Monoclonal anti CD1a (66IIC7)

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Catalog #: BNUB1034
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Product Description

At least five CD1 genes (CD1a, b, c, d, and e) are identified. CD1 proteins have been demonstrated to restrict T cell response to non-peptide lipid and glycolipid antigens and play a role in non-classical antigen presentation. CD1a is a non-polymorphic MHC Class 1 related cell surface glycoprotein, expressed in association with Beta-2 microglobulin. Anti-CD1a labels Langerhans cell histiocytosis (Histiocytosis X), extranodal histiocytic sarcoma, a subset of T-lymphoblastic lymphoma/leukemia, and interdigitating dendritic cell sarcoma of the lymph node. When combined with antibodies against TTF-1 and CD5, anti-CD1a is useful in distinguishing between pulmonary and thymic neoplasms since CD1a is consistently expressed in thymic lymphocytes in both typical and atypical thymomas, but only focally in 1/6 of thymic carcinomas and not in lymphocytes in pulmonary neoplasms. Anti-CD1a is reported to be a new marker for perivascular epithelial cell tumor (PEComa).

van de Rijn M et al. J Immunol 1983, 131(2):851-5 | Lerch PG et al. Hum Immunol 1983, 6(1):13-30 | Knapp W. et al. (eds) Leukocyte Typing IV, p251-263, Oxford University Press, Oxford, 1989 | Khalili-Shirazi A, et al. J Neurol Sci 1998,158(2):154-163. | Maher JK and Kronenberg M.. Curr Opin Immunol 1997, 9(4):456-461 | Blumberg RS et al. Immunol Rev 1995, 147:5-29. | Salamone MC et al. Dis Markers 1990, 8(5):275-281

Additional Information


Purified with BSA, 0.2 mg/mL, Purified, BSA-free, 1 mg/mL, CF405S, CF405M, CF488A, CF543, CF555, CF568, CF594, CF640R, CF647, CF660R, CF680, CF680R, CF770, Biotin, R-PE, APC, Per-CP, Alkaline Phosphatase, HRP


50 uL, 100 uL, 250 uL, 500 uL

Supplied As

Purified: 0.2 mg/mL in PBS/0.05% BSA/0.05% azide, Purified, BSA-free: 1 mg/mL in PBS without azide, Conjugates: 0.1 mg/mL in PBS/0.1% BSA/0.05% azide, HRP conjugates: 0.1 mg/mL in PBS/0.05% BSA

Antibody type


Host species


Reactivity (target)

CD1a (66IIC7)




IgG1, kappa



Molecular weight

49 kDa


Cortical thymocyte antigen CD1A, Epidermal dendritic cell marker CD1a, FCB6, HTA1, T cell surface antigen T6 / Leu 6, T-Cell Surface Glycoprotein CD1A

Entrez gene ID







Human thymocytes

Species reactivity



Flow cytometry, Immunofluorescence, Immunohistology (formalin)

Cellular localization

Cell surface

Application notes

Flow Cytometry (0.5-1 ug/million cells/0.1 mL), Immunofluorescence 1-2 ug/mL, Immunohistology formalin-fixed 0.5-1 ug/mL for 30 min at RT, Optimal dilution for a specific application should be determined by user, Staining of formalin-fixed tissues requires boiling tissue sections in 10 mM citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes

Positive control

MOLT-4 cells. Paracortex in a tonsil or a reactive lymph node.

MSDS (PDF):MSDS Primary antibodies

Protocol (PDF): Protocols for antibody-based detection

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