Analysis of Ribosomal Proteins from Various Species of Algae Comparative Electrophoretic Study on Proteins from Chloroplast Ribosomes

Abstract

The proteins from chloroplast ribosomal subunits of seven species of algae were characterized by two-dimensional gel electrophoresis. The protein patterns from the chloroplast ribosomal subunits were compared to those of Chlamydomonas reinhardii . A high degree of evolutionary conservation was found among the ribosomal proteins of the different species. For Chlamydomonas eugametos 26, Chlamydomonas noctigama 27, Chlorogonium elongatum 30, Scenedesmus obliquus 25, Euglena gracilis 18 proteins were found to be homologous to corresponding proteins in Chlamydomonas reinhardii . On the whole, the chloroplast ribosomal protein patterns differed slightly more on average than the cytoplasmic ribosomal protein patterns of these species. No homologies were detected between chloroplast and cytoplasmic ribosomal proteins of the same species.