Kinetic comparisons of amniotic fluid inactive renin and renal renin using synthetic and human renin substrates
dc.contributor.author | Franks, Robert C. | en_US |
dc.contributor.author | Bodola, Francis | en_US |
dc.contributor.author | Renthal, Robert D. | en_US |
dc.contributor.author | Hayashi, Robert H. | en_US |
dc.date.accessioned | 2006-04-07T19:23:05Z | |
dc.date.available | 2006-04-07T19:23:05Z | |
dc.date.issued | 1986-12 | en_US |
dc.identifier.citation | Franks, Robert C., Bodola, Francis, Renthal, Robert D., Hayashi, Robert H. (1986/12)."Kinetic comparisons of amniotic fluid inactive renin and renal renin using synthetic and human renin substrates." Biochemical Medicine and Metabolic Biology 36(3): 333-339. <http://hdl.handle.net/2027.42/25955> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6WBN-4C4NVDB-57/2/b8aaffc17f09e2ecc0c8f7560492e1df | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/25955 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=3541982&dopt=citation | en_US |
dc.description.abstract | Inactive renin has been isolated from pooled amniotic fluid and purified ~642-fold. Prior to activation the isolates has ~4% of the activity found after activation. The observation is similar to that reported for inactive renin from chorionic cell culture and suggests a placental origin of amniotic fluid inactive renin.Using plasma from an estrogen-treated woman, renin substrate was recovered free of renin and inactive renin and a portion was separated into NMW and HMW components. The NMW form constituted ~93% and the HMW form ~7% of the renin substrate.Amniotic fluid inactive renin was used for determinations of enzyme-substrate kinetics with the pooled, NMW, and HMW plasma substrate and tetradecapeptide synthetic substrate, and the results were compared to similar determinations using standard renal renin. Using synthetic substrate, the kinetics of renal renin and amniotic fluid inactive renin before and after activation were similar. The kinetics of renal renin with pooled, NMW, and HMW plasma substrate were also similar.Amniotic fluid inactive renin had a lower Km with pooled than with NMW substrate, however, which resulted from a significantly smaller Km with HMW component. Although the affinity constants with pooled substrate were not different for renin and inactive renin, the Km of inactive renin was significantly less with the HMW component of plasma renin substrate.The observation are compatible with a role for placental inactive renin in normal pregnancy and suggest the possibility of a further role in hypertensive pregnancy. | en_US |
dc.format.extent | 480768 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | Kinetic comparisons of amniotic fluid inactive renin and renal renin using synthetic and human renin substrates | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Public Health | en_US |
dc.subject.hlbsecondlevel | Chemistry | en_US |
dc.subject.hlbsecondlevel | Chemical Engineering | en_US |
dc.subject.hlbsecondlevel | Biological Chemistry | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Obstetrics and Gynecology, University of Michigan Medical School, Ann Arbor, Michigan 48109, USA | en_US |
dc.contributor.affiliationother | Department of Pediatrics, University of Texas Health Science Center, San Antonio, Texas 78284-7806, USA | en_US |
dc.contributor.affiliationother | Department of Pediatrics, University of Texas Health Science Center, San Antonio, Texas 78284-7806, USA | en_US |
dc.contributor.affiliationother | Department of Biochemistry, University of Texas Health Science Center, San Antonio, Texas 78284-7806, USA | en_US |
dc.identifier.pmid | 3541982 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/25955/1/0000021.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0885-4505(86)90144-1 | en_US |
dc.identifier.source | Biochemical Medicine and Metabolic Biology | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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