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Related Experiment Video

Updated: Apr 8, 2026

Single-Molecule Localization Microscopy of Membrane Proteins using Single-Antibody Labeling
07:51

Single-Molecule Localization Microscopy of Membrane Proteins using Single-Antibody Labeling

Published on: March 20, 2026

235

Single-Molecule Localization Microscopy of Membrane Proteins using Single-Antibody Labeling.

Neal T Ramseier1, Herath D W Herath1, Alyssa Burgess1

  • 1Department of Chemistry, University of Illinois Chicago.

Journal of Visualized Experiments : Jove
|April 6, 2026
PubMed
Summary
This summary is machine-generated.

We developed membrane single-antibody labeling (mSAL), a super-resolution microscopy technique. mSAL visualizes nanoscale membrane protein distribution and cell morphology, aiding antibody therapeutics development.

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Area of Science:

  • Cell Biology
  • Microscopy
  • Immunology

Background:

  • Plasma membrane proteins are crucial for cell function and therapeutic targets.
  • Super-resolution microscopy is vital for understanding protein organization.
  • Existing methods face challenges in visualizing plasma membrane proteins.

Purpose of the Study:

  • To present a novel super-resolution microscopy protocol for plasma membrane proteins.
  • To enable nanoscale visualization of membrane protein distribution and cell morphology.
  • To facilitate the study of antibody-target interactions in native membrane environments.

Main Methods:

  • Developed membrane single-antibody labeling (mSAL), a time-lapse SMLM approach.
  • Optimized antibody concentration, laser power, and imaging parameters.
  • Applied density-based cluster analysis for nanoscale distribution analysis.

Main Results:

  • Successfully resolved nanoscale distribution of membrane proteins (CD81) in mammalian cells.
  • Demonstrated capability in both adherent and suspension cell types.
  • Enabled visualization of membrane morphology with nanoscale precision.

Conclusions:

  • mSAL is an effective technique for super-resolving cell membranes and protein distributions.
  • This method advances cell biology and antibody therapeutic research.
  • mSAL allows investigation of therapeutic antibody pharmacodynamics in situ.