Phage r1t holin family

Family of putative pore-forming proteins

The Lactococcus lactis Phage r1t Holin Family is a family of putative pore-forming proteins that typically range in size between about 65 and 95 amino acyl residues (aas) in length, although a few r1t holins have been found to be significantly larger. Phage r1t holins exhibit between 2 and 4 transmembrane segments (TMSs), with the 4 TMS proteins resulting from an intragenic duplication of a 2 TMS region. A representative list of the proteins belonging to the r1t holin family can be found in the Transporter Classification Database.

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