Tape measure protein pb2 precursor

UniProtKB accession:  Q6QGE7

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UniProtKB description:  Functions as a tape measure protein that serves as a base for tail tube protein polymerization and acts as a template for tail length determination (PubMed:18348984, PubMed:36961893). Fills the tail tube with its long coiled-coil domain and is expelled during the conformation changes that follow T5 binding to host FhuA (PubMed:18348984, PubMed:36961893). Forms a channel through the outer-membrane after binding of the receptor binding protein pb5 with the host receptor FhuA (PubMed:36961893).