Thermoproteus tenax
E220179
Thermoproteus tenax is a hyperthermophilic archaeon that thrives in extremely hot, acidic environments such as volcanic hot springs.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Thermoproteus | 1 |
| Thermoproteus tenax canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1891868 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Thermoproteus tenax Context triple: [Crenarchaeota, hasRepresentative, Thermoproteus tenax]
-
A.
Sulfolobus solfataricus
Sulfolobus solfataricus is a thermoacidophilic archaeon commonly found in volcanic hot springs, widely used as a model organism for studying extremophile biology and archaeal molecular processes.
-
B.
Ignicoccus hospitalis
Ignicoccus hospitalis is a hyperthermophilic archaeon that thrives in extremely hot, sulfur-rich environments and is notable for its unique cell envelope and symbiotic association with the nanoarchaeon Nanoarchaeum equitans.
-
C.
Crenarchaeota
Crenarchaeota is a major phylum of Archaea that includes many thermophilic and chemolithoautotrophic microorganisms commonly found in extreme environments such as hot springs and deep-sea hydrothermal vents.
-
D.
Korarchaeota
Korarchaeota are a deeply branching, poorly understood lineage of Archaea typically found in high-temperature environments and known mainly from environmental DNA rather than cultivated representatives.
-
E.
Archaea
Archaea are a domain of single-celled microorganisms distinct from bacteria and eukaryotes, often known for thriving in extreme environments and possessing unique biochemical and genetic features.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Thermoproteus tenax Target entity description: Thermoproteus tenax is a hyperthermophilic archaeon that thrives in extremely hot, acidic environments such as volcanic hot springs.
-
A.
Sulfolobus solfataricus
Sulfolobus solfataricus is a thermoacidophilic archaeon commonly found in volcanic hot springs, widely used as a model organism for studying extremophile biology and archaeal molecular processes.
-
B.
Ignicoccus hospitalis
Ignicoccus hospitalis is a hyperthermophilic archaeon that thrives in extremely hot, sulfur-rich environments and is notable for its unique cell envelope and symbiotic association with the nanoarchaeon Nanoarchaeum equitans.
-
C.
Crenarchaeota
Crenarchaeota is a major phylum of Archaea that includes many thermophilic and chemolithoautotrophic microorganisms commonly found in extreme environments such as hot springs and deep-sea hydrothermal vents.
-
D.
Korarchaeota
Korarchaeota are a deeply branching, poorly understood lineage of Archaea typically found in high-temperature environments and known mainly from environmental DNA rather than cultivated representatives.
-
E.
Archaea
Archaea are a domain of single-celled microorganisms distinct from bacteria and eukaryotes, often known for thriving in extreme environments and possessing unique biochemical and genetic features.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
archaeon
ⓘ
species ⓘ |
| carbonFixationPathway | modified 3-hydroxypropionate/4-hydroxybutyrate cycle ⓘ |
| cellEnvelope | S-layer ⓘ |
| cellShape | rod-shaped ⓘ |
| cellSize |
approximately 0.3–0.5 µm in diameter
ⓘ
up to several µm in length ⓘ |
| cellWallComponent | pseudopeptidoglycan absent ⓘ |
| class |
Thermoprotei
ⓘ
linked to:
Crenarchaeota
|
| discoveredIn | Icelandic hot springs ⓘ |
| domain | Archaea ⓘ |
| electronAcceptor | elemental sulfur ⓘ |
| energySource | sulfur respiration ⓘ |
| environmentalPreference |
acidophilic
ⓘ
hyperthermophilic ⓘ |
| extremophileType |
acidophile
ⓘ
hyperthermophile ⓘ |
| family |
Thermoproteaceae
ⓘ
linked to:
Crenarchaeota
|
| firstDescribedBy |
Huber et al.
ⓘ
linked to:
Huber
|
| firstDescriptionYear | 1989 ⓘ |
| flagellaType | archaeal flagella (archaella) ⓘ |
| genomeStatus | genome sequenced ⓘ |
| genomeType | circular DNA ⓘ |
| genus |
Thermoproteus
ⓘ
linked to:
Thermoproteus tenax
|
| gramStain | Gram-negative ⓘ |
| growthSubstrate |
H2 and CO2
ⓘ
organic compounds as electron donors ⓘ |
| habitat |
geothermal environments
ⓘ
volcanic hot springs ⓘ |
| lipidType | ether-linked membrane lipids ⓘ |
| metabolismType |
anaerobic
ⓘ
chemolithoautotrophic ⓘ |
| motility | motile ⓘ |
| optimalpH | around pH 5–6 ⓘ |
| optimalTemperature | around 86 °C ⓘ |
| order |
Thermoproteales
ⓘ
linked to:
Crenarchaeota
|
| oxygenRequirement | strictly anaerobic ⓘ |
| phylum |
Thermoproteota
ⓘ
linked to:
Crenarchaeota
|
| reproductionMode | binary fission ⓘ |
| reproductionType | asexual reproduction ⓘ |
| sulfurMetabolism | reduces elemental sulfur to hydrogen sulfide ⓘ |
| taxonRank | species ⓘ |
| temperatureRange | approximately 65–96 °C ⓘ |
| typeStrain | Kra 1 ⓘ |
| usedIn |
comparative genomics of Archaea
ⓘ
studies of archaeal metabolism ⓘ studies of hyperthermophilic adaptation ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Thermoproteus tenax Description of subject: Thermoproteus tenax is a hyperthermophilic archaeon that thrives in extremely hot, acidic environments such as volcanic hot springs.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Thermoproteus tenax