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Porin Superfamilies
Porin may refer to: * Porin (protein), a transmembrane protein * ''Porin'' (opera), a Croatian grand opera, first performed in 1897 * Porin (music award), Croatian music industry award, first awarded in 1994 and named after the opera {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porin (protein)
Porins are beta barrel proteins that cross a cellular membrane and act as a pore, through which molecules can diffuse. Unlike other membrane transport proteins, porins are large enough to allow passive diffusion, i.e., they act as channels that are specific to different types of molecules. They are present in the outer membrane of gram-negative bacteria and some gram-positive mycobacteria (mycolic acid-containing actinomycetes), the outer membrane of mitochondria, and the outer chloroplast membrane (outer plastid membrane). Structure Porins are composed of beta sheets (β sheets) made up of beta strands (β strands) which are linked together by beta turns on the cytoplasmic side and long loops of amino acids on the other. The β strands lie in an antiparallel fashion and form a cylindrical tube, called a beta barrel (β barrel). The amino acid composition of the porin β strands are unique in that polar and nonpolar residues alternate along them. This means that the nonpolar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porin (opera)
''Porin'' is a grand opera by Vatroslav Lisinski. The Croatian language, Croatian text was by Dimitrija Demeter. It was Lisinski's second opera, the second for Croatia. It was composed during 1848-51 but not performed until 2 October 1897, when it was staged in Zagreb. Sources * ''Lisinski, Vatroslav'' by Lovro Županović, in 'The New Grove Dictionary of Opera', ed. Stanley Sadie (London, 1992) Compositions by Vatroslav Lisinski Croatian-language operas 1897 operas Operas {{opera-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |