*1.M.6 The Caulobacter* Phage Putative Spanin 6 (Spanin6) Family** The two proteins that comprise this family include an inner membrane and an outer membrane spanin component. Both have been identified and shown to be shared by several Caulobacter phage. However, only the larger of these two proteins (130 - 160 aas with1 or 2 N-terminal TMSs) are included in this family.
This family belongs to the Spanin Superfamily.
Examples:
TC#	Name	Organismal Type	Example
1.M.6.1.1	Putative spanin of 142 aas and 2 N-terminal TMSs.		Putative spanin of Methylosinus sporium

1.M.6.1.2	Putative spanin of 153 aas with 2 N-terminal TMSs. The sequence may be truncated at the N-terminus.		*Putative spanin of Rhodopseudomonas* sp. P2A-2r**

1.M.6.1.3	Putative spanin of 166 aas and 2 apparent TMSs adjacent to each other at the N-terminus of the protein.		Spanin of Bradyrhizobium sp., phage-like

1.M.6.1.4	Putative spanin of 146 aas and 2 N-terminal possible TMSs.		Uncharacterized protein of Rhodopseudomonas palustris

1.M.6.1.5	Uncharacterized putative spanin of 139 aas and 2 N-terminal TMSs.		UP of Ancylobacter pratisalsi

1.M.6.1.6	Putative gas vesicle protein (possible spanin) of 129 aas and 2 TMSs/		Possible spanin of Chthonomonas calidirosea