skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Engineering the entropy-driven free-energy landscape of a dynamic nanoporous protein assembly

Journal Article · · Nature Chemistry

De novo design and construction of stimuli-responsive protein assemblies that predictably switch between discrete conformational states remains an essential but highly challenging goal in biomolecular design. We previously reported synthetic, two dimensional protein lattices self-assembled via disulfide bonding interactions, which endows them with a unique capacity to undergo coherent conformational changes without losing crystalline order. Here, we carried out all-atom molecular dynamics simulations to map the free-energy landscape of these lattices, validated this landscape through extensive structural characterization by electron microscopy and established that it is predominantly governed by solvent reorganization entropy. Subsequent redesign of the protein surface with conditionally repulsive electrostatic interactions enabled us to predictably perturb the free-energy landscape and obtain a new protein lattice whose conformational dynamics can be chemically and mechanically toggled between three different states with varying porosities and molecular densities.

Research Organization:
Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Science Foundation (NSF)
Grant/Contract Number:
SC0003844; CHE-1453204; T32-GM08326
OSTI ID:
1507492
Journal Information:
Nature Chemistry, Vol. 10, Issue 7; ISSN 1755-4330
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 43 works
Citation information provided by
Web of Science

References (41)

Review on auxetic materials journal May 2004
Precise and Ultrafast Molecular Sieving Through Graphene Oxide Membranes journal February 2014
A Metal Organic Framework with Spherical Protein Nodes: Rational Chemical Design of 3D Protein Crystals journal September 2015
A designed supramolecular protein assembly with in vivo enzymatic activity journal December 2014
Water Mediation in Protein Folding and Molecular Recognition journal June 2006
Computational design of protein self-assembly journal August 2016
Principles of Crystal Nucleation and Growth journal January 2003
Generation of protein lattices by fusing proteins with matching rotational symmetry journal July 2011
Rational design of proteins that exchange on functional timescales journal October 2017
MoS2 Nanoparticles Grown on Graphene An Advanced Catalyst for the Hydrogen Evolution Reaction journal May 2011
Principles for designing ideal protein structures journal November 2012
Self-Assembly of Proteins into Designed Networks journal October 2003
Effect of Temperature on the Structure and Phase Behavior of Water Confined by Hydrophobic, Hydrophilic, and Heterogeneous Surfaces journal October 2009
Progress, Challenges, and Opportunities in Two-Dimensional Materials Beyond Graphene journal March 2013
Periodic Functionalization of Surface-Confined Pores in a Two-Dimensional Porous Network Using a Tailored Molecular Building Block journal January 2016
The Entropic Cost of Bound Water in Crystals and Biomolecules journal April 1994
THE weighted histogram analysis method for free-energy calculations on biomolecules. I. The method journal October 1992
Accurate design of megadalton-scale two-component icosahedral protein complexes journal July 2016
Auxetic behavior from rotating squares journal January 2000
Auxetic Materials: Functional Materials and Structures from Lateral Thinking! journal May 2000
Geometric Principles for Designing Highly Symmetric Self-Assembling Protein Nanomaterials journal May 2017
Structure, Dynamics, Assembly, and Evolution of Protein Complexes journal June 2015
Grid inhomogeneous solvation theory: Hydration structure and thermodynamics of the miniature receptor cucurbit[7]uril journal July 2012
Metal-Directed Protein Self-Assembly journal May 2010
Comparing distance metrics for rotation using the k -nearest neighbors algorithm for entropy estimation journal December 2013
De novo design of a transmembrane Zn 2+ -transporting four-helix bundle journal December 2014
Convergence and error estimation in free energy calculations using the weighted histogram analysis method journal November 2011
Heterotetramers Formed by an S-Layer-Streptavidin Fusion Protein and Core-Streptavidin as a Nanoarrayed Template for Biochip Development journal January 2006
ZiCo:  A Peptide Designed to Switch Folded State upon Binding Zinc journal November 2005
S-layer-coated liposomes as a versatile system for entrapping and binding target molecules journal January 2000
Metal-directed, chemically tunable assembly of one-, two- and three-dimensional crystalline protein arrays journal March 2012
Self-assembly of coherently dynamic, auxetic, two-dimensional protein crystals journal May 2016
An extended dynamical hydration shell around proteins journal December 2007
New Look at Hemoglobin Allostery journal January 2015
Serine Protease Mechanism and Specificity journal December 2002
Motifs for molecular recognition exploiting hydrophobic enclosure in protein–ligand binding journal January 2007
Computational Design of a Single Amino Acid Sequence that Can Switch between Two Distinct Protein Folds journal February 2006
Dissecting the THz spectrum of liquid water from first principles via correlations in time and space journal June 2010
The Dynamics of Protein Hydration Water: A Quantitative Comparison of Molecular Dynamics Simulations and Neutron-scattering Experiments journal December 2000
Serine Protease Mechanism and Specificity journal February 2003
Precise and ultrafast molecular sieving through graphene oxide membranes text January 2014

Cited By (2)

Supercharging enables organized assembly of synthetic biomolecules journal January 2019
Annealing multicomponent supramolecular gels journal January 2019

Similar Records

Entropic control of the free-energy landscape of an archetypal biomolecular machine
Journal Article · Mon May 15 00:00:00 EDT 2023 · Proceedings of the National Academy of Sciences of the United States of America · OSTI ID:1507492

Hyperexpandable, self-healing macromolecular crystals with integrated polymer networks
Journal Article · Tue May 01 00:00:00 EDT 2018 · Nature (London) · OSTI ID:1507492

Connecting the Kinetics and Energy Landscape of tRNA Translocation on the Ribosome
Journal Article · Thu Mar 21 00:00:00 EDT 2013 · PLoS Computational Biology (Online) · OSTI ID:1507492

Related Subjects