F8A70A5A8614A834860816EAA4A066555983716C18EDADF56D1692F5F427B85BB4C1BD07BB963CEC335DC0B03B36078D

Specific enzymatic cleavages in vivo yield mature proteins. The precursor is processed into S1 and S2 by host cell furin or furin-like protease to yield the mature S1 and S2 proteins. The cleavage site between S1 and S2 requires the optimal sequence [KR]-X-[KR]-R. Cleavage is not necessary for virus-cell fusion, and fusion probably occurs at the host plasma membrane (By similarity).

Source:http://purl.uniprot.org/SHA-384/F8A70A5A8614A834860816EAA4A066555983716C18EDADF56D1692F5F427B85BB4C1BD07BB963CEC335DC0B03B36078D

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Predicate	Object
rdf:type	uniprot:PTM_Annotation
rdfs:comment	Specific enzymatic cleavages in vivo yield mature proteins. The precursor is processed into S1 and S2 by host cell furin or furin-like protease to yield the mature S1 and S2 proteins. The cleavage site between S1 and S2 requires the optimal sequence [KR]-X-[KR]-R. Cleavage is not necessary for virus-cell fusion, and fusion probably occurs at the host plasma membrane (By similarity).