comments_of_protein_by_blattner = {('B0957', 'H2Otex') : """(OmpA is a member of the OmpA-OmpF Porin (OOP) family. OmpA is believed to be a nonspecific diffusion channel, allowing various small solutes to cross the outer membrane. |CITS: [1370823]| It is also believed to serve several other functions including, as a phage receptor |CITS: [330500]| , as a mediator of F-factor dependent conjugation |CITS: [323051]|, and in shape stabilization of the bacterium. It is 325 amino acids long and is one of the most abundant proteins in the outer membrane of E. coli. Structural data at 1.65 angstroms reveals that OmpA consists of an eight-stranded all-next-neighbor antiparallel beta-barrel. There is some debate asto whether OmpA is truly a channel having both open and closed conformation |CITS: [7517935]| , or whether the observed porin activity is artifactual. OmpA was found as a dimer in the outer membrane |CITS:[16079137]|. Targeting of OmpA to the Sec-translocase for transport across the inner membrane is SecB-dependent |CITS:[16352602]|.)""", ('B3875', 'H2Otex') : """(OmpL is a member of the OmpG porin Family. It has been shown to localize to the outer membrane and exhibits porin type properties allowing a non-specific group of solutes smaller than 600 Daltons to pass into and out of the periplasm. |CITS: [11080145]| Sequence analysis suggests that it has a β-barrel structure consisting of 12 β-strands. |CITS: [11080145]| It has also been claimed to have an effect on redox potential in the periplasm |CITS: [11080145]|, however this point is currently contested. |CITS: [12660153]| OmpL also shows a low, but possibly significant similarity to members of the Cyclodextrin Porin (CDP) family. |CITS: [12192075]|)""", }