Applications of atomic force microscopy in modern biology

T Nandi, SRK Ainavarapu - Emerging Topics in Life Sciences, 2021 - portlandpress.com
Single-molecule force spectroscopy (SMFS) is an emerging tool to investigate mechanical
properties of biomolecules and their responses to mechanical forces, and one of the most …

Does protein unfolding play a functional role in vivo?

S Sharma, S Subramani, I Popa - The FEBS Journal, 2021 - Wiley Online Library
Unfolding and refolding of multidomain proteins under force have yet to be recognized as a
major mechanism of function for proteins in vivo. In this review, we discuss the inherent …

Binding-induced stabilization measured on the same molecular protein substrate using single-molecule magnetic tweezers and heterocovalent attachments

N Dahal, J Nowitzke, A Eis, I Popa - The Journal of Physical …, 2020 - ACS Publications
Binding-induced mechanical stabilization plays key roles in proteins involved in muscle
contraction, cellular mechanotransduction, or bacterial adhesion. Because of the vector …

Pioglitazone inhibits metal cluster transfer of mitoNEET by stabilizing the labile Fe–N bond revealed at single-bond level

G Song, F Tian, H Liu, G Li, P Zheng - The Journal of Physical …, 2021 - ACS Publications
Outer mitochondrial membrane protein mitoNEET (mNT) is a target of the type 2 diabetes
drug pioglitazone. It contains a labile Fe2S2 (His) 1 (Cys) 3 metal cluster with a single Fe–N …

Single-molecule force spectroscopy reveals that the fe–n bond enables multiple rupture pathways of the 2fe2s cluster in a mitoneet monomer

G Song, X Ding, H Liu, G Yuan, F Tian, S Shi… - Analytical …, 2020 - ACS Publications
The mitochondrial outer membrane protein, mitoNEET (mNT), is an iron–sulfur protein
containing an Fe2S2 (His) 1 (Cys) 3 cluster with a unique single Fe–N bond. Previous …

Verification of sortase for protein conjugation by single-molecule force spectroscopy and molecular dynamics simulations

F Tian, G Li, B Zheng, Y Liu, S Shi, Y Deng… - Chemical …, 2020 - pubs.rsc.org
Sortase is one of the most widely used enzymes for covalent protein conjugation that links
protein and protein/small molecules together in a site-specific way. It typically recognizes the …

Multimodal response to copper binding in superoxide dismutase dynamics

M Bonaccorsi, MJ Knight, T Le Marchand… - Journal of the …, 2020 - ACS Publications
Copper/zinc superoxide dismutase (SOD) is a homodimeric metalloenzyme that has been
extensively studied as a benchmark for structure–function relationships in proteins, in …

Transforming de novo protein α 3 D into a mechanically stable protein by zinc binding

Z Wang, J Nie, S Shi, G Li, P Zheng - Chemical Communications, 2021 - pubs.rsc.org
α3D is a de novo designed three-helix bundle protein. Like most naturally occurring helical
proteins, it is mechanically labile with an unfolding force of< 15 pN, revealed by atomic force …

Mechanical Unfolding Pathway of the High-Potential Iron–Sulfur Protein Revealed by Single-Molecule Atomic Force Microscopy: Toward a General Unfolding …

J Li, H Li - The Journal of Physical Chemistry B, 2018 - ACS Publications
High-potential iron–sulfur proteins (HiPIPs) are an important class of metalloproteins with a
[4Fe–4S] cluster coordinated by four cysteine residues. Distinct from other iron–sulfur …

Exploration of metal-ligand coordination bonds in proteins by single-molecule force spectroscopy

J Nie, F Tian, B Zheng, Z Wang, P Zheng - Chemistry Letters, 2021 - academic.oup.com
Thanks to the binding of various metal ions, metalloprotein plays an essential role in many
different biological processes and represents an indispensable protein subgroup. Thus, the …