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Biosynthesis of pigment‐protein complex polypeptides in bacteriochlorophyll‐less mutant cells of Rhodopseudomonas capsulata YS
Author(s) -
Dierstein Roland
Publication year - 1983
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(83)80983-1
Subject(s) - bacteriochlorophyll , mutant , immunoprecipitation , pigment , rhodopseudomonas , biochemistry , biosynthesis , photosynthetic reaction centre , biology , photosynthetic pigment , photosynthesis , chemistry , gene , organic chemistry
Bacteriochlorophyll‐less mutant cells of Rhodopseudomonas capsulata YS were capable of synthesizing pigment—protein complex polypeptides under conditions permitting the formation of the photosynthetic apparatus in the wild type. Individual polypeptides were identified by immunoprecipitation. Pulse‐chase experiments revealed that the polypeptides did not accumulate in the membranes but underwent rapid degradation. The data suggest that bacteriochlorophyll is needed to stabilize the polypeptides of pigment—protein complexes.