Head completion protein gp16

UniProtKB accession:  O48446

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UniProtKB description:  Functions as a stopper that is part of the head-tail connector and that locks the viral DNA in the capsid. Following tail attachment to the entry receptor, seems to open by a diaphragm-like motion, allowing the genome to exit the capsid through the tail tube to the host cell. During assembly, functions as a docking platform which the preassembled tail tapered by the head-tail joining protein gp17 can bind to.