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A Barcoding Strategy Enabling Higher-Throughput Library Screening by Microscopy.

Robert Chen^1,2, Harneet S Rishi^1,2, Vladimir Potapov^1,2

¹Department of Bioengineering, §Department of Chemical and Biomolecular Engineering, and ⊥Department of Molecular and Cell Biology, University of California, Berkeley , Berkeley, California 94720, United States.

ACS Synthetic Biology

|July 10, 2015

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This summary is machine-generated.

Researchers developed microscopy-readable barcodes (MiCodes) to speed up cell engineering. This innovation enables high-throughput screening of cellular phenotypes using microscopy, accelerating biological research.

Area of Science:

Synthetic biology
Cellular engineering
High-throughput screening

Background:

The test phase of cell engineering is often a bottleneck due to slow analytical measurements of cellular phenotypes.
Microscopy is powerful for observing phenotypes like motility and localization but is typically low-throughput.
Existing methods struggle to rapidly analyze large libraries of engineered cells.

Discussion:

Microscopy-readable barcodes (MiCodes) were developed using fluorescent proteins targeted to specific organelles.
Each MiCode is genetically linked to a library member, allowing parallel phenotype analysis via microscopy.
This system overcomes the throughput limitations of traditional microscopy-based assays.

Key Insights:

A novel microscopy-readable two-hybrid fluorescence localization assay was created for probing protein interactions.

Keywords:

coiled-coil zippers library screening microscopy barcodes synthetic biology

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An 8x8 matrix of synthetic coiled-coil leucine zipper proteins was tested for specific interactions using MiCodes.

MiCodes enable parallel screening of cellular phenotypes in mixed cell populations.

Outlook:

This platform offers a generalizable and scalable solution for high-throughput microscopy screening.
It integrates the power of imaging with combinatorial search strategies for biological discovery.
Future applications include accelerating the discovery of novel protein interactions and cellular functions.