SARS-CoV-2 ORF3a Antibody

Detection of SARS-CoV-2 ORF3a by Western Blot. Western blot shows recombinant SARS-CoV-2 ORF3a peptide. PVDF membrane was probed with 1 µg/mL of Rabbit Anti-SARS-CoV-2 ORF3a Monoclonal Antibody (Catalog # MAB107061) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (HAF008). A specific band was detected for ORF3a at approximately 22 kDa (as indicated). This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.

ORF3a in HEK293 Human Cell Line Transfected with SARS-CoV-2. ORF3a was detected in immersion fixed HEK293 human embryonic kidney cell line transfected with SARS-CoV-2 (positive staining) and HEK293 human embryonic kidney cell line (non-transfected, negative staining) using Rabbit Anti-SARS-CoV-2 ORF3a Monoclonal Antibody (Catalog # MAB107061) at 3 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rabbit IgG Secondary Antibody (red; NL004) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. Staining was performed using our protocol for Fluorescent ICC Staining of Non-adherent Cells.

ORF3a in Human Spleen. ORF3a was detected in immersion fixed paraffin-embedded sections of human spleen infected with SARS-CoV-2 using Rabbit Anti-SARS-CoV-2 ORF3a Monoclonal Antibody (Catalog # MAB107061) at 0.3 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Rabbit IgG VisUCyte™ HRP Polymer Antibody (VC003). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (CTS013). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to immunoreactive profiles scattered throughout the tissue. Staining was performed using our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.