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MP-SPR keyword: protein interaction

Peer-reviewed publications

Accurate Correction of the “Bulk Response” in Surface Plasmon Resonance Sensing Provides New Insights on Interactions Involving Lysozyme and Poly(ethylene glycol)

Publication year: 2022
Authors: Svirelis J. 1, Andersson J. 1, Stradner A. 2, Dahlin A. 1
Published in: ACS Sensors, 2022, Vol. 7, p. 1175-1182

Surface plasmon resonance is a very well-established surface sensitive technique for label-free analysis of biomolecular interactions, generating thousands of publications each year. An inconvenient effect that complicates interpretation of SPR results is the “bulk response” from molecules in solution, which generate signals without really binding to the surface. Here we present a physical model for…

Peer-reviewed publications

Different Oligomeric States of the Tumor Suppressor p53 Show Identical Binding Behavior Towards the S100beta Homodimer

Publication year: 2022
Authors: Wei A. 1, Iacobucci C. 1, Schultze W. 1, Ihling C. 1, Arlt C. 1, Sinz A. 1
Published in: ChemBioChem, 2022, Vol. 23, e202100665

The tumor suppressor protein p53 is a transcription factor that is referred to as the “guardian of the genome” and plays an important role in cancer development. P53 is active as a homotetramer; the S100β homodimer binds to the intrinsically disordered C-terminus of p53 affecting its transcriptional activity. The p53/S100β complex is regarded as highly…

Peer-reviewed publications

ORP2 interacts with phosphoinositides and controls the subcellular distribution of cholesterol

Publication year: 2019
Authors: Koponen A. a, Arora A. a, Takahashi K. b, Kentala H. a, Kivelä A.M. a, Jääskeläinen E. a, Peränen J. b, Somerharju P. c, Ikonen E. b, Viitala T. d, Olkkonen V.M. a,b
Published in: Biochimie, 2019, Vol. 158, p. 90-101

ORP2 is a sterol-binding protein with documented functions in lipid and glucose metabolism, Akt signaling, steroidogenesis, cell adhesion, migration and proliferation. Here we investigate the interactions of ORP2 with phosphoinositides (PIPs) by surface plasmon resonance (SPR), its affinity for cholesterol with a pull-down assay, and its capacity to transfer sterol in vitro. Moreover, we determine…

Peer-reviewed publications

Stable, nanometer‐thick oxygen‐containing plasma polymer films suited for enhanced biosensing

Publication year: 2018
Authors: Hegeman D. 1, Indutnyi I. 2, Zajickova L. 3,4, Makhneva E. 3,4, Farka Z. 3, Ushenin Y. 2, Vandenbossche M. 1
Published in: Plasma Processes and Polymers, 2018, e1800090

Stable surface functionalization is required in many applications such as in biosensing. For this purpose, hydrocarbon‐based plasma polymer films (PPFs) were investigated by controlling cross‐linking and film structure at the nanoscale, while functional groups were incorporated using a CO2/C2H4 low pressure plasma. In particular, an oxygen‐rich termination layer of 1 nm (top layer) was gradually deposited onto…