Colibacter
NCBI now calls it Megasphaera.
Species1named in this genus
Products0across its species
Samples90healthy and not
The genus
Species in this genus
| Species | Healthy guts ↓ 0–100% | Products |
|---|---|---|
 Colibacter massiliensis | 0 | |
| Across the genus | 0 |
* Counted in the same healthy people as the species (whole-genome samples). All bars use the same 0–100% scale. A product with two Colibacter species counts once in the genus total.
What they are
A C G T Its species' DNA
Shortest we have Mycoplasmoides genitalium 0.6M
⋮ 106 shorter than any Colibacter
⋮ 2,245 longer than any Colibacter
Longest we have Bradyrhizobium altum 9.8M
Colibacter’s one genome we have is 1.7M: among the smallest for gut microbes.
One reference genome per species; strains vary.
Their ID genes, lined up: shared stretches form solid stripes
Fewer than two of its species have a reference ID-gene sequence in NCBI yet, so there's nothing to line up Data sources
From its species' genomes and lab tests
What its species can do
A species counts when most of its strains can. Not measured in anyone's gut.
- Can ferment fiber 1 of 1 species C. massiliensis
- Can use lactose 1 of 1 species C. massiliensis
- Can make butyrate 0 of 1 species None of its species
- Can make propionate 0 of 1 species None of its species
- Can make lactic acid 0 of 1 species None of its species
- Can eat inulin 0 of 1 species None of its species
- Can eat resistant starch 0 of 1 species None of its species
- Can eat pectin 0 of 1 species None of its species
- Can feed on gut mucus 0 of 1 species None of its species
- Can change bile acids 0 of 1 species None of its species
- Can make B vitamins 0 of 1 species None of its species
- Can make hydrogen sulfide 0 of 1 species None of its species
- Can make methane 0 of 1 species None of its species
What’s typical · a description, not a comparison
In healthy guts
Everyone · 12,213 people · 129 studies
How common
Found in under 1% of healthy people.
How big a slice of the gut
- largest Bacteroides 9.8%
- 2nd largest Phocaeicola 9.1%
- 3rd largest Segatella 6.4%
- 4th largest Bifidobacterium 6.2%
- 5th largest Faecalibacterium 5.4%
- 6th largest Alistipes 5.2%
- 7th largest Blautia 3.6%
- 8th largest Ruminococcus 3.0%
- Colibacter under 0.01%
- 649 other microbes, each a sliver 32.3%
- 18.9%
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 · under 1% carry it under 0.01% of the microbes
198 people · 5 studies 0% carry it 0.00% of the microbes
57 people · 0% carry it 0.00% of the microbes
1,283 people · 27 studies under 1% carry it under 0.01% of the microbes
142 people · 15 studies 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 studies under 1% carry it under 0.01% of the microbes
Compared within studies that had both
In conditions
Compared with healthy people in the same studies, it’s less common in none and more common in none. Only studies that had both are counted.
A difference is an association: it doesn’t mean this microbe causes, prevents or treats any of these.
PubMed · human studies and reviews first
Recent research
No recent human studies or reviews yet. Probiome follows PubMed for the few hundred most-studied microbes; rarer species often only show up in large surveys. Search PubMed for this genus ↗