Azuki bean (Vigna angularis) protease inhibitors: isolation and amino acid sequences.

Azuki bean (Vigna angularis) protease inhibitors: isolation and amino acid sequences. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Azuki bean (Vigna angularis) protease inhibitors: isolation and amino acid sequences. Abstract Text:

C Ishikawa,K Watanabe,N Sakata,C Nakagaki,S Nakamura,K Takahashi,

Double-headed protease inhibitors I, IIa, and IIc (AB I, AB IIa, and AB IIc) have been purified from azuki beans "Takara" (Vigna angularis) by conventional chromatographic methods and their amino acid sequences have been determined. AB I, AB IIa, and AB IIc had molecular weights of 9,166, 8,661, and 8,756 daltons, consisting of 82, 78, 79 amino acid residues, respectively. The molecular weights of these inhibitors, determined by gel filtration at pH 8.0, were 18,000 for AB I and 17,000 for both AB IIa and AB IIc, indicating that the inhibitors are dimers. The inhibitors had isoelectric points of 4.7 (AB I), 6.8 (AB IIa), and 6.2 (AB IIc). AB I stoichiometrically inhibited both trypsin and chymotrypsin at a molar ratio of 1 : 1. On the other hand, AB IIa and AB IIc both inhibited trypsin at a molar ratio of about 1 : 2 and also inhibited chymotrypsin, though only weakly. Sequence comparison with other double-headed inhibitors indicated the reactive sites of AB IIa and AB IIc for trypsin to be Lys26-Ser27 and Arg53-Ser54, and those of AB I for trypsin and chymotrypsin to be Lys26-Ser27 and Tyr53-Ser54, respectively. The differences between AB IIa and AB IIc were that AB IIa lacked the C-terminal aspartic acid residue, and that Glu10 and Arg60 in AB IIa were replaced by Gln10 and His60 in AB IIc. A comparison between AB IIa and AB I revealed 25 variant amino acids among the 78 residues of AB IIa; further, Ab IIa lacked 4 amino acid residues in the C-terminal region of AB I.

Azuki bean (Vigna angularis) protease inhibitors: isolation and amino acid sequences. Publishing Authors By Initials

C Ishikawa,K Watanabe,N Sakata,C Nakagaki,S Nakamura,K Takahashi,

For similar chemical actions and uses: pharmacologic actions: molecular mechanisms of pharmacological action: enzyme inhibitors: protease inhibitors: serine proteinase inhibitors: trypsin inhibitors research abstracts see: chemical actions and uses: pharmacologic actions: molecular mechanisms of pharmacological action: enzyme inhibitors: protease inhibitors: serine proteinase inhibitors: trypsin inhibitors research

PUBMED ID PMID:

MEDLINE DATE:

Azuki bean (Vigna angularis) protease inhibitors: isolation and amino acid sequences. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of biochemistry

VOLUME: 97

Page Numbers: 55-70

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Jan

YEAR: 1985

Azuki bean (Vigna angularis) protease inhibitors: isolation and amino acid sequences. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 376600

Azuki bean (Vigna angularis) protease inhibitors: isolation and amino acid sequences. Keywords Mesh Terms:

KEYWORDS: Trypsin Inhibitors

MESH TERMS: isolation & purification

Chemical & Substance for Abstract: Azuki bean (Vigna angularis) protease inhibitors: isolation and amino acid sequences. Information

Substance Name: auR protein, Staphylococcus aureus

Registry Number: EC 3.4.24.29

Grant and Affiliation Information for Azuki bean (Vigna angularis) protease inhibitors: isolation and amino acid sequences.

AFFILIATION:

Country: JAPAN

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Biochem

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Azuki bean Vigna angularis protease inhibitors: isolation and amino acid sequences Related Publications

• A noncanonical E-box enhancer drives mouse Period2 circadian oscillations in vivo.
• Bone morphogenetic protein 2 stimulates osteoclast differentiation and survival supported by receptor activator of nuclear factor-kappaB ligand.
• Circadian rhythms: the cancer connection.
• Comparison between stabilometry with and without head tilts in a roll plane.
• Effect of Escherichia coli wild type or its derivative with high nitrite reductase activity on in vitro ruminal methanogenesis and nitrate/nitrite reduction.
• Effect of gravity on apical dominance in Pharbitis nil.
• Effect of oral branched chain amino acid-rich nutrient administered during endoscopic injection sclerotherapy of cirrhotic patients.
• Forward genetic screens to identify circadian rhythm mutants in mice.
• Genome-wide epistatic interaction analysis reveals complex genetic determinants of circadian behavior in mice.
• Identification of the cDNA of differentially expressed genes in the transition zone of cucumber seedlings by fluorescent differential display.
• In vivo bone-forming capacity of human bone marrow-derived stromal cells is stimulated by recombinant human bone morphogenetic protein-2.
• Isolation of auxin efflux carrier cDNA from cucumber.
• Methods to record circadian rhythm wheel running activity in mice.
• Mice lacking smooth muscle calponin display increased bone formation that is associated with enhancement of bone morphogenetic protein responses.
• Mouse chimeras and their application to circadian biology.
• Novel hydrotropism mutants of Arabidopsis thaliana and their altered waving response and phototropism.
• Oral myiasis treated with ivermectin: case report.
• Osteoblasts provide a suitable microenvironment for the action of receptor activator of nuclear factor-kappaB ligand.
• Osteoprotegerin regulates bone formation through a coupling mechanism with bone resorption.
• Pax 2 expression in mesodermal segmentation and its relationship with EphA4 and Lunatic-fringe during chicken somitogenesis.
• Physiological and genetic characterization of hydrotropic mutants of Arabidopsis thaliana.
• Real-time luminescence reporting of circadian gene expression in mammals.
• Regulations: what next?
• The effect of light on the gravimorphogenesis of cucumber seedlings.
• The mouse Clock mutation reduces circadian pacemaker amplitude and enhances efficacy of resetting stimuli and phase-response curve amplitude.
• [Bone morphogenetic protein (BMP): from basic studies to clinical approaches]
• [Differential expression of a homing-related molecule repertoire among umbilical cord blood, mobilized peripheral blood and bone marrow-derived hematopoietic stem/progenitor cells.]
• [Gravitaxis of paramecium: testing the hypotheses by free-fall experiments]
• [Sequence variability in Borna disease virus ORF II from human beings]
• [The effects of space environment on differentiation and mutation frequency in Dictyostelium discoideum]