Accession Number : AD0758995

Title :   Purification of the Angiotensin I Converting Enzyme of the Lung.

Descriptive Note : Technical rept.,

Corporate Author : OKLAHOMA UNIV HEALTH SCIENCES CENTER OKLAHOMA CITY

Personal Author(s) : Nakajima,T. ; Oshima,G. ; Yeh,H. S. J. ; Igic,R. ; Erdoes,E. G.

Report Date : 17 APR 1973

Pagination or Media Count : 21

Abstract : The angiotensin I converting enzyme (peptidyl dipeptide hydrolase) was purified from hog lung. The molecular weight of the enzyme in SDS polyacrylamide gel electrophoresis was established as 206,000. The pI in isoelectrofocusing was found to be 4.3. The purified enzyme cleaved Bz-Gly-Gly-Gly and bradykinin. It was inhibited by a high concentration of urea and by the nonapeptide SQ 20881. Both compounds inhibited reversibly as shown in studies done with the water-insoluble Sepharose-converting enzyme complex. After gel filtration on a Sephadex G-200 column two additional forms of converting enzyme were detected. (Author)

Descriptors :   (*ENZYMES, PURIFICATION), (*HYDROLASES, PURIFICATION), CHROMATOGRAPHIC ANALYSIS, MOLECULAR WEIGHT

Subject Categories : Biochemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE