Question

Where are porins present?

Answer 1

Porins:

1. Porins are pore-forming proteins.
2. They are beta-barrel proteins formed from a 16-stranded antiparallel beta-sheet.
3. They allow hydrophilic solutes to diffuse.

Location:

1. They are present in the outer membrane of gram-negative bacteria.
2. They are also present in the outer membrane of mitochondria.