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2020 ; 22
(4-5
): 182-187
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Immunoinformatic analysis of the SARS-CoV-2 envelope protein as a strategy to
assess cross-protection against COVID-19
#MMPMID32446902
Tilocca B
; Soggiu A
; Sanguinetti M
; Babini G
; De Maio F
; Britti D
; Zecconi A
; Bonizzi L
; Urbani A
; Roncada P
Microbes Infect
2020[May]; 22
(4-5
): 182-187
PMID32446902
show ga
Envelope protein of coronaviruses is a structural protein existing in both
monomeric and homo-pentameric form. It has been related to a multitude of roles
including virus infection, replication, dissemination and immune response
stimulation. In the present study, we employed an immunoinformatic approach to
investigate the major immunogenic domains of the SARS-CoV-2 envelope protein and
map them among the homologue proteins of coronaviruses with tropism for animal
species that are closely inter-related with the human beings population all over
the world. Also, when not available, we predicted the envelope protein structural
folding and mapped SARS-CoV-2 epitopes. Envelope sequences alignment provides
evidence of high sequence homology for some of the investigated virus specimens;
while the structural mapping of epitopes resulted in the interesting maintenance
of the structural folding and epitope sequence localization also in the envelope
proteins scoring a lower alignment score. In line with the One-Health approach,
our evidences provide a molecular structural rationale for a potential role of
taxonomically related coronaviruses in conferring protection from SARS-CoV-2
infection and identifying potential candidates for the development of diagnostic
tools and prophylactic-oriented strategies.