Source:http://linkedlifedata.com/resource/umls/id/C0071728
MSH: Porins are protein molecules that were originally found in the outer membrane of GRAM-NEGATIVE BACTERIA and that form multi-meric channels for the passive DIFFUSION of WATER; IONS; or other small molecules. Porins are present in bacterial CELL WALLS, as well as in plant, fungal, mammalian and other vertebrate CELL MEMBRANES and MITOCHONDRIAL MEMBRANES.,CSP: family of proteins used by lymphocytes and other cells to attack neighboring cells by forming pores in their outer membranes, leading to osmolysis; may be homologous to C9 complement.