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Flow Cytometry for Anti-SEMA3C [IPI-mSEM3C.5]

Addgene #254647

Data Submitted By
Zachary Anderson , Haiying Li , Travis Riedel , Haisun Zhu and Deborah Moshinsky
Lab Name
Institute for Protein Innovation (IPI)
Submission Date
April 16, 2026
Publication Date
May 12, 2026 (modified May 14, 2026)
DOI
https://doi.org/10.57733/addgene.6esgg5
Abstract
Experimental results for Anti-SEMA3C [IPI-mSEM3C.5] (Addgene #254647) in a flow cytometry assay with ExpiCHO cells expressing human or mouse SEMA3C.
Citation
Flow Cytometry for Anti-SEMA3C [IPI-mSEM3C.5]. Anderson Z, Li H, Riedel T, Zhu H, Moshinsky D 2026. Addgene Report, https://doi.org/10.57733/addgene.6esgg5
Caption: Anti-SEMA3C [IPI-mSEM3C.5] (Addgene #254647) recognizes human and mouse SEMA3C. Histogram from FACS analysis on ExpiCHO cells transfected with human or mouse SEMA3C (red), or B7H3 negative control (gray). Cells expressing human (left panel) or mouse (right panel) SEMA3C were labeled with Anti-SEMA3C [IPI-mSEM3C.5] and Alexa Fluor 647 F(ab’)2 goat anti-rabbit IgG Fc fragment (Jackson ImmunoResearch, 111-606-046). Labeled cells were analyzed with an Intellicyt iQue Screener Plus flow cytometer. Histograms were generated and normalized to mode using FlowJo™ v10.10.
Image attribution: Institute for Protein Innovation (IPI)

This report is made available under the Creative Commons Attribution 4.0 International License.

Antibodies Used
Anti-SEMA3C [IPI-mSEM3C.5]
Addgene #254647
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 human SEMA3C or B7H3 (negative control).

Buffer

Name
PBS

Primary Antibody

Name
Anti-SEMA3C [IPI-mSEM3C.5]
Source
Addgene
Catalog Number
254647
Host Species
Rabbit
Target Antigen
SEMA3C
Concentration
15 µg/mL
Time
30 min
Temperature
On ice
View in Addgene Catalog

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
30 min
Temperature
On ice

Additional Information

Additional Information

EC50: A fourteen point titration of antibody concentrations, ranging from 660 nM (0.1 mg/mL) to 4.42 pM with a 1:2.5 dilution factor, against human and mouse SEMA3C showed reactivity towards human and mouse SEMA3C with observed EC50 values of 38.93 nM and 31.46 nM for human and mouse SEMA3C, respectively.

Protocol: ExpiCHO cells were grown per manufacturer’s instruction. Plasmids expressing mouse or human SEMA3C were transiently transfected into cells together with a plasmid expressing blue fluorescent protein (BFP). Control cells were transfected with plasmid expressing full-length human B7H3 together with the BFP plasmid. Two days after transfection, cells at a density of 3 x 106 cells/mL were labeled with primary antibodies.

  • Primary antibody: 15 µg/mL in 1 mL Dulbecco's phosphate-buffered saline (DPBS), 0.5% BSA, with 0.9 mM Ca2+, 0.5 mM Mg2+, kept at 4 °C. 50 µL of antibody added to cells and incubated on ice for 30 min.
  • Washing conditions: Cells pelleted and washed twice in 0.5% DPBS, 0.5% BSA, with 0.9 mM Ca2+, 0.5 mM Mg2+.
  • Secondary antibody: 2 µg/mL Alexa Fluor 647 F(ab')2 goat anti-rabbit IgG Fc fragment (Jackson ImmunoResearch, 111-606-046) in 0.5% DPBS, 0.5% BSA, with 0.9 mM Ca2+, 0.5 mM Mg2+, 30 min, on ice.
  • Detection: Labeled cells were analyzed with an Intellicyt iQue Screener Plus flow cytometer. Cells were first gated for positive BFP expression and then gated for the Alexa 647-conjugated secondary antibody.
Controls
Control cells were transfected with plasmid expressing full-length human B7H3 together with the BFP plasmid.

Results

Result
Pass (The antibody worked under these conditions)
Describe Results
Recognizes human and mouse SEMA3C