Clostridium sp. AM49-4BH

No reference ID-gene sequence in NCBI yet Data sources

Healthy guts36%

Samples7,118

Products0

Genome

No reference genome in NCBI yet Data sources

Lab traits Cell shape: not yet known

Capabilities, not measurements of anyone's gut

What it can do

We don't have capability data for this microbe yet: it isn't in AGORA2's genome models, BacDive's lab tests or NJC19's published research. That's different from “not seen”: nobody has checked.

What’s typical · a description, not a comparison

In healthy guts

Everyone · 12,213 people · 129 studies

How common

Found in 36% 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%
⋮
top 10% Clostridium sp. AM49-4BH 0.10%
2,169 other microbes, each a sliver 56.6%
15.6%

On average, 0.10% of the microbes in a healthy gut: larger than 90% of species’ slices.

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 · 1.4% carry it under 0.01% of the microbes

198 people · 5 studies 29% carry it 0.07% of the microbes top 20%

57 people · 46% carry it 0.1% of the microbes top 90

1,283 people · 27 studies 44% carry it 0.2% of the microbes top 100

142 people · 15 studies 44% carry it 0.2% of the microbes top 90

By sex

2,063 people · 41% carry it 0.1% of the microbes top 100

1,530 people · 29 studies 38% carry it 0.1% of the microbes top 10%

Compared within studies that had both

In conditions

Compared with healthy people in the same studies, it’s less common in 8 conditions 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.

Strongest first, then the biggest gap · Each figure is 10 people

Crohn's disease 1,313 people · 8 studies Less common in people with it Healthy 44% With it 12%
Ulcerative colitis 820 people · 7 studies Less common in people with it Healthy 45% With it 16%
Chronic fatigue syndrome 302 people · 3 studies Less common in people with it Healthy 56% With it 33%
Colorectal cancer 475 people · 10 studies Less common in people with it Healthy 39% With it 23%
Neuroblastoma 95 people · 2 studies Less common in people with it Healthy 38% With it 12%
Multiple sclerosis 113 people · 2 studies Less common in people with it Healthy 52% With it 24%
Acute myeloid leukemia 30 people · 1 study Less common in people with it Healthy 77% With it 37%
Cystic fibrosis 52 people · 1 study Less common in people with it Healthy 24% With it 1.9%

Fig. 1 · By how people live

In studies of how people live

All factors →

Higher in vegans than omnivores

Fackelmann 2025 · 21,561 people Landmark study

Higher in 5 of 5 cohorts

“Higher” is the study’s measure: on average, a bigger share of gut bacteria across everyone in the group, carriers or not. It isn’t how many people carry it. An association the authors report, measured once per person. It doesn’t mean a diet changes this microbe, or that the microbe affects health.

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 species ↗