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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 26, 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]. Azevedo J, Cação C, 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.