# A guide to selecting high-performing antibodies for S1PR1 (UniProt ID: P21453) for use in western blot, immunoprecipitation, and immunofluorescence

## TL;DR

This paper evaluates nine commercial antibodies for S1PR1 to help researchers choose the best ones for common lab techniques.

## Contribution

The study provides a standardized evaluation of S1PR1 antibodies to improve reproducibility in research.

## Key findings

- Nine S1PR1 antibodies were tested for western blot, immunoprecipitation, and immunofluorescence.
- Results are shared openly to help researchers select reliable antibodies for their experiments.

## Abstract

Sphingosine 1-phosphate receptor 1 (S1PR1) is a G-coupled protein receptor that induces crucial biological processes when bound by sphingosine 1-phosphate. Here, we have characterized nine S1PR1 commercial antibodies for western blot, immunoprecipitation, and immunofluorescence using a standardized experimental protocol based on comparing read-outs in knockout cell lines and isogenic parental controls. These studies are part of a larger, collaborative initiative seeking to address antibody reproducibility issues by characterizing commercially available antibodies for human proteins and publishing the results openly as a resource for the scientific community. While use of antibodies and protocols vary between laboratories, we encourage readers to use this report as a guide to select the most appropriate antibodies for their specific needs.