Purification and Characterization of a Cl--Activated Aminopeptidase from Bovine Skeletal Muscle
-
- MIGITA Koshiro
- Graduate School of Biosphere Science, Hiroshima University
-
- NISHIMURA Toshihide
- Graduate School of Biosphere Science, Hiroshima University
Bibliographic Information
- Other Title
-
- Purification and Characterization of a Cl〔-〕-Activated Aminopeptidase from Bovine Skeletal Muscle
- Purification and Characterization of a Cl<sup>−</sup>-Activated Aminopeptidase from Bovine Skeletal Muscle
Search this article
Abstract
To elucidate the mechanisms involved in the increase in free amino acids during postmortem storage of meat, a novel aminopeptidase was purified from bovine skeletal muscle by ammonium sulfate fractionation and successive chromatographies such as DEAE-cellulose, Sephacryl S-200, Hydroxyapatite, Phenyl-Sepharose, and Hi-Trap affinity column chromatography. The molecular mass of the enzyme was found to be 58 kDa on SDS–PAGE. This enzyme had optimum pH at around 7.5, and preferably hydrolyzed Ala-β-naphthylamide (-NA) in amino acid-NAs. The activity was strongly inhibited by phenylmethansulfonyl fluoride (PMSF) and bestatin, suggesting that it is to be classified as a serine protease. Moreover, the activity was enhanced by chloride and nitrate ions, which is the most remarkable property of this enzyme. The enzyme appeared to be involved in the increase in free amino acids during postmortem storage of meat.
Journal
-
- Bioscience, Biotechnology, and Biochemistry
-
Bioscience, Biotechnology, and Biochemistry 70 (5), 1110-1117, 2006
Japan Society for Bioscience, Biotechnology, and Agrochemistry
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282681449507200
-
- NII Article ID
- 10018531035
-
- NII Book ID
- AA10824164
-
- COI
- 1:STN:280:DC%2BD283os1yguw%3D%3D
-
- ISSN
- 13476947
- 09168451
-
- NDL BIB ID
- 7925925
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed