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  • 294R-1 - BOB.1 (SP92) Rabbit Monoclonal Antibody

294R-1 Sigma-Aldrich

BOB.1 (SP92) Rabbit Monoclonal Antibody



Related Categories Alphabetical Index, Antibodies, BL-BZ, Cell Marque Antibodies, Hematopathology,
conjugate   unconjugated
clone   SP92, monoclonal
biological source   rabbit
application(s)   immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:100-1:500
species reactivity   human
form   buffered aqueous solution
shipped in   wet ice
storage temp.   2-8°C
packaging   vial of 0.1 mL concentrate (294R-14)
  vial of 0.5 mL concentrate (294R-15)
  bottle of 1.0 mL predilute (294R-17)
  vial of 1.0 mL concentrate (294R-16)
  bottle of 7.0 mL predilute (294R-18)
antibody form   culture supernatant
isotype   IgG1
antibody product type   primary antibodies
Quality Level   GMP-IVD
description   For In Vitro Diagnostic Use in Select Regions (See Chart)
mfr. no.   Cell Marque
concentration   0.03-0.06 μg/mL (predilute)
  6-12 μg/mL (concentrate)
control   B-cell lymphoma, tonsil
visualization   nuclear


General description

Expression of BOB.1/OBF.1 is restricted largely to mature B-cells. Germinal center B-cells normally demonstrate strong staining for BOB.1, as do mantle-zone B-cells, and plasma cells. Analyses of BOB.1/OBF.1 expression in a variety of established B-cell lines representing different stages of B-cell development has suggested a constitutive, B-cell-specific expression pattern. Because they are germinal center derived, L&H cells in nodular lymphocyte predominant Hodgkin lymphoma are consistenty immunoreactive for BOB.1. Conversely, the Hodgkin/Reed- Sternberg cells in classical Hodgkin lymphoma either do not express both (80%) or express only one (20%) of the two proteins. In B-cell lymphomas, the highest expression levels for BOB.1/OBF.1 are reported in follicular center lymphomas, diffuse large B-cell lymphomas and Burkitt lymphomas.B-CLL, MALT-type, and mantle cell lymphomas score negative or display an heterogenous/weaker reactivity.10-11 Studies have suggested that anti-BOB. has a high predictive value in discriminating primary mediastinal B-cell lymphoma from classical Hodgkin disease.Approximately 50% of acute myeloid leukemias express BOB.1.

Physical form

Solution in Tris Buffer, pH 7.3-7.7, with 1% BSA and <0.1% Sodium Azide

Legal Information

Cell Marque is a trademark of Sigma-Aldrich Co. LLC


BOB.1 Positive Control Slides, Product No. 294S, are available for immunohistochemistry (formalin-fixed, paraffin-embedded sections).

Other Notes

For Technical Service please contact: 800-665-7284 or email: service@cellmarque.com

Safety & Documentation

Safety Information

NONH for all modes of transport


Certificate of Analysis

Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy

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294S BOB.1 Positive Control Slides, suitable for immunohistochemistry (formalin-fixed, paraffin-embedded sections) 

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