mouse α-ap2 (Millipore)
Structured Review

Mouse α Ap2, supplied by Millipore, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/mouse+%CE%B1-ap2/bio_rxiv__2023__01__15__524101-80-29-32?v=Millipore
Average 90 stars, based on 1 article reviews
Images
1) Product Images from "The phospho-regulated amphiphysin/endophilin interaction is required for synaptic vesicle endocytosis"
Article Title: The phospho-regulated amphiphysin/endophilin interaction is required for synaptic vesicle endocytosis
Journal: bioRxiv
doi: 10.1101/2023.01.15.524101
Figure Legend Snippet: Domain-specific mutations in Amph1 disrupt its ability to form protein-protein complexes. (A) Schematic representation of the structural domains of Amph1 that were used for generating GST-fused N-BAR-lacking mutants either with or without the SH3 domain. Point mutations were introduced within the CLAP domain including FFE to SSR for the α-AP2 binding site; and DLD to HSR and WD to SR for the CHC binding sites as indicated. (B) GST-pull-down experiments were performed using synaptosomal lysates from rat brains and GST-fused Amph1-ΔNBAR mutants. The binding affinity of purified endocytic proteins including endophilin A1, CHC, α-AP2 subunits, and Dyn1 was assessed by immunoblotting. CBB staining was performed in parallel to assess GST-fusion protein levels (arrows). Representative images are displayed. The abnormal separation of α-AP2 subunits may result from the high protein content of the GST-Amph1-ΔSH3 constructs which run at a similar molecular weight. (C-F) Quantification of the binding efficacy of CHC (C), α-AP2 subunits (D), Dyn1 (E), and endophilin A1 (F) by determining relative band intensities normalised to the level of the total GST-fused proteins and WT controls. Bars indicate mean ± SEM. ** p < 0.01, *** p < 0.001, and ****p < 0.0001 by one-way ANOVA followed by Tukey’s multiple comparison test. n = 4 synaptosomal lysates/condition from 4 rat brains.
Techniques Used: Binding Assay, Affinity Purification, Western Blot, Staining, Construct, Molecular Weight
Figure Legend Snippet: The Amph1-endophilin A1 complex is formed at the motif 301 PPVPP 305 within the PRD and is controlled by the phosphorylation status of Amph1-S293. (A) Schematic representation of the structural domains of Amph1 that were used for generating GST-fused ΔN-BAR- and ΔSH3 mutants. Point mutations were introduced within the PRD domain including substitutions of proline to alanine residues for AVRA, A 1 A 2 VA 3 A 4 , A1A2, and A3A4 mutants, and S293A and S293E respectively. (B) GST-pull-down experiments using synaptosomal lysates from rat brains and GST-fused Amph1-ΔNBAR-ΔSH3 mutants to assess binding affinity to endophilin A1 and other SH3-containing proteins, such as CHC, α-AP2, PSD95, and syndapin 1. CBB staining was performed in parallel to assess GST-fusion protein levels (arrows). Representative images are displayed. The abnormal separation of α-AP2 subunits may result from the high protein content of the Amph1-ΔNBAR-ΔSH3 constructs which run at a similar molecular weight. (C) Quantification of the endophilin binding efficacy by determining relative band intensities normalised to the level of the GST-fused proteins and WT Amph1-ΔNBAR-ΔSH3. Bars indicate mean ± SEM. n = 4 synaptosomal lysates/condition from 4 rat brains, * p < 0.05 by one-way ANOVA followed by Dunnett’s multiple comparison test.
Techniques Used: Binding Assay, Staining, Construct, Molecular Weight