Author/Editor		Meissner, Markus; Stark, Klaus; Črešnar, Bronja; Kirk, David L.; Schmitt, Ruediger
Title		Volvox germline-specific genes that are putative targets of RegA repression encode chloroplast proteins
Type		članek
Source		Curr Genet
Vol. and No.		Letnik 36, št. 6
Publication year		1999
Volume		str. 363-70
Language		eng
Abstract		In Volvox carteri, regA acts as a master gene to suppress all germ cell functions in somatic cells. Its product, RegA, has features of a transcriptional repressor. Here we report cDNA sequences representing I S nuclear genes with properties expected of RegA targets: they are expressed strongly in germ cells and in regA-, but not regA+, somatic cells. Two of them encode polypeptides with no recognizable features, but ten (like three previously sequenced ones) encode chloroplast proteins of known function, and the remaining three encode putative chloroplast proteins of unknown function. This suggests that RegA blocks reproductive development in somatic cells by preventing chloroplast biogenesis, thereby making it impossible for the cells to grow enough to reproduce.
Descriptors		ALGAE, GREEN CHLOROPLASTS GENE EXPRESSION REGULATION, PLANT AMINO ACID SEQUENCE DNA, COMPLEMENTARY CLONING, MOLECULAR GERM CELLS PHOTOSYNTHETIC REACTION CENTER, PLANT REGULATORY SEQUENCES, NUCLEIC ACID TRANSLATION, GENETIC IRON-SULFUR PROTEINS MOLECULAR SEQUENCE DATA OPEN READING FRAMES PHOSPHOGLYCERATE KINASE