protein-coding gene | 11,977 | 12,253 | 277 bp | + | 36.1% |
| tRNA-Ala | Transfer RNA | 12,254 | 12,317 | 64 bp | + | – |
| tRNA-His | Transfer RNA | 12,370 | 12,433 | 64 bp | + | – |
| ND5 | Protein-coding gene | 12,434 | 14,128 | 1,695 bp | + | 34.8% |
| COX2 | Protein-coding gene | 14,136 | 14,840 | 705 bp | + | 36.9% |
| ND1 | Protein-coding gene | 14,848 | 15,666 | 819 bp | + | 38.6% |
| ATP8 | Protein-coding gene | 14,999 | 15,166 | 168 bp | + | 30.4% |