1.B.87. The Outer Membrane beta-Barrel Porin (OMPP) Family These protein homologs are numberous and consist of outer membrane β-barrel proteins of bacteria. They are of about uniform sizes of about 180 amino acid residues.
This family belongs to the Outer Membrane Pore-forming Protein I (OMPP-I) Superfamily .
Examples:
TC#	Name	Organismal Type	Example
1.B.87.1.1	Putative porin of 169 aas with 1 N-terminal TMS.		Putative porin of Idiomarina baltica

1.B.87.1.2	Outer membrane β-barrel putative porin of 170 aas and 1 N-terminal TMS.		Porin of Thalassotalea fonticola

1.B.87.1.3	Putative porin of 174 aas with 1 N-terminal TMS.		Porin of Brevundimonas fluminis

1.B.87.1.4	Putative porin of 171 aas with 1 N-terminal TMS.		Porin of Unclassified Limnobacter

1.B.87.1.5	Putative porin of 173 aas and 1 N-terminal TMS.		*Porin of Ramlibacter* sp.**