Purification and characterization of renin binding protein (RnBP) from porcine kidney.

Purification and characterization of renin binding protein (RnBP) from porcine kidney. Research Abstract Details 

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Purification and characterization of renin binding protein (RnBP) from porcine kidney. Abstract Text:

S Takahashi,T Ohsawa,R Miura,Y Miyake,

Renin binding protein (RnBP) was purified from porcine kidney using pepstatin affinity column chromatography, DEAE-Sepharose column chromatography, gel filtration on Ultrogel-AcA 34, aminohexyl-Sepharose 4B column chromatography, and high performance liquid chromatography (HPLC) on TSK-gel G-3000 SW. The purified preparation was homogeneous as judged by sodium dodecyl sulfate (SDS)-polyacrylamide gel electrophoresis, polyacrylamide disc gel electrophoresis and isoelectric focusing on polyacrylamide gel. The isoelectric point was at pH 4.85, and the apparent molecular weight of RnBP was estimated to be 42,000 by SDS-polyacrylamide gel electrophoresis. The preparation did not show any renin activity and was stable for 30 min at 37 degrees C between pH 5.0 and 9.0 or on storage for 4 weeks at 4 degrees C or -80 degrees C. The activity of renin was greatly inhibited by RnBP. From the kinetic analysis of the inhibition we roughly estimated the dissociation constant between renin and RnBP to be about 0.2 nM, assuming that the stoichiometry in the complex, i.e., high molecular weight (HMW) renin, is one to one, and that the complex is inactive. The inhibitory activity of RnBP was lost by acidification at pH 3.0 and the activity of renin was restored. The purified RnBP formed a single precipitin line with the antiserum prepared with the purified HMW renin as antigen, which is RnBP-renin complex (Takahashi, S., et al. (1983) J. Biochem. 93, 265-274), and this line fused with one of the two precipitin lines formed between HMW renin and anti-HMW renin antiserum. The other of the two lines was between renin and anti-HMW renin antiserum. The purified preparation was thus identified as RnBP. The HMW renin was reconstituted with the purified RnBP and renin, and the apparent molecular weight of the reconstituted specimen was estimated to be 60,000 by gel filtration on Ultrogel AcA 44.

Purification and characterization of renin binding protein (RnBP) from porcine kidney. Publishing Authors By Initials

S Takahashi,T Ohsawa,R Miura,Y Miyake,

For similar animals: chordata: vertebrates: mammals: artiodactyla: swine research abstracts see: animals: chordata: vertebrates: mammals: artiodactyla: swine research

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Purification and characterization of renin binding protein (RnBP) from porcine kidney. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of biochemistry

VOLUME: 93

Page Numbers: 1583-94

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Jun

YEAR: 1983

Purification and characterization of renin binding protein (RnBP) from porcine kidney. Information

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LANGUAGE: eng

NlmUniqueID: 376600

Purification and characterization of renin binding protein (RnBP) from porcine kidney. Keywords Mesh Terms:

KEYWORDS: Swine

MESH TERMS: analysis

Chemical & Substance for Abstract: Purification and characterization of renin binding protein (RnBP) from porcine kidney. Information

Substance Name: N-acyl-D-glucosamine 2-epimerase

Registry Number: EC 5.1.3.8

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Country: JAPAN

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MEDLINETA: J Biochem

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