TCDB is operated by the Saier Lab Bioinformatics Group

1.B.70 The Outer Membrane Channel (OMC) Family

The OMC family consists of putative porins that are homologous to many other porins although this particular family is poorly characterized.  These proteins are derived from proteobacteria of the alpha, beta and gamma subphyla as well as chlorobi and planctomycetes and probably other phyla.  They are therefore wide spread in Gram-negative bacteria.

References associated with 1.B.70 family:

Crook, M.B., A.L. Draper, R.J. Guillory, and J.S. Griffitts. (2013). The Sinorhizobium meliloti essential porin RopA1 is a target for numerous bacteriophages. J. Bacteriol. 195: 3663-3671. 23749981
de María, N., A. Guevara, M.T. Serra, I. García-Luque, A. González-Sama, M. García de Lacoba, M.R. de Felipe, and M. Fernández-Pascual. (2007). Putative porin of Bradyrhizobium sp. (Lupinus) bacteroids induced by glyphosate. Appl. Environ. Microbiol. 73: 5075-5082. 17557843
González-Sánchez, A., C.A. Cubillas, F. Miranda, A. Dávalos, and A. García-de Los Santos. (2018). The ropAe gene encodes a porin-like protein involved in copper transit in Rhizobium etli CFN42. Microbiologyopen 7: e00573. 29280343
Kang, J.G., H.W. Lee, S. Ko, and J.S. Chae. (2018). Comparative proteomic analysis of outer membrane protein 43 (43)-deficient. J Vet Sci 19: 59-70. 28693313
Kosolapova, A.O., M.V. Belousov, A.I. Sulatskaya, M.E. Belousova, M.I. Sulatsky, K.S. Antonets, K.V. Volkov, A.N. Lykholay, O.Y. Shtark, E.N. Vasileva, V.A. Zhukov, A.N. Ivanova, P.A. Zykin, I.M. Kuznetsova, K.K. Turoverov, I.A. Tikhonovich, and A.A. Nizhnikov. (2019). Two Novel Amyloid Proteins, RopA and RopB, from the Root Nodule Bacterium. Biomolecules 9:. 31690032
Leclercq, S.O., A. Cloeckaert, and M.S. Zygmunt. (2019). Taxonomic Organization of the Family Based on a Phylogenomic Approach. Front Microbiol 10: 3083. 32082266
Vassen, V., C. Valotteau, C. Feuillie, C. Formosa-Dague, Y.F. Dufrêne, and X. De Bolle. (2019). Localized incorporation of outer membrane components in the pathogen. EMBO. J. 38:. 30635335