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IF for Anti-Neurexin-2-alpha [IPI-mNRXN2a.7]

Addgene #244068

Data Submitted By
Carlos Cação , José Azevedo and Luís Ribeiro
Lab Name
Luís F. Ribeiro, University of Coimbra
Submission Date
February 23, 2026
Publication Date
March 23, 2026 (modified March 23, 2026)
DOI
https://doi.org/10.57733/addgene.4rn7kx
Abstract
HEK293T cell cultures expressing V5-tagged NRXN isoforms labeled with Anti-Neurexin-2-alpha [IPI-mNRXN2a.7] (Addgene #244068), Anti-V5, and Hoechst. IPI-mNRXN2a.7 was tested in cells expressing alpha and beta isoforms of mouse NRXN1, NRXN2, and NRXN3.
Citation
IF for Anti-Neurexin-2-alpha [IPI-mNRXN2a.7]. Cação C, Azevedo J, Ribeiro L 2026. Addgene Report, https://doi.org/10.57733/addgene.4rn7kx
Caption: Immunofluorescence cross-reactivity analysis in HEK293T cell cultures expressing V5-tagged NRXN isoforms labeled with Anti-Neurexin-2-alpha [IPI-mNRXN2a.7] (Addgene #244068), Anti-V5, and Hoechst. IPI-mNRXN2a.7 was tested in cells expressing alpha and beta isoforms of mouse NRXN1, NRXN2, and NRXN3.
Image attribution: Luís F. Ribeiro, PhD

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

Antibodies Used
Anti-Neurexin-2-alpha [IPI-mNRXN2a.7]
Addgene #244068
Donkey anti-Rabbit IgG (H+L) Highly Cross-Adsorbed Secondary Antibody, Alexa Fluor 647
Invitrogen #A31573

Materials & Methods

Sample

Target Species
Mouse
Cell / Tissue Type
HEK293T
Additional Information
HEK293T cells transfected with V5-tagged alpha and beta isoforms of mouse NRXN1, NRXN2, and NRXN3.

Buffer

Name
PBS
pH
7.4

Fixative

Fixative
4% Paraformaldehyde, 4% Sucrose, in PBS
Time
15 min
Temperature
Room Temperature

Permeabilization

Agent
None

Blocking

Agent
BSA
Concentration
10% in PBS (3% BSA in PBS for secondary antibody dilution)
Time
60 min
Temperature
Room Temperature

Primary Antibody

Name
Anti-Neurexin-2-alpha [IPI-mNRXN2a.7]
Source
Addgene
Catalog Number
244068
Host Species
Rabbit
Target Antigen
NRXN2a
Concentration
1:100 from a stock solution of 1 mg/mL
Time
15 min
Temperature
Room Temperature
View in Addgene Catalog

Secondary Antibody

Name
Donkey anti-Rabbit IgG (H+L) Highly Cross-Adsorbed Secondary Antibody, Alexa Fluor 647
Source
Invitrogen
Catalog Number
A31573
Host Species
Donkey
Concentration
1:500 from a stock solution of 2 mg/mL
Conjugate
Alexa Fluor Plus 647
Time
60 min
Temperature
Room Temperature

Results

Result
Pass (The antibody worked under these conditions)
Describe Results
Specific for NRXN2a. Does not recognize other NRXNs.