Bacillus licheniformis
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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_074923.1
Formerly Clostridium licheniforme.
Large for a gut microbe: longer than 74% of the 2,354 we have genomes for.
Bigger genomes usually carry more tools: it can do 5 of the 13 things we track, more than most gut microbes. See what it can do →
46% G+C, higher than 46% of gut microbes.
To scale: if its ID gene were 1 cm long, its genome would stretch 28 meters. Yours would stretch 21 kilometers. One reference genome; strains vary. NCBI GCF_034478925.1
What it can do
- Can make lactic acid What yogurt bacteria make; other microbes turn it into butyrate.
- Can ferment fiber Breaks down dietary fiber that our own enzymes can't.
- Can eat inulin A fiber in onions, garlic, leeks, chicory and bananas (also sold as FOS).
- Can eat pectin A fiber in apples, citrus and other fruit.
- Can use lactose The sugar in milk and dairy.
Not seen in its genomes: make butyrate, make propionate, eat resistant starch, feed on gut mucus, change bile acids, make B vitamins, make hydrogen sulfide, make methane.
All 13 capabilities and their evidence
| Capability | Verdict | Genome analysis | Lab tests | Published research |
|---|---|---|---|---|
| Can make butyrate | Not seen | 0 of 6 genomes | — | No papers |
| Can make propionate | Not seen | 0 of 6 genomes | — | No papers |
| Can make lactic acid | Can | 6 of 6 genomes | — | No papers |
| Can ferment fiber | Can | 6 of 6 genomes | 18 of 46 strains · strip test Strip tests often miss fiber-eaters, so this doesn't override the genomes. | No papers |
| Can eat inulin | Can | 6 of 6 genomes | 15 of 45 strains · strip test Strip tests often miss fiber-eaters, so this doesn't override the genomes. | No papers |
| Can eat resistant starch | Not seen | 0 of 6 genomes | — | No papers |
| Can eat pectin | Can | 6 of 6 genomes | — | No papers |
| Can use lactose | Can | 6 of 6 genomes | 13 of 41 strains | No papers |
| Can feed on gut mucus | Not seen | 0 of 6 genomes | — | No papers |
| Can change bile acids | Not seen | 0 of 6 genomes | — | No papers |
| Can make B vitamins | Not seen | 0 of 6 genomes | — | No papers |
| Can make hydrogen sulfide | Not seen | 0 of 6 genomes | — | No papers |
| Can make methane | Not seen | 0 of 6 genomes | — | 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
In healthy guts
Found in under 1% of healthy people.
- 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%
- Bacillus licheniformis 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.
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.
In conditions
Recent research
Strains studied
How much each strain has been studied in people, not whether it works. Many trials test a strain inside a blend, so those are counted apart, and reviews are summaries of trials, so they're never counted as more trials.
B. licheniformis SL-307
In 1 product →No human trials found yet
Human trials, meta-analyses and systematic reviews naming the strain · animal and lab studies not counted · Data sources