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Vector dab peroxidase substrate

Manufactured by Vector Laboratories

Vector DAB Peroxidase substrate is a chromogenic substrate used in immunohistochemistry to detect the presence of target proteins in tissue samples. It produces a brown, insoluble reaction product when catalyzed by peroxidase-conjugated antibodies. This substrate is commonly used in various biological and medical research applications.

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2 protocols using vector dab peroxidase substrate

1

CD8+ T Cell Immunohistochemistry

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Frozen tissue was embedded in Frozen Section Medium (Azer Scientific), cut on a cryostat (5 um), and mounted onto Superfrost Plus glass microscope slides. Tissue was fixed on slides with acetone (−20 °C) and endogenous peroxidase activity was blocked with 0.6 % hydrogen peroxide. Slides were placed on Shandon coverplates™ (Thermo Fisher) using 0.2 % Triton-× 100/PBS and placed in a Sequenza™ slide rack (Thermo Fisher). Slides were incubated with Biotin conjugated rat anti-mouse CD8 (eBioscience, 1:50 in 1%BSA/PBS), or diluent as negative control, and then with Vectastain Elite ABC (Vector Laboratories, Burlingame, CA), developed with Vector DAB Peroxidase substrate (Vector Laboratories) and mounted with Permount (Thermo Fisher).
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2

Immunohistochemical Analysis of Skeletal Muscles

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OCT-embedded skeletal muscles, kidney and liver sections on glass coverslips were washed in PBS, fixed in 4% paraformaldehyde, quenched with 50 mM glycine, permeabilized with 0.3% Triton X-100 in PBS and saturated with 3% goat serum (Thermo, 50062Z). Vectastain Elite ABC universal kit-haematoxylin counterstain (Vector Laboratories, PK-6200) with Vector DAB Peroxidase Substrate (Vector Laboratories, SK-4100) was used following the manufacturer’s instructions. Primary antibodies were used for phosphor-histone H2A.X (1:400; Cell Signaling, 9718), HMGB1 (1:1,000; Abcam, ab18256) and Desmin (1:200; Abcam, ab15200).
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