A HEPTAPEPTIDE REPEAT CONTRIBUTES TO THE UNUSUAL LENGTH OF CHLOROPLAST RIBOSOMAL PROTEIN-S18 - NUCLEOTIDE-SEQUENCE AND MAP POSITION OF THE RPL33-RPS18 GENE-CLUSTER IN MAIZE

作者：WEGLOHNER W; SUBRAMANIAN AR

来源：FEBS Letters, 1991, 279(2): 193-197.

DOI：10.1016/0014-5793(91)80147-U

• CHLOROPLAST GENOME
• RIBOSOMAL PROTEIN
• RPS18-RPL33
• RNA BINDING MOTIF
• ZEA-MAYS

The rpl33-rps18 gene cluster of the maize chloroplast genome has been mapped and sequenced. The derived amino acid sequence of the S18 protein shows a 7-fold repeat of a hydrophilic heptapeptide domain, S K Q P F R K, in the N-terminal region. Such a sequence is absent in the E. coli S18 and in the chloroplast S18 of the lower plant liverwort. In tobacco and rice chloroplast S18 it is present 2 and 6 times, respectively. Thus a long N-terminal repeat (resembling in composition the large C-terminal heptapeptide repeat in the eukaryotic pol II) appears to be characteristic of monocot cereal S18.

• 出版日期1991-2-25