Failure of Smooth Musle Cells Treated with Collagenase to Respond to Bordetella Heat-Labile Toxin.
نویسندگان
چکیده
منابع مشابه
Purification and characterization of the heat-labile toxin of Bordetella pertussis.
A procedure is described for purification of pertussis heat-labile toxin (PEHLT) from cells of Bordetella pertussis. The purification procedure, performed in the cold and in the presence of protease inhibitors, gives 1,350-fold purification with yields of about 60%. The toxin was shown to be a single-chain polypeptide of 140 kDa, pI 6.02. It was completely inactivated by heating at 56 degrees C...
متن کاملRegulation of pertussis toxin and lipopolysaccharide levels of Bordetella pertussis 134 in response to modulators
Whooping cough (pertussis) is a highly contagious disease of the human respiratory tract, which is caused by Bordetella pertussis. Reemerge of pertussis in some highly immunized populations and divergency in gene order among several B. pertussis strains promoted this research to study the change of pertussis toxin (PT) and lipopolysacharide levels in response to the different environments. Th...
متن کاملCistrons encoding Escherichia coli heat-labile toxin.
The structure and products of the two cistrons encoding the Escherichia coli heat-labile toxin (LT) were studied. The LT deoxyribonucleic acid (DNA) region had been isolated as part of a DNA fragment from the plasmid P307, and this fragment was joined to the cloning vector pBR313. Deletion mutations of various lengths were introduced into the LT DNA region and into the adjacent DNA sequences. A...
متن کاملEvaluation of 116 patients treated with botulimum toxin referred to private dermatologic clinics in Tehran
Background and aim: Appearance concerns are increasingly common. Indeed, clinical surveys in the private settings show that more and more people are dissatisfied with some aspects of their physical appearance. Concurrently, there is increasing demand for cosmetic specialists to perform procedures to enhance physical appearance. It is hypothetized that body image and acceptance of cosmetic surge...
متن کاملHeat Labile Opsonins to Pneumococcus
Heat labile opsonins (HLO) in normal rat serum to both encapsulated and unencapsulated pneumococci (a) have the same heat lability as complement (C); (b) are active at 37 degrees C but not at 0 degrees C; (c) are inactivated proportionately to hemolytic C by the addition of immune aggregates to the serum; (d) are adsorbed from serum nonspecifically by bacteria at 37 degrees C but not at 0 degre...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biological and Pharmaceutical Bulletin
سال: 1996
ISSN: 0918-6158,1347-5215
DOI: 10.1248/bpb.19.1508