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. 1989 Jul;86(13):4808–4812. doi: 10.1073/pnas.86.13.4808

F-actin affinity chromatography: technique for isolating previously unidentified actin-binding proteins.

K G Miller 1, B M Alberts 1
PMCID: PMC297504  PMID: 2740328

Abstract

We have developed stable and easy to use filamentous actin (F-actin) affinity-chromatography columns that selectively purify proteins that bind to actin filaments from cell extracts. Most traditional assays for actin-associated proteins screen for their effects on actin polymerization or actin filament crosslinking. Because our technique requires only actin-filament binding, it can identify additional types of proteins involved in the function of the actin cytoskeleton. By chromatographing extracts of several types of cells on these columns, we show that known actin-binding proteins are selectively retained as a subset of a larger group of actin-binding proteins that have not been identified previously.

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Selected References

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