A-1 holin family
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The Actinobacterial 1 TMS Holin (A-1 Holin) Family (TC# 1.E.32) consists of proteins found in actinobacteria, their conjugative plasmids and their phage.[1] They are usually between 90 and 140 amino acyl residues (aas) in length and exhibit 1 or sometimes even 2 transmembrane segments despite the families name (i.e., TC# 1.E.32.2.1). Although some are annotated as phage proteins or holins, members of the A-1 family are not yet functionally characterized. A representative list of proteins belonging to the A-1 Holin family can be found in the Transporter Classification Database (TCDB).[2]
