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2015 ; 7
(6
): 2858-83
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Protein-Protein Interactions of Viroporins in Coronaviruses and Paramyxoviruses:
New Targets for Antivirals?
#MMPMID26053927
Torres J
; Surya W
; Li Y
; Liu DX
Viruses
2015[Jun]; 7
(6
): 2858-83
PMID26053927
show ga
Viroporins are members of a rapidly growing family of channel-forming small
polypeptides found in viruses. The present review will be focused on recent
structural and protein-protein interaction information involving two viroporins
found in enveloped viruses that target the respiratory tract; (i) the envelope
protein in coronaviruses and (ii) the small hydrophobic protein in
paramyxoviruses. Deletion of these two viroporins leads to viral attenuation in
vivo, whereas data from cell culture shows involvement in the regulation of
stress and inflammation. The channel activity and structure of some
representative members of these viroporins have been recently characterized in
some detail. In addition, searches for protein-protein interactions using
yeast-two hybrid techniques have shed light on possible functional roles for
their exposed cytoplasmic domains. A deeper analysis of these interactions should
not only provide a more complete overview of the multiple functions of these
viroporins, but also suggest novel strategies that target protein-protein
interactions as much needed antivirals. These should complement current efforts
to block viroporin channel activity.