Atherinops affinis
Topsmelt
GC content
46.34%
Whole genome
Non-coding
933 bp
D-loop 845 bp
Where Topsmelt sits among 2,335 species
Whole-genome GC content against maximum lifespan. Topsmelt has the 1,675th longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,526 bp
- GC skew (G − C) / (G + C)
- −0.262
- AT skew (A − T) / (A + T)
- −0.008
About this record
- Lifespan source
- AnAge build 15
- Based on
- an animal in the wild
- Data quality
- acceptable, medium 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 genome16,526 bp
Protein-coding11,406 bp
12S rRNA943 bp
16S rRNA1,693 bp
All tRNA1,551 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 | 975 bp | 47.69% | −0.308 | −0.149 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,045 bp | 48.80% | −0.443 | −0.073 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 45.13% | −0.226 | −0.105 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 44.14% | −0.252 | −0.031 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 44.05% | −0.486 | +0.043 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 45.61% | −0.397 | −0.102 | |||||
| COX3Cytochrome c oxidase subunit III | 785 bp | 48.79% | −0.290 | −0.095 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 47.56% | −0.289 | −0.169 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 52.86% | −0.401 | −0.143 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 47.00% | −0.356 | −0.079 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,839 bp | 46.93% | −0.330 | −0.066 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 47.70% | −0.414 | +0.326 | |||||
| CYTBCytochrome b | 1,141 bp | 46.80% | −0.322 | −0.140 | |||||
| 12S rRNA12S ribosomal RNA | 943 bp | 48.14% | −0.084 | +0.219 | |||||
| 16S rRNA16S ribosomal RNA | 1,693 bp | 45.84% | −0.075 | +0.202 | |||||
| D-loopControl region (D-loop) | 845 bp | 36.45% | −0.149 | +0.002 |
Codon usage
Counts per codon, darker is more frequent3,807 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F6.2%
UUU110
UUC127
Leu L17.4%
UUA85
UUG21
CUU173
CUC175
CUA155
CUG52
Ile I6.8%
AUU165
AUC93
Met M3.9%
AUA76
AUG74
Val V6.1%
GUU67
GUC63
GUA77
GUG24
Ser S6.7%
UCU45
UCC85
UCA57
UCG14
AGU11
AGC43
Pro P5.8%
CCU60
CCC98
CCA49
CCG15
Thr T7.7%
ACU58
ACC133
ACA82
ACG19
Ala A9.2%
GCU88
GCC158
GCA85
GCG18
Tyr Y3.1%
UAU43
UAC74
His H2.8%
CAU35
CAC71
Gln Q2.7%
CAA76
CAG25
Asn N2.9%
AAU49
AAC60
Lys K2.0%
AAA56
AAG20
Asp D2.0%
GAU26
GAC52
Glu E2.6%
GAA74
GAG24
Cys C0.7%
UGU8
UGC17
Trp W3.1%
UGA93
UGG26
Arg R1.9%
CGU8
CGC14
CGA36
CGG15
Gly G6.4%
GGU47
GGC85
GGA75
GGG36
Stop 0.2%
UAA5
UAG2
AGA0
AGG0
Genome map
38 annotated features in NC_066928.1Hover, 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 (46.3%, 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-Phe | Transfer RNA | 1 | 69 | 69 bp | + | – |
| 12S rRNA | Ribosomal RNA | 70 | 1,012 | 943 bp | + | 48.1% |
| tRNA-Val | Transfer RNA | 1,013 | 1,084 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,085 | 2,777 | 1,693 bp | + | 45.8% |
| tRNA-Leu (UUR) | Transfer RNA | 2,778 | 2,851 | 74 bp | + | – |
| ND1 | Protein-coding gene | 2,852 | 3,826 | 975 bp | + | 47.7% |
| tRNA-Ile | Transfer RNA | 3,831 | 3,900 | 70 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,900 | 3,970 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,970 | 4,038 | 69 bp | + | – |
| ND2 | Protein-coding gene | 4,039 | 5,083 | 1,045 bp | + | 48.8% |
| tRNA-Trp | Transfer RNA | 5,084 | 5,155 | 72 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,157 | 5,224 | 68 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,227 | 5,299 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,338 | 5,403 | 66 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,404 | 5,473 | 70 bp | − | – |
| COX1 | Protein-coding gene | 5,475 | 7,025 | 1,551 bp | + | 45.1% |
| tRNA-Ser (UCN) | Transfer RNA | 7,051 | 7,121 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,125 | 7,196 | 72 bp | + | – |
| COX2 | Protein-coding gene | 7,203 | 7,893 | 691 bp | + | 44.1% |
| tRNA-Lys | Transfer RNA | 7,894 | 7,967 | 74 bp | + | – |
| ATP8 | Protein-coding gene | 7,969 | 8,136 | 168 bp | + | 44.1% |
| ATP6 | Protein-coding gene | 8,127 | 8,810 | 684 bp | + | 45.6% |
| COX3 | Protein-coding gene | 8,810 | 9,594 | 785 bp | + | 48.8% |
| tRNA-Gly | Transfer RNA | 9,595 | 9,665 | 71 bp | + | – |
| ND3 | Protein-coding gene | 9,666 | 10,014 | 349 bp | + | 47.6% |
| tRNA-Arg | Transfer RNA | 10,015 | 10,083 | 69 bp | + | – |
| ND4L | Protein-coding gene | 10,084 | 10,380 | 297 bp | + | 52.9% |
| ND4 | Protein-coding gene | 10,374 | 11,754 | 1,381 bp | + | 47.0% |
| tRNA-His | Transfer RNA | 11,755 | 11,823 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,824 | 11,891 | 68 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,896 | 11,968 | 73 bp | + | – |
| ND5 | Protein-coding gene | 11,969 | 13,807 | 1,839 bp | + | 46.9% |
| ND6 | Protein-coding gene | 13,804 | 14,325 | 522 bp | − | 47.7% |
| tRNA-Glu | Transfer RNA | 14,326 | 14,394 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,398 | 15,538 | 1,141 bp | + | 46.8% |
| tRNA-Thr | Transfer RNA | 15,539 | 15,612 | 74 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,612 | 15,681 | 70 bp | − | – |
| D-loop | Control region | 15,682 | 16,526 | 845 bp | – | 36.5% |