The phrase "a head completion" is not correct and does not convey a clear meaning in written English.
It may be intended to refer to completing a task or project, but the phrase itself is ambiguous and lacks context.
Example: "The project requires a head completion to ensure all aspects are finalized before submission."
Alternatives: "a task completion" or "a project completion".
In addition, Sf6 bacteriophage also contains a separate scaffold protein and three other head completion genes [ 15].
Gp6 is essential at early steps of DNA packaging and for DNA translocation to the capsid interior, it affects the efficiency of DNA packaging, it is a central component of the headful sensor that determines the size of the packaged DNA molecule, and is essential for closure of the portal pore by the head completion proteins to prevent exit of the DNA encapsidated.
One of the exceptions was ORF9 in the head completion module.
Following the maturation of the procapsid are the two final stages, DNA packaging and head completion [ 25].
This production was so cursed that it was rumored composer Elliot Goldenthal Michael Collinss, Batman Forever, Heat, Frida) actually suffered a head injury before the score's completion.
A bioinformatics procedure was designed in order to systematically detect the phage head-completion and tail-completion proteins, also called head-to-tail connection proteins, within the Aclame database.
They comprise two head-completion proteins homologous to T4 gp13 (noted Ad2) and T4 gp14 (noted Hc2), and a tail-completion protein homologous to T4 gp15 (noted Tc2).
They adopt a structural organisation similar to that of the Siphoviridae phage SPP1 and comprise three head-to-tail connection proteins: two head-completion proteins homologous to SPP1 gp15 (Adaptor, noted Ad1) and SPP1 gp16 (Head closure, noted Hc1) and a tail-completion protein homologous to SPP1 gp17 (noted Tc1).
Type 3 necks have only two head-completion proteins, homologous to P22 gp4 (noted Ad3) and gp10 (noted Hc3), and Type 4 necks have just one connection protein, homologous to Φ29 lower collar/tail tube protein gp11 (noted Ad4) [ 52].
