B1 antigen
E902886
B1 antigen is a cell-surface molecule found on most B lymphocytes and is widely used as a diagnostic and therapeutic target in B-cell malignancies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| B1 antigen canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11074438 — 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: B1 antigen Context triple: [CD20 protein, alternativeName, B1 antigen]
-
A.
CD46
CD46 is a human cell-surface complement regulatory protein that also serves as an entry receptor for various pathogens, including certain adenoviruses and measles virus.
-
B.
HLA
HLA is the three-letter IATA airport code for Lanseria International Airport, a major privately owned airport serving the Johannesburg region in South Africa.
-
C.
ABO blood group system
The ABO blood group system is the primary human blood classification method based on the presence or absence of specific antigens on red blood cells, crucial for safe blood transfusions and organ transplantation.
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D.
Blood Type
"Blood Type" is the critically acclaimed 2018 debut EP by American singer-songwriter Cautious Clay, blending R&B, indie, and electronic influences.
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E.
major histocompatibility complex (MHC)
The major histocompatibility complex (MHC) is a set of cell-surface proteins essential for the immune system to recognize foreign molecules and present antigens to T cells, playing a central role in adaptive immunity and transplant compatibility.
- 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: B1 antigen Target entity description: B1 antigen is a cell-surface molecule found on most B lymphocytes and is widely used as a diagnostic and therapeutic target in B-cell malignancies.
-
A.
CD46
CD46 is a human cell-surface complement regulatory protein that also serves as an entry receptor for various pathogens, including certain adenoviruses and measles virus.
-
B.
HLA
HLA is the three-letter IATA airport code for Lanseria International Airport, a major privately owned airport serving the Johannesburg region in South Africa.
-
C.
ABO blood group system
The ABO blood group system is the primary human blood classification method based on the presence or absence of specific antigens on red blood cells, crucial for safe blood transfusions and organ transplantation.
-
D.
Blood Type
"Blood Type" is the critically acclaimed 2018 debut EP by American singer-songwriter Cautious Clay, blending R&B, indie, and electronic influences.
-
E.
major histocompatibility complex (MHC)
The major histocompatibility complex (MHC) is a set of cell-surface proteins essential for the immune system to recognize foreign molecules and present antigens to T cells, playing a central role in adaptive immunity and transplant compatibility.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
B-cell surface marker
ⓘ
cell surface antigen ⓘ diagnostic biomarker ⓘ therapeutic target ⓘ |
| associatedWithDisease |
B-cell leukemia
ⓘ
linked to:
chronic lymphocytic leukemia
B-cell lymphoma ⓘ |
| biologicalRole |
B-cell identification marker
ⓘ
surface recognition molecule on B cells ⓘ |
| cellularLocation | cell surface ⓘ |
| detectedBy |
flow cytometry
ⓘ
immunohistochemistry ⓘ |
| expressedOn | most B lymphocytes ⓘ |
| expressedPredominantlyIn | B-cell compartment of the immune system ⓘ |
| foundOnCellType |
B cell
ⓘ
B lymphocyte ⓘ |
| relevantToField |
clinical oncology
ⓘ
hematopathology ⓘ immunology ⓘ |
| targetOf | monoclonal antibodies ⓘ |
| usedAsMarkerFor |
B-cell differentiation
ⓘ
B-cell lineage ⓘ B-cell neoplasms ⓘ |
| usedIn |
diagnosis of B-cell malignancies
ⓘ
therapy of B-cell malignancies ⓘ |
| usedTo |
guide targeted therapy in B-cell cancers
ⓘ
identify malignant B cells ⓘ monitor B-cell tumor burden ⓘ |
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: B1 antigen Description of subject: B1 antigen is a cell-surface molecule found on most B lymphocytes and is widely used as a diagnostic and therapeutic target in B-cell malignancies.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.