Viral genome packaging machines: Structure and enzymology

CE Catalano, MC Morais - The Enzymes, 2021 - Elsevier
Although the process of genome encapsidation is highly conserved in tailed bacteriophages
and eukaryotic double-stranded DNA viruses, there are two distinct packaging pathways that …

Controlling the revolving and rotating motion direction of asymmetric hexameric nanomotor by arginine finger and channel chirality

P Guo, D Driver, Z Zhao, Z Zheng, C Chan, X Cheng - ACS nano, 2019 - ACS Publications
Nanomotors in nanotechnology are as important as engines in daily life. Many ATPases are
nanoscale biomotors classified into three categories based on the motion mechanisms in …

Atomistic basis of force generation, translocation, and coordination in a viral genome packaging motor

J Pajak, E Dill, E Reyes-Aldrete, MA White… - Nucleic acids …, 2021 - academic.oup.com
Double-stranded DNA viruses package their genomes into pre-assembled capsids using
virally-encoded ASCE ATPase ring motors. We present the first atomic-resolution crystal …

Structural basis of DNA packaging by a ring-type ATPase from an archetypal viral system

HKH Fung, S Grimes, A Huet, RL Duda… - Nucleic acids …, 2022 - academic.oup.com
Many essential cellular processes rely on substrate rotation or translocation by a multi-
subunit, ring-type NTPase. A large number of double-stranded DNA viruses, including tailed …

Viral packaging ATPases utilize a glutamate switch to couple ATPase activity and DNA translocation

J Pajak, R Atz, BJ Hilbert, MC Morais… - Proceedings of the …, 2021 - National Acad Sciences
Many viruses utilize ringed packaging ATPases to translocate double-stranded DNA into
procapsids during replication. A critical step in the mechanochemical cycle of such ATPases …

Functional dissection of a viral DNA packaging Machine's Walker B Motif

D Ortiz, M Ordyan, J Pajak, J Sippy, A Catala… - Journal of molecular …, 2019 - Elsevier
Many viruses employ ATP-powered motors for genome packaging. We combined genetic,
biochemical, and single-molecule techniques to confirm the predicted Walker-B ATP-binding …

Phenanthridine derivatives as potential HIV‑1 protease inhibitors

PV Ershov, YV Мezentsev… - Biomedical …, 2020 - spandidos-publications.com
In the present study, the antiviral activity of phenanthridine derivatives was assessed. In
total, the inhibitory effect of eight structurally similar low‑molecular‑weight hydrophobic …

Molecular dynamics of DNA translocation by FtsK

J Pajak, G Arya - Nucleic Acids Research, 2022 - academic.oup.com
The bacterial FtsK motor harvests energy from ATP to translocate double-stranded DNA
during cell division. Here, we probe the molecular mechanisms underlying coordinated DNA …

Regulation of phage lambda packaging motor-DNA interactions: Nucleotide independent and dependent gripping and friction

B Rawson, M Ordyan, Q Yang, J Sippy, M Feiss… - bioRxiv, 2022 - biorxiv.org
Many viruses utilize ATP-powered motors to package DNA into viral capsids. Here we use
single DNA manipulation with optical tweezers and rapid solution exchange to interrogate …

ATP serves as a nucleotide switch coupling the genome maturation and packaging motor complexes of a virus assembly machine

Q Yang, CE Catalano - Nucleic Acids Research, 2020 - academic.oup.com
The assembly of double-stranded DNA viruses, from phages to herpesviruses, is strongly
conserved. Terminase enzymes processively excise and package monomeric genomes …