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Mature
Head
-
1100S
of
Phage
T4 -
The mature head is completely filled NA. gp49 is required to fill the beads normally with DNA 49 mutants accumulate half filled heads similar to prohead III structures.
During the formation of the mature head, further enzymic cleavage of gp20, gp24 and gpIPIII takes place. The products of gp13, gp14 and gp wac render one apex of the icosahedron receptive to the tail structure
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