PMID:2011493

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Citation

Chauhan, AK, Miczak, A, Taraseviciene, L and Apirion, D (1991) Sequencing and expression of the rne gene of Escherichia coli. Nucleic Acids Res. 19:125-9

Abstract

RNase E is a major endonucleolytic RNA processing enzyme in Escherichia coli. We have sequenced a 3.2 kb EcoRI-BamHI fragment encoding the rne gene, and identified its reading frame. Upstream from the gene, there are appropriate consensus sequences for a putative promoter and a ribosome binding site. We have translated this gene using a T7 RNA polymerase/promoter system. We determined 25 amino acids from the N-terminal of the translated product and they are in full agreement with the DNA sequence. The translated product of the rne gene migrates in SDS containing polyacrylamide gels as a 110,000 Da polypeptide, but the open reading frame found in the sequenced DNA indicates a much smaller protein. The entity that migrates as a 110,000 Da contains RNA, which could account, at least partially, for the migration of the rne gene product in SDS containing polyacrylamide gels.

Links

PubMed PMC333542

Keywords

Amino Acid Sequence; Base Sequence; Consensus Sequence; DNA, Bacterial; Electrophoresis, Polyacrylamide Gel; Endoribonucleases/genetics; Endoribonucleases/metabolism; Escherichia coli/enzymology; Escherichia coli/genetics; Gene Expression; Genes, Bacterial; Molecular Sequence Data; Open Reading Frames; Protein Biosynthesis

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