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Title: Sequence–Structure–Binding Relationships Reveal Adhesion Behavior of the Car9 Solid-Binding Peptide: An Integrated Experimental and Simulation Study

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.9b11617· OSTI ID:1595476

Solid-binding peptides (SBPs) recognizing inorganic and synthetic interfaces have enabled a broad range of materials science applications and hold promise as adhesive or morphogenetic control units that can be genetically encoded within desirable or designed protein frameworks. To date, the underlying relationships governing both SBP–surface and SBP–SBP interactions and how they give rise to different adsorption mechanisms remain unclear. In this work, we combine protein engineering, surface plasmon resonance characterization, and molecular dynamics (MD) simulations initiated from Rosetta predictions to gain insights on the interplay of amino acid composition, structure, self-association, and adhesion modality in a panel of variants of the Car9 silica-binding peptide (DSARGFKKPGKR) fused to the C-terminus of superfolder green fluorescent protein (sfGFP). Analysis of kinetics, energetics, and MD-predicted structures shows that the high-affinity binding of Car9 to the silanol-rich surface of silica is dominated by electrostatic contributions and a spectrum of several persistent interactions that, along with a high surface population of bound molecules, promote cooperative interactions between neighboring SBPs and higher order structure formation. Transition from cooperative to Langmuir adhesion in sfGFP-Car9 variants occurs in concert with a reduction of stable surface interactions and self-association, as confirmed by atomic force microscopy imaging of proteins exhibiting the two different binding behaviors. Here, we discuss the implications of these results for the de novo design of SBP–surface binding systems.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). The Center for the Science of Synthesis Across Scales (CSSAS); Univ. of Washington, Seattle, WA (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0019288; AC05-76RL01830
OSTI ID:
1595476
Journal Information:
Journal of the American Chemical Society, Vol. 142, Issue 5; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

References (47)

Introducing Protein Intrinsic Disorder journal December 2013
Engineering and characterization of a superfolder green fluorescent protein journal December 2005
Biomolecular Recognition Principles for Bionanocombinatorics: An Integrated Approach To Elucidate Enthalpic and Entropic Factors journal October 2013
Solid-state NMR studies of proteins immobilized on inorganic surfaces journal September 2015
Carbon-Binding Designer Proteins that Discriminate between sp 2 - and sp 3 -Hybridized Carbon Surfaces journal April 2013
Prediction of Specific Biomolecule Adsorption on Silica Surfaces as a Function of pH and Particle Size journal September 2014
Polycationic Peptides from Diatom Biosilica That Direct Silica Nanosphere Formation journal November 1999
Accurate de novo design of hyperstable constrained peptides journal September 2016
Functional analysis of the biomimetic silica precipitating activity of the R5 peptide from Cylindrotheca fusiformisElectronic supplementary information (ESI) available: HPLC and MALDI of peptides (11 pgs); EMs of silica particles (4 pgs); IR data (3 pgs); DLS data (1 pg) and mechanistic detail (1 pg). See http://www.rsc.org/suppdata/cc/b3/b309074d/ journal January 2003
Modeling the Cooperative Adsorption of Solid-Binding Proteins on Silica: Molecular Insights from Surface Plasmon Resonance Measurements journal March 2019
QCM-D Analysis of Binding Mechanism of Phage Particles Displaying a Constrained Heptapeptide with Specific Affinity to SiO 2 and TiO 2 journal July 2006
Interactions at the Silica–Peptide Interface: The Influence of Particle Size and Surface Functionality journal December 2013
Building two-dimensional materials one row at a time: Avoiding the nucleation barrier journal December 2018
Investigating the Role of Phosphorylation in the Binding of Silaffin Peptide R5 to Silica with Molecular Dynamics Simulations journal October 2017
Biomimetic synthesis and patterning of silver nanoparticles journal October 2002
Studying the Conformation of a Silaffin-Derived Pentalysine Peptide Embedded in Bioinspired Silica using Solution and Dynamic Nuclear Polarization Magic-Angle Spinning NMR journal April 2016
Silica Morphogenesis by Lysine-Leucine Peptides with Hydrophobic Periodicity journal June 2014
Protein- and Peptide-Directed Syntheses of Inorganic Materials journal November 2008
Structure of Peptides on Metal Oxide Surfaces Probed by NMR journal November 2011
Solid-State NMR Identification of Intermolecular Interactions in Amelogenin Bound to Hydroxyapatite journal November 2018
Emulating biology: Building nanostructures from the bottom up journal March 2002
A Hexapeptide Motif that Electrostatically Binds to the Surface of Titanium journal November 2003
Biointerface Structural Effects on the Properties and Applications of Bioinspired Peptide-Based Nanomaterials journal August 2017
Folding of the C-terminal bacterial binding domain in statherin upon adsorption onto hydroxyapatite crystals journal October 2006
Peptide Adsorption on Silica Nanoparticles: Evidence of Hydrophobic Interactions journal June 2012
Planar Stacking Interactions of Arginine and Aromatic Side-Chains in Proteins journal January 1994
Selection and analysis of solid-binding peptides journal August 2007
Structure and Dynamic Properties of a Ti-Binding Peptide Bound to TiO 2 Nanoparticles As Accessed by 1 H NMR Spectroscopy journal May 2016
Virus-Enabled Synthesis and Assembly of Nanowires for Lithium Ion Battery Electrodes journal May 2006
Diatom Mimics: Directing the Formation of Biosilica Nanoparticles by Controlled Folding of Lysine-Leucine Peptides journal October 2014
CHARMM: The biomolecular simulation program journal July 2009
Ordering of Quantum Dots Using Genetically Engineered Viruses journal May 2002
Chemistry of Aqueous Silica Nanoparticle Surfaces and the Mechanism of Selective Peptide Adsorption journal April 2012
Biomimetic Growth of Ultrathin Silica Sheets Using Artificial Amphiphilic Peptides journal September 2015
Affinity purification of Car9-tagged proteins on silica matrices: Optimization of a rapid and inexpensive protein purification technology journal July 2017
Platinum nanocrystals selectively shaped using facet-specific peptide sequences journal April 2011
Selective Labeling and Decoration of the Ends and Sidewalls of Single-Walled Carbon Nanotubes Using Mono- and Bispecific Solid-Binding Fluorescent Proteins journal February 2019
Thermodynamically Consistent Force Fields for the Assembly of Inorganic, Organic, and Biological Nanostructures: The INTERFACE Force Field journal January 2013
Direct and reversible immobilization and microcontact printing of functional proteins on glass using a genetically appended silica-binding tag journal January 2016
Molecular biomimetics: nanotechnology through biology journal September 2003
Streamlined Synthesis and Assembly of a Hybrid Sensing Architecture with Solid Binding Proteins and Click Chemistry journal March 2017
A sequence-function analysis of the silica precipitating silaffin R5 peptide: SILAFFIN R5 IN SILICA PRECIPITATION journal January 2014
Selection of peptides with semiconductor binding specificity for directed nanocrystal assembly journal June 2000
Toward a Structure Determination Method for Biomineral-Associated Protein Using Combined Solid- State NMR and Computational Structure Prediction journal December 2010
Self-Immobilization of Car9 Fusion Proteins within High Surface Area Silica Sol–Gels and Dynamic Control of Protein Release journal September 2016
Metal-recognition by repeating polypeptides journal March 1997
A cleavable silica-binding affinity tag for rapid and inexpensive protein purification: A Cleavable Silica-Binding Affinity Tag for Rapid journal June 2014