Streptomyces Codon Usage Table

See the most used codons, highest-fraction synonymous codons, and full codon usage frequencies for Streptomyces.

Use frequency to find the most common codons in this organism, and use fraction to compare synonymous codon preference within the same amino acid family.

Escherichia coli Saccharomyces cerevisiae Arabidopsis thaliana Caenorhabditis elegans Cricetulus griseus Drosophila melanogaster Homo sapiens Spodoptera frugiperda Mus musculus Nicotiana tabacum Pichia pastoris Sus scrofa Rattus norvegicus Streptomyces Zea mays

Choose Organism and Display

These settings control the summary cards and the full codon usage table below.

Top Codons by Frequency

Codons ranked by frequency per 1,000 codons in the selected organism.

GCC

Amino acid: A

Fraction 0.57

Freq 78.4

GGC

Amino acid: G

Fraction 0.64

Freq 61.0

CTG

Amino acid: L

Fraction 0.60

Freq 60.9

GAC

Amino acid: D

Fraction 0.95

Freq 58.2

GCG

Amino acid: A

Fraction 0.36

Freq 49.4

GAG

Amino acid: E

Fraction 0.85

Freq 48.4

GTC

Amino acid: V

Fraction 0.55

Freq 46.9

ACC

Amino acid: T

Fraction 0.65

Freq 39.8

Top Codons by Fraction

Synonymous codons ranked by fraction. Stop codons and single-codon amino acids are excluded.

TTC

Amino acid: F

Fraction 0.98

Freq 25.9

ATC

Amino acid: I

Fraction 0.96

Freq 27.6

AAC

Amino acid: N

Fraction 0.96

Freq 16.3

GAC

Amino acid: D

Fraction 0.95

Freq 58.2

CAG

Amino acid: Q

Fraction 0.95

Freq 25.3

AAG

Amino acid: K

Fraction 0.95

Freq 19.7

TAC

Amino acid: Y

Fraction 0.95

Freq 19.5

CAC

Amino acid: H

Fraction 0.93

Freq 21.8

Preferred Codons by Amino Acid

One preferred codon per amino acid, ranked by frequency to surface practical defaults.

GCC

Amino acid: A

Fraction 0.57

Freq 78.4

GGC

Amino acid: G

Fraction 0.64

Freq 61.0

CTG

Amino acid: L

Fraction 0.60

Freq 60.9

GAC

Amino acid: D

Fraction 0.95

Freq 58.2

GAG

Amino acid: E

Fraction 0.85

Freq 48.4

GTC

Amino acid: V

Fraction 0.55

Freq 46.9

ACC

Amino acid: T

Fraction 0.65

Freq 39.8

CGC

Amino acid: R

Fraction 0.47

Freq 39.2

Streptomyces: (Genetic code: Standard)

Print-friendly 2-column table in genetic code order. Frequency is shown per 1,000 codons.

Triplet	Amino acid	Fraction	Frequency/Thousand	Number	Triplet	Amino acid	Fraction	Frequency/Thousand	Number
TTT TTC TTA TTG	F F L L	0.02 0.98 0.00 0.02	0.4 25.9 0.1 2.4	1,234 72,059 179 6,779	TCT TCC TCA TCG	S S S S	0.01 0.41 0.02 0.28	0.6 20.2 1.1 13.7	1,803 56,276 3,013 38,183
TAT TAC TAA TAG	Y Y * *	0.05 0.95 0.03 0.17	1.0 19.5 0.1 0.5	2,727 54,303 395 1,479	TGT TGC TGA TGG	C C * W	0.09 0.91 0.80 1.00	0.7 7.1 2.4 15.1	2,004 19,634 6,617 42,057
CTT CTC CTA CTG	L L L L	0.02 0.36 0.00 0.60	1.6 36.6 0.4 60.9	4,459 101,750 997 169,359	CCT CCC CCA CCG	P P P P	0.02 0.41 0.02 0.54	1.5 25.4 1.3 33.3	4,294 70,794 3,746 92,793
CAT CAC CAA CAG	H H Q Q	0.07 0.93 0.05 0.95	1.7 21.8 1.4 25.3	4,740 60,728 3,759 70,449	CGT CGC CGA CGG	R R R R	0.07 0.47 0.03 0.38	5.5 39.2 2.6 31.8	15,259 108,957 7,181 88,441
ATT ATC ATA ATG	I I I M	0.02 0.96 0.02 1.00	0.6 27.6 0.7 15.8	1,759 76,866 1,850 43,995	ACT ACC ACA ACG	T T T T	0.02 0.65 0.03 0.31	1.2 39.8 1.6 18.9	3,330 110,711 4,581 52,727
AAT AAC AAA AAG	N N K K	0.04 0.96 0.05 0.95	0.7 16.3 1.1 19.7	2,002 45,375 2,959 54,924	AGT AGC AGA AGG	S S R R	0.03 0.25 0.01 0.04	1.5 12.4 0.8 3.7	4,219 34,568 2,165 10,191
GTT GTC GTA GTG	V V V V	0.02 0.55 0.03 0.41	1.5 46.9 2.7 34.9	4,063 130,645 7,402 97,199	GCT GCC GCA GCG	A A A A	0.02 0.57 0.04 0.36	3.1 78.4 5.6 49.4	8,535 218,103 15,633 137,587
GAT GAC GAA GAG	D D E E	0.05 0.95 0.15 0.85	3.1 58.2 8.7 48.4	8,523 162,110 24,291 134,604	GGT GGC GGA GGG	G G G G	0.10 0.64 0.08 0.19	9.2 61.0 7.2 18.1	25,651 169,647 19,941 50,450

Showing 64 entries for Streptomyces.

Frequency is measured per 1,000 codons. Fraction compares codons that encode the same amino acid.

Questions this table can answer

Which codons are most common in Streptomyces?

Which synonymous codons are preferred in Streptomyces?

Which codons should be checked before expression design?

How to use this page

Use the summary cards to find the most used and highest-fraction codons quickly.

Switch sorting in the full table when you want to compare by frequency, fraction, or count.

Use the full organism list and search codons/amino acids on the Codon Usage Frequency Table.

FAQ

What are the most used codons in Streptomyces?

Use the "Most Used Codons" section to see which codons appear most often in Streptomyces. The ranking is based on frequency per 1,000 codons.

Which codons have the highest fraction in Streptomyces?

Use the "Highest Fraction Codons" section to compare synonymous codons for the same amino acid. Single-codon amino acids and stop codons are excluded so the ranking reflects codon preference rather than trivial 1.00 values.

What is the difference between codon frequency and codon fraction in Streptomyces?

Frequency measures how often a codon appears per 1,000 codons in the dataset. Fraction measures how strongly that codon is preferred relative to alternative codons encoding the same amino acid.

How should I use this Streptomyces codon usage table for optimization?

Start with the preferred-codon summaries to identify likely defaults, then review the full table below before making codon optimization or expression design decisions.