Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human Hodgkin lymphoma tissue sections labeling CD4 with ab213215 at 1/50 dilution (3.1 µg/ml). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution 2) for 10mins. Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as the secondary antibody. Hematoxylin was used as a counterstain. Positive staining on the human Hodgkin's lymphoma, performed on a Leica Biosystems BOND™ RX instrument.
The section was incubated with ab213215 for 30 mins at room temperature.

Flow cytometry analysis of THP-1 (human acute monocytic leukemia) labeling CD4 with purified ab213215 at 1/20 dilution (7.75 µg/ml) (red).

Goat anti rabbit IgG (Alexa Fluor^® 488, ab150081) at 1/2000 dilution was used as a secondary antibody. Isotype control - Rabbit monoclonal IgG (ab172730) (Black). Unlableled control - Unlabeled cells (blue).

Foreskin epidermis at 10× magnification stained with CCR5 (pseudocolored green), CD4 (pseudocolored red; ab213215) and SYTOX Orange (pseudocolored blue) for nuclear identification. All fields from ∼26.5 mm² sections were used for analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human tonsil tissue sections labeling CD4 with ab213215 at 1/50 dilution (3.1 µg/ml). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution 2) for 10mins. Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as the secondary antibody. Hematoxylin was used as a counterstain. Positive staining on the human tonsil, performed on a Leica Biosystems BOND™ RX instrument.
The section was incubated with ab213215 for 30 mins at room temperature.

Flow cytometric analysis of Jurkat (Human T cell leukemia cell line from peripheral blood) cells labeling CD4 with ab213215 at 1/100 dilution (green), compared with a rabbit IgG negative control (blue).

Immunohistochemical analysis of formalin-fixed, paraffin-embedded human tonsil tissue labeling CD4 with ab213215 at 1/50 dilution.

Immunohistochemical analysis of formalin-fixed, paraffin-embedded human tonsil tissue labeling CD4 with ab213215 at 1/50 dilution.