A proline insertion-deletion in the spike glycoprotein fusion peptide of mouse hepatitis virus strongly alters neuropathology

M Singh, A Kishore, D Maity, P Sunanda… - Journal of Biological …, 2019 - ASBMB
Fusion peptides (FPs) in spike proteins are key players mediating early events in cell-to-cell
fusion, vital for intercellular viral spread. A proline residue located at the central FP region …

One proline deletion in the fusion peptide of neurotropic mouse hepatitis virus (MHV) restricts retrograde axonal transport and neurodegeneration

SS Rout, M Singh, KS Shindler, JD Sarma - Journal of Biological Chemistry, 2020 - ASBMB
Mouse hepatitis virus (MHV; murine coronavirus) causes meningoencephalitis, myelitis, and
optic neuritis followed by axonal loss and demyelination. This murine virus is used as a …

A 12-amino acid stretch in the hypervariable region of the spike protein S1 subunit is critical for cell fusion activity of mouse hepatitis virus

CW Tsai, SC Chang, MF Chang - Journal of Biological Chemistry, 1999 - ASBMB
The spike (S) glycoprotein of mouse hepatitis virus (MHV) plays a major role in the viral
pathogenesis. It is often processed into the N-terminal S1 and the C-terminal S2 subunits …

Coronavirus-induced membrane fusion requires the cysteine-rich domain in the spike protein

KW Chang, YW Sheng, JL Gombold - Virology, 2000 - Elsevier
The spike glycoprotein of mouse hepatitis virus strain A59 mediates the early events leading
to infection of cells, including fusion of the viral and cellular membranes. The spike is a type I …

Variations in disparate regions of the murine coronavirus spike protein impact the initiation of membrane fusion

DK Krueger, SM Kelly, DN Lewicki, R Ruffolo… - Journal of …, 2001 - Am Soc Microbiol
The prototype JHM strain of murine hepatitis virus (MHV) is an enveloped, RNA-containing
coronavirus that has been selected in vivo for extreme neurovirulence. This virus encodes …

The virulence of mouse hepatitis virus strain A59 is not dependent on efficient spike protein cleavage and cell-to-cell fusion

ST Hingley, I Leparc-Goffart, S Seo, JC Tsai… - Journal of …, 2002 - Taylor & Francis
The cleavage and fusion properties of recombinant murine hepatitis viruses (MHV) were
examined to assess the role of the cleavage signal in determining the extent of S protein …

[HTML][HTML] Amino acid substitutions within the heptad repeat domain 1 of murine coronavirus spike protein restrict viral antigen spread in the central nervous system

JC Tsai, L de Groot, JD Pinon, KT Iacono, JJ Phillips… - Virology, 2003 - Elsevier
Targeted recombination was carried out to select mouse hepatitis viruses (MHVs) in a
defined genetic background, containing an MHV-JHM spike gene encoding either three …

Roles in cell-to-cell fusion of two conserved hydrophobic regions in the murine coronavirus spike protein

Z Luo, SR Weiss - Virology, 1998 - Elsevier
The spike (S) protein of coronavirus, mouse hepatitis virus (MHV), mediates attachment and
fusion during viral entry and cell-to-cell fusion later in infection. By analogy with other viral …

Multiple regions of the murine coronavirus spike glycoprotein influence neurovirulence

JJ Phillips, MM Chua, S Seo, SR Weiss - Journal of neurovirology, 2001 - Springer
The spike (S) glycoprotein of mouse hepatitis virus (MHV) is a major determinant of
neurovirulence. Using targeted recombination we previously demonstrated that the S gene …

Demyelination determinants map to the spike glycoprotein gene of coronavirus mouse hepatitis virus

J Das Sarma, L Fu, JC Tsai, SR Weiss, E Lavi - Journal of virology, 2000 - Am Soc Microbiol
Demyelination is the pathologic hallmark of the human immune-mediated neurologic
disease multiple sclerosis, which may be triggered or exacerbated by viral infections …