2/3 holin family
The 2 or 3 TMS Putative Holin Family consists of many bacterial proteins ranging in size from about 70 to 120 amino acyl residues in length that exhibit 2 or 3 predicted transmembrane segments. Although annotated as holins, these proteins are not yet functionally characterized. A representative list of proteins belonging to the 2/3 Holin family can be found in the .