RRC ID 33464
著者 Deng TL, Noel JP, Tsai MD.
タイトル A novel expression vector for high-level synthesis and secretion of foreign proteins in Escherichia coli: overproduction of bovine pancreatic phospholipase A2.
ジャーナル Gene
Abstract A novel expression plasmid (pTO-N) has been constructed that allows for the production of large quantities of foreign proteins (or fragments thereof) in an unfused state. The vector has a strong and tightly regulated T7 gene 10 promoter and the ompA Shine-Dalgarno (SD) sequence, followed by the ompA sequence and a cloning linker region. The mRNAs produced by the vector are protected by secondary structures at both ends of the mRNAs. The OmpA signal peptide directed the synthesized proteins into the periplasmic space of Escherichia coli. Phospholipase A2 and prophospholipase A2 from bovine pancreas have been produced to a high level by using this expression vector. One additional feature, which is essential for the stable maintenance of the plasmid in the E. coli expression host, BL21 (DE3)[pLysS], is the shortened distance between the 5' secondary structure sequence (immediately following the gene 10 promoter) and the SD sequence. This vector could be particularly useful for synthesis of toxins in E. coli.
巻・号 93(2)
ページ 229-34
公開日 1990-9-14
DOI 10.1016/0378-1119(90)90229-k
PII 0378-1119(90)90229-K
PMID 2227436
MeSH Amino Acid Sequence Animals Base Sequence Cattle Cloning, Molecular Escherichia coli / genetics* Gene Expression Molecular Sequence Data Nucleic Acid Conformation Pancreas* / enzymology* Phospholipases A / biosynthesis Phospholipases A / genetics* Phospholipases A2 Plasmids Promoter Regions, Genetic RNA, Messenger / chemistry Swine
IF 2.984
引用数 57
WOS 分野 GENETICS & HEREDITY
リソース情報
原核生物(大腸菌) pTM-N pTO