*1.E.47 The Caulobacter* Phage Holin (CauHol) Family** The CauHol family consists of several putative holins of 157 - 159 aas with 2 TMSs. They derive from phage specific for Caulobacter species. There were half a dozen such proteins in the NCBI protein database as of March 2013.
Examples:
TC#	Name	Organismal Type	Example
1.E.47.1.1	Putative holin of 159 aas and 2 TMSs	α-Proteobacterial phage	*Putative holin of Caulobacter* phage CorMagneto**

1.E.47.1.2	Putative holin of 157 aas and 2 TMSs	α-Proteobacterial phage	*Putative holin of Caulobacter* phage CorColossus**