*1.B.37 The Leptospira* Porin OmpL1 (LP-OmpL1) Family** Spirochetes of the genus Leptospira possess integral outer membrane β-porins, OmpL1, that can form trimeric structures (Shang et al., 1995). OmpL1 has been reconstituted in planar lipid bilayers where an average single channel conductance of 1.1 nS, similar to the major porin activity of native leptospiral membranes, was demonstrated. Haake and Matsunaga (2010) have reviewed the properties of Leptospiral outer membrane proteins. The reaction catalyzed by OmpL1 is: small molecules (periplasm) small molecules (out)
References:
Haake DA. and Matsunaga J. (2010). Leptospira: a spirochaete with a hybrid outer membrane. Mol Microbiol. 77(4):805-14.
Shang, E.S., M.M. Exner, T.A. Summers, C. Martinich, C.I. Champion, R.E. Hancock, and D.A. Haake. (1995). The rare outer membrane protein, OmpL1, of pathogenic Leptospira species is a heat-modifiable porin. Infect. Immun. 63: 3174-3181.
Examples:
TC#	Name	Organismal Type	Example
1.B.37.1.1	The OmpL1 porin	*Spirochetes (Leptospira* species)**	OmpL1 of Leptospira kirschneri

1.B.37.1.2	OmpL1	Spirochaetes	OmopL1 of Leptonema illini

Examples:
TC#	Name	Organismal Type	Example
1.B.37.2.1	δ-proteobacterial OmpL1 homologue	δ-Proteobacteria	*Homologue of OmpL1 in Haliangium ochraceum* (D0LRV8)**