申请人:COUNCIL OF GOVERNORS OF THE UNITED
MEDICAL AND DENTAL SCHOOLS OF GUY'S AND
ST. THOMAS'S HOSPITALS
公开号:EP0116472A2
公开(公告)日:1984-08-22
An antigenic material having a molecular weight of 3800-4500, and useful in the preparation of an anticaries vaccine is produced from a known antigenic material, antigen I/II of molecular weight 185,000 daltons obtained from the culture supernatant of Streptococcus mutans. The smaller molecular weight fraction of the invention contains the same antigenic determinants as the known 185,000 dalton material but the lower molecular weight material can be used with less side effects. The antigenic material can be used for the production of vaccine preparations that could be administered parentally or by topical application to the gums.
A replicable plasmidic expression vector, capable of high levels of expression and secretion of polypeptides in a bacillus is disclosed. The vector contains a DNA sequence comprising the promoter and regulatory regions which control expression and secretion of proteases in a bacillus operably liked to a DNA sequence encoding the amino acid sequence of a polypeptide. The expression vector is particularly useful in the production of B. amyloliquefaciens proteases in B. subtilis. The method facilitates the isolation of proteases from various bacilli.
本发明公开了一种可复制的质粒表达载体,它能够在芽孢杆菌中高水平地表达和分泌多肽。该载体包含一个 DNA 序列,该 DNA 序列包含启动子和调控区,这些启动子和调控区可控制芽孢杆菌中蛋白酶的表达和分泌,并与编码多肽氨基酸序列的 DNA 序列可操作地结合在一起。该表达载体特别适用于在枯草杆菌中生产淀粉样芽孢杆菌蛋白酶。该方法有助于从各种杆菌中分离蛋白酶。
Influence of superstrong electronaccepting substituent CF3S(O)NSO2CF3 on nucleophilic substitution reactions in aromatic ring
作者:V. Boiko、N. Kirii、L. Yagupolskii
DOI:10.1016/s0022-1139(00)83887-7
日期:1991.9
Baculovirus proteins and viral pesticides containing same
申请人:BOYCE THOMPSON INSTITUTE FOR
PLANT RESEARCH
公开号:EP0336341B1
公开(公告)日:1994-06-22
BIOMARKERS FOR HEAD-AND-NECK CANCERS AND PRECANCERS