Biophysical Characterisation and Quantification of Nucleic Acid-Protein Interactions: EMSA, MST and SPR

Author(s): Janine K. Flores, Ruvini Kariawasam, Adrian X. Gimenez, Stephanie Helder, Liza Cubeddu, Roland Gamsjaeger, Sandro F. Ataide.

Journal Name: Current Protein & Peptide Science

Volume 16 , Issue 8 , 2015

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Graphical Abstract:


Cell viability is only possible due to a dynamic range of essential nucleic acid-protein complex formation. DNA replication and repair, gene expression, transcription and protein synthesis are well-known processes mediated by nucleic acids (DNA and RNA) - protein interactions. Novel nucleic acid- protein complexes have been identified in the past few years aided by the development of numerous new techniques such as RNA capture or Tandem RNA Affinity Purification (TRAP). However, the biophysical and biochemical details of these interactions are mostly unknown. Here, we present three techniques (Electrophoretic Mobility Shift Assays, Microscale Thermophoresis and Surface Plasmon Resonance) that are commonly used to quantify and characterize DNA-protein and RNA-protein interactions and discuss their main advantages and limitations.

Keywords: RNA-Protein interaction, DNA-protein interaction, SRP72, SRP RNA, hSSB2, ssDNA, EMSA, Microscale Thermophoresis, Surface Plasmon Resonance.

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Article Details

Year: 2015
Page: [727 - 734]
Pages: 8
DOI: 10.2174/1389203716666150505230806
Price: $65

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