ICC/IF for Anti-SEMA7A [IPI-mSEM7A.19] in binding assay
Addgene #255664
- Data Submitted By
- Alexander Morano , Travis Riedel and Deborah Moshinsky
- Lab Name
- Institute for Protein Innovation (IPI)
- Submission Date
- May 29, 2026
- Publication Date
- June 10, 2026 (modified June 18, 2026)
- DOI
- https://doi.org/10.57733/addgene.f3azgq
- Abstract
- Experimental results for Anti-SEMA7A [IPI-mSEM7A.19] (Addgene #255664) in an immunofluorescence (IF) binding assay with ExpiCHO cells expressing human or mouse SEMA7A.
- Citation
-
ICC/IF for Anti-SEMA7A [IPI-mSEM7A.19] in binding assay. Morano A, Riedel T, Moshinsky D 2026. Addgene Report, https://doi.org/10.57733/addgene.f3azgq
![A) Immunofluorescence (IF) of ExpiCHO cells transfected with V5-tagged human and mouse SEMA7A. Human SEMA7A was co-transfected with GFP (human transfection control) and mouse SEMA7A was co-transfected with BFP (mouse transfection control). Cells were transfected separately and mixed for labeling and imaging. Cells were labeled with Anti-SEMA7A [IPI-mSEM7A.19] (Addgene #255664) and imaged for GFP (green), BFP (blue), and Anti-SEMA7A [IPI-mSEM7A.19] (magenta) at 40X magnification. Scale bar: 20 μm. B) Combined quantification of multiple images of the same transfected cells taken at 10X magnification. Anti-SEMA7A [IPI-mSEM7A.19] labeling of human (left) and mouse (right) SEMA7A is shown in the top row, and compared to a positive (left) and negative (right) control in the bottom row. For both panels, Anti-SEMA7A [IPI-mSEM7A.19] was used at a 1 µg/mL (1:1,000 dilution).](https://datahub-media.addgene.org/report-images/f3azgq/mSEM7A19_IF-Binding.png)
Image attribution: Institute for Protein Innovation (IPI)
This report is made available under the Creative Commons Attribution 4.0 International License.
- Antibodies Used
-
Anti-SEMA7A [IPI-mSEM7A.19]
Addgene #255664 -
Alexa Fluor 647 F(ab')2 goat anti-rabbit IgG Fc fragment
Jackson ImmunoResearch #111-606-046
Materials & Methods
Sample
- Target Species
- Human
- Cell / Tissue Type
- ExpiCHO cells
- Additional Information
- ExpiCHO cells were transiently transfected with GFP (transfection control) and V5-tagged human SEMA7A.
Buffer
- Name
- PBS
Fixative
- Fixative
- Formaldehyde/Paraformaldehyde
- Time
- 15 min
- Temperature
- Room Temperature
Permeabilization
- Agent
- Triton X-100 in PBS
- Concentration
- 0.20%
- Time
- 10 min
- Temperature
- Room Temperature
Blocking
- Agent
- Normal goat serum + BSA
- Concentration
- 5% serum, 5% BSA
- Time
- 30 min
- Temperature
- Room Temperature
Primary Antibody
- Name
- Anti-SEMA7A [IPI-mSEM7A.19]
- Source
- Addgene
- Catalog Number
- 255664
- Host Species
- Rabbit
- Target Antigen
- SEMA7A
- Concentration
- 1 µg/mL (1:1,000 dilution)
- Time
- 60 min
- Temperature
- Room Temperature
Secondary Antibody
- Name
- Alexa Fluor 647 F(ab')2 goat anti-rabbit IgG Fc fragment
- Source
- Jackson ImmunoResearch
- Catalog Number
- 111-606-046
- Concentration
- 2 µg/mL
- Time
- 60 min
- Temperature
- Room Temperature
Additional Information
- Additional Information
Confocal images taken at 40X magnification on an ImageXpress confocal HT.ai microscope.
For quantitative data, GFP- or BFP-positive cells were identified via the neural network CellPose, then the mean fluorescence intensity (MFI) of the far-red channel for each cell, representing Anti-SEMA7A [IPI-mSEM7A.19] labeling, was recorded. Each histogram displays the number of cells with MFIs ranging from below 100 (background fluorescence) to 20000 (saturation).
Controls
Positive control: Anti-V5 [IPI-SV5-Pk1] (Addgene #218107) used to confirm IF labeling efficacy (since construct expressing target also has a V5 tag).
Negative control: Rabbit IgG Isotype Control [IPI-MOPC-21] (Addgene #237822) used to confirm lack of nonspecific binding to the sample.
Results
- Result
- Pass (The antibody worked under these conditions)
- Describe Results
- The antibody shows binding to mouse SEM7A with weak binding to human SEMA7A.