Semotilus atromaculatus

Creek chub

Maximum lifespan

8 yr

AnAge record

mtDNA size

16,623 bp

RefSeq NC_033946.1

GC content

43.67%

Whole genome

Non-coding

1,013 bp

D-loop 948 bp

Where Creek chub sits among 2,335 species

Whole-genome GC content against maximum lifespan. Creek chub has the 1,742nd longest lifespan of them.

This species
Other ray-finned fishes
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,623 bp

GC skew (G − C) / (G + C): −0.180
AT skew (A − T) / (A + T): +0.005

Life history

Maximum lifespan: 8 years
Female sexual maturity: 3 years
Male sexual maturity: 3 years
Litter or clutch size: 50

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 03985)

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 RefSeq

Whole genome16,623 bp

Protein-coding11,403 bp

12S rRNA957 bp

16S rRNA1,688 bp

All tRNA1,562 bp

D-loop948 bp

Genes and regions

Select a column to sort; select a gene to compare it across species

Base composition of Semotilus atromaculatus genes

ND1NADH dehydrogenase subunit 1	975 bp	22.7%	30.1%	19.5%	27.8%	47.28%	−0.176	−0.140
ND2NADH dehydrogenase subunit 2	1,045 bp	24.2%	28.4%	17.8%	29.6%	47.37%	−0.248	−0.080
COX1Cytochrome c oxidase subunit I	1,551 bp	26.4%	31.3%	18.3%	24.0%	42.36%	−0.135	−0.085
COX2Cytochrome c oxidase subunit II	691 bp	29.1%	28.1%	17.2%	25.6%	42.84%	−0.196	+0.018
ATP8ATP synthase F0 subunit 8	165 bp	36.4%	24.8%	10.3%	28.5%	38.79%	−0.469	+0.188
ATP6ATP synthase F0 subunit 6	683 bp	27.1%	32.4%	15.1%	25.5%	40.56%	−0.256	−0.089
COX3Cytochrome c oxidase subunit III	784 bp	26.5%	29.2%	18.4%	25.9%	44.26%	−0.170	−0.048
ND3NADH dehydrogenase subunit 3	349 bp	26.6%	33.5%	16.3%	23.5%	39.83%	−0.180	−0.114
ND4LNADH dehydrogenase subunit 4L	297 bp	26.3%	30.3%	15.5%	27.9%	43.43%	−0.287	−0.071
ND4NADH dehydrogenase subunit 4	1,382 bp	27.1%	30.6%	16.7%	25.5%	42.26%	−0.209	−0.060
ND5NADH dehydrogenase subunit 5	1,836 bp	28.0%	29.5%	15.4%	27.2%	42.54%	−0.278	−0.026
ND6NADH dehydrogenase subunit 6	522 bp	36.4%	17.2%	14.9%	31.4%	46.36%	−0.355	+0.357
CYTBCytochrome b	1,141 bp	26.6%	30.4%	15.4%	27.6%	43.03%	−0.283	−0.068
12S rRNA12S ribosomal RNA	957 bp	29.4%	21.7%	23.6%	25.3%	48.90%	−0.034	+0.149
16S rRNA16S ribosomal RNA	1,688 bp	33.9%	21.2%	21.2%	23.7%	44.91%	−0.055	+0.230
D-loopControl region (D-loop)	948 bp	31.1%	33.4%	15.2%	20.3%	35.44%	−0.143	−0.036

Codon usage

Counts per codon, darker is more frequent

Gene

3,804 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.9%

UUU122

UUC102

Leu L16.6%

UUA154

UUG45

CUU144

CUC80

CUA158

CUG51

Ile I7.2%

AUU204

AUC71

Met M4.8%

AUA113

AUG68

Val V6.4%

GUU55

GUC53

GUA97

GUG39

Ser S6.5%

UCU48

UCC53

UCA67

UCG20

AGU17

AGC44

Pro P5.7%

CCU64

CCC60

CCA75

CCG17

Thr T7.5%

ACU52

ACC100

ACA107

ACG28

Ala A9.0%

GCU60

GCC139

GCA118

GCG25

Tyr Y3.0%

UAU61

UAC52

His H2.7%

CAU43

CAC58

Gln Q2.5%

CAA75

CAG22

Asn N2.8%

AAU53

AAC55

Lys K2.0%

AAA57

AAG19

Asp D2.1%

GAU33

GAC46

Glu E2.7%

GAA72

GAG30

Cys C0.7%

UGU14

UGC13

Trp W3.1%

UGA103

UGG16

Arg R2.0%

CGU15

CGC14

CGA34

CGG14

Gly G6.5%

GGU44

GGC67

GGA84

GGG54

Stop 0.2%

UAA4

UAG2

AGA0

AGG0

Genome map

38 annotated features in NC_033946.1

Hover, 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 (43.7%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Semotilus atromaculatus (NC_033946.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	69	69 bp	+	–
12S rRNA	Ribosomal RNA	70	1,026	957 bp	+	48.9%
tRNA-Val	Transfer RNA	1,027	1,098	72 bp	+	–
16S rRNA	Ribosomal RNA	1,099	2,786	1,688 bp	+	44.9%
tRNA-Leu (UUR)	Transfer RNA	2,787	2,862	76 bp	+	–
ND1	Protein-coding gene	2,864	3,838	975 bp	+	47.3%
tRNA-Ile	Transfer RNA	3,843	3,914	72 bp	+	–
tRNA-Gln	Transfer RNA	3,913	3,983	71 bp	−	–
tRNA-Met	Transfer RNA	3,985	4,053	69 bp	+	–
ND2	Protein-coding gene	4,054	5,098	1,045 bp	+	47.4%
tRNA-Trp	Transfer RNA	5,099	5,169	71 bp	+	–
tRNA-Ala	Transfer RNA	5,171	5,239	69 bp	−	–
tRNA-Asn	Transfer RNA	5,241	5,313	73 bp	−	–
tRNA-Cys	Transfer RNA	5,346	5,413	68 bp	−	–
tRNA-Tyr	Transfer RNA	5,415	5,485	71 bp	−	–
COX1	Protein-coding gene	5,487	7,037	1,551 bp	+	42.4%
tRNA-Ser (UCN)	Transfer RNA	7,038	7,108	71 bp	−	–
tRNA-Asp	Transfer RNA	7,112	7,185	74 bp	+	–
COX2	Protein-coding gene	7,200	7,890	691 bp	+	42.8%
tRNA-Lys	Transfer RNA	7,891	7,966	76 bp	+	–
ATP8	Protein-coding gene	7,968	8,132	165 bp	+	38.8%
ATP6	Protein-coding gene	8,126	8,808	683 bp	+	40.6%
COX3	Protein-coding gene	8,809	9,592	784 bp	+	44.3%
tRNA-Gly	Transfer RNA	9,593	9,664	72 bp	+	–
ND3	Protein-coding gene	9,665	10,013	349 bp	+	39.8%
tRNA-Arg	Transfer RNA	10,014	10,082	69 bp	+	–
ND4L	Protein-coding gene	10,083	10,379	297 bp	+	43.4%
ND4	Protein-coding gene	10,373	11,754	1,382 bp	+	42.3%
tRNA-His	Transfer RNA	11,755	11,823	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,824	11,892	69 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,894	11,966	73 bp	+	–
ND5	Protein-coding gene	11,967	13,802	1,836 bp	+	42.5%
ND6	Protein-coding gene	13,799	14,320	522 bp	−	46.4%
tRNA-Glu	Transfer RNA	14,321	14,389	69 bp	−	–
CYTB	Protein-coding gene	14,395	15,535	1,141 bp	+	43.0%
tRNA-Thr	Transfer RNA	15,536	15,607	72 bp	+	–
tRNA-Pro	Transfer RNA	15,607	15,676	70 bp	−	–
D-loop	Control region	15,676	16,623	948 bp	–	35.4%