Shouchella clausiiS. clausii

Its ID gene (16S) · each bar is one letter A C G T NCBI 16S

What's this?

Zoomed in: letters 115–138

Its ID gene: the stretch scientists read to tell microbes apart. Each bar is one letter of its DNA. Every species has its own order of letters, so the pattern works like a fingerprint. Close relatives share most of it.

16S rRNA gene, V4 region: the 253 letters between the standard primers (515F/806R), which are the same in every species. One reference sequence; strains can differ by a letter or two. NCBI NR_026140.1

NCBI Taxonomy 79880

Plate · Bacillota

Shouchella clausii

Formerly Alkalihalobacillus clausii.

What it can do

All 36 things it can and can’t do →

Can eat starch
Can ferment protein

Healthy guts <1% of healthy people carry it Its slice 1443rd largest in a healthy gut · <1% Genome 4.5M letters

Products 0 list it on the label

See it on the map →

Also known as Alkalihalobacillus clausiiBacillus clausii

Lab traits Gram +Rod-shapedMotileAerobe Lab-tested · BacDive

The whole of its DNA, to scale

Its genome

Genome · 4.5 million letters · 45% G+C

Shortest we have Mycoplasmoides genitalium 0.6M

⋮ 1,826 shorter

Shouchella clausii 4.5M

⋮ 525 longer

Longest we have Bradyrhizobium altum 9.8M

Large for a gut microbe: longer than 78% of the 2,354 we have genomes for.

45% G+C, higher than 43% of gut microbes.

To scale: if its ID gene were 1 cm long, its genome would stretch 30 meters. Yours would stretch 21 kilometers. One reference genome; strains vary. NCBI GCF_034479305.1

Capabilities, not measurements of anyone's gut

What it can do

Eats

Can eat starch The main carbohydrate in bread, rice, potatoes and pasta.
Can ferment protein Breaks down protein that reaches the colon, making compounds such as putrescine and phenols.

See where it sits in the food web →

Not seen in its genomes or lab tests: make butyrate, make propionate, make lactic acid, make succinate, make formate, ferment fiber, eat inulin, eat resistant starch, eat pectin, use lactose, feed on gut mucus, change bile acids, free bile acids, make secondary bile acids, reshape bile acids, make B vitamins, make thiamin, make riboflavin, make niacin, make pyridoxine, make biotin, make folate, make cobalamin, make vitamin K2, make hydrogen, make hydrogen sulfide, make methane, make indole, make GABA, make TMA, make histamine, make tyramine.

All 36 capabilities and their evidence

Capability	Verdict	Genome analysis	Lab tests	Published research
Can make butyrate	Not seen	0 of 1 genome	—	No papers
Can make propionate	Not seen	0 of 1 genome	—	No papers
Can make lactic acid	Not seen	0 of 1 genome	—	No papers
Can make succinate	Not seen	0 of 1 genome	—	No papers
Can make formate	Not seen	0 of 1 genome	—	No papers
Can ferment fiber	Not seen	0 of 1 genome	0 of 2 strains · strip test	No papers
Can eat inulin	Not seen	0 of 1 genome	0 of 2 strains · strip test	No papers
Can eat resistant starch	Not seen	0 of 1 genome	—	No papers
Can eat starch	Can	1 of 1 genome	—	No papers
Can eat pectin	Not seen	0 of 1 genome	—	No papers
Can use lactose	Not seen	0 of 1 genome	0 of 2 strains	No papers
Can feed on gut mucus	Not seen	0 of 1 genome	—	No papers
Can change bile acids	Not seen	0 of 1 genome	—	No papers
Can free bile acids	Not seen	0 of 1 genome	—	No papers
Can make secondary bile acids	Not seen	0 of 1 genome	—	No papers
Can reshape bile acids	Not seen	0 of 1 genome	—	No papers
Can make B vitamins	Not seen	0 of 1 genome	—	No papers
Can make thiamin	Not seen	0 of 1 genome	—	No papers
Can make riboflavin	Not seen	0 of 1 genome	—	No papers
Can make niacin	Not seen	0 of 1 genome	—	No papers
Can make pyridoxine	Not seen	0 of 1 genome	—	No papers
Can make biotin	Not seen	0 of 1 genome	—	No papers
Can make folate	Not seen	0 of 1 genome	—	No papers
Can make cobalamin	Not seen	0 of 1 genome	—	No papers
Can make vitamin K2	Not seen	0 of 1 genome	—	No papers
Can make hydrogen	Not seen	0 of 1 genome	—	No papers
Can make hydrogen sulfide	Not seen	0 of 1 genome	—	No papers
Can make methane	Not seen	0 of 1 genome	—	No papers
Can ferment protein	Can	1 of 1 genome	—	No papers
Can make indole	Not seen	0 of 1 genome	—	No papers
Can make GABA	Not seen	0 of 1 genome	—	No papers
Can make TMA	Not seen	0 of 1 genome	—	No papers
Can make histamine	Not seen	0 of 1 genome	—	No papers
Can make tyramine	Not seen	0 of 1 genome	—	No papers
Can make acetate	Not checked	—	—	No papers
Can make ethanol	Not checked	—	—	No papers

AGORA2 (Heinken et al. 2023) via VMH, CC BY 4.0 · BacDive (DSMZ), CC BY 4.0 · NJC19 (Lim et al., Scientific Data 2020), CC0

What’s typical · a description, not a comparison

In healthy guts

Everyone · 12,213 people · 129 datasets

How common

Found in under 1% of healthy people.

How big a slice of the gut

largest Segatella copri 6.2%
2nd largest Phocaeicola vulgatus 5.0%
3rd largest Faecalibacterium prausnitzii 4.7%
4th largest Bacteroides uniformis 3.2%
5th largest Agathobacter rectalis 2.5%
6th largest Alistipes putredinis 2.3%
7th largest Bifidobacterium longum 2.1%
8th largest Ruminococcus bromii 1.8%
⋮
Shouchella clausii under 0.01%
2,169 other microbes, each a sliver 56.7%
15.6%

On average, a sliver, under 0.01% of the microbes in a healthy gut.

By age and sex

Every group, drawn the same way. Only some samples record age or sex, so each group says how many people it comes from. Tap one to see it above.

By age

367 people · 0% carry it 0.00% of the microbes

198 people · 5 datasets 0% carry it 0.00% of the microbes

57 people · 0% carry it 0.00% of the microbes

1,283 people · 27 datasets 0% carry it 0.00% of the microbes

142 people · 15 datasets 0% carry it 0.00% of the microbes

By sex

2,063 people · 0% carry it 0.00% of the microbes

1,530 people · 29 datasets 0% carry it 0.00% of the microbes