1. Cooperation with pili for CR3-mediated internalization is another function of porins . 2. Strains of the same species can express different porins . 3. General diffusion porins usually assemble as a beta strands. 4. Porins are also an important factor for complement inhibition for both pathogenic and commensal species.5. Porins are important for nutrient acquisition.6. It has been shown that a number of porins are evolutionarily related, and these porins are: 7. It has been shown that a number of porins are evolutionarily related, and these porins are: 8. Beta-lactam and fluoroquinolone antibiotics must pass through porins to reach their targets in gram negative bacteria. 9. Porins are chemically selective transporting only one group of molecules or may be specific for one molecule.10. Unlike the outer membrane, the inner membrane doesn't contain porins , and is highly impermeable to all molecules.
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