Penton protein

UniProtKB accession:  Q9QAH8
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Go to UniProtKB:  Q9QAH8
UniProtKB description:  Major capsid protein that self-associates to form penton base pentamers, each in the shape of a pentagon, situated at the 12 vertices of the pseudo T=25 capsid. Involved in virus secondary attachment to host cell after initial attachment by the fiber protein, and in endocytosis of virions. As the virus enters the host cell, penton proteins are shed concomitant with virion acidification in the endosome.
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