Primary structure of hemorrhagic protein, HR2a, isolated from the venom of Trimeresurus flavoviridis.

Primary structure of hemorrhagic protein, HR2a, isolated from the venom of Trimeresurus flavoviridis. Research Abstract Details 

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Primary structure of hemorrhagic protein, HR2a, isolated from the venom of Trimeresurus flavoviridis. Abstract Text:

T Miyata,H Takeya,Y Ozeki,M Arakawa,F Tokunaga,S Iwanaga,T Omori-Satoh,

The complete amino acid sequence and disulfide bridge location of HR2a, one of the hemorrhagic proteins isolated from the snake venom of Trimeresurus flavoviridis, have been determined by analysis of peptides derived from digests with cyanogen bromide, lysyl endopeptidase, trypsin, and Staphylococcus aureus V8 protease. Peptides were purified by gel filtration followed by reversed-phase HPLC. HR2a has the amino-terminal sequence of less than Glu-Gln-Arg- and consists of a total of 202 residues with a calculated molecular weight of 23,015. Sequence analysis indicates the presence of another isoform which lacks the amino-terminal residue, making 201 amino acid residues with a molecular weight of 22,887. Three disulfide bridges of HR2a link Cys-118 to Cys-197, Cys-159 to Cys-181, and Cys-161 to Cys-164. HR2a contains a segment which is similar to the zinc-chelating sequences found in thermolysin and several mammalian metalloproteinases, suggesting that HR2a is a metalloproteinase with limited substrate specificity. However, there is no other significant sequence homology with thermolysin except for the zinc-ligand region.

Primary structure of hemorrhagic protein, HR2a, isolated from the venom of Trimeresurus flavoviridis. Publishing Authors By Initials

T Miyata,H Takeya,Y Ozeki,M Arakawa,F Tokunaga,S Iwanaga,T Omori-Satoh,

For similar enzymes and coenzymes: enzymes: hydrolases: peptide hydrolases: endopeptidases: serine endopeptidases: trypsin research abstracts see: enzymes and coenzymes: enzymes: hydrolases: peptide hydrolases: endopeptidases: serine endopeptidases: trypsin research

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Primary structure of hemorrhagic protein, HR2a, isolated from the venom of Trimeresurus flavoviridis. Journal Published:

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

Journal: Journal of biochemistry

VOLUME: 105

Page Numbers: 847-53

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: May

YEAR: 1989

Primary structure of hemorrhagic protein, HR2a, isolated from the venom of Trimeresurus flavoviridis. Information

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LANGUAGE: eng

NlmUniqueID: 376600

Primary structure of hemorrhagic protein, HR2a, isolated from the venom of Trimeresurus flavoviridis. Keywords Mesh Terms:

KEYWORDS: Trypsin

MESH TERMS: analysis

Chemical & Substance for Abstract: Primary structure of hemorrhagic protein, HR2a, isolated from the venom of Trimeresurus flavoviridis. Information

Substance Name: lysyl endopeptidase

Registry Number: EC 3.4.21.50

Grant and Affiliation Information for Primary structure of hemorrhagic protein, HR2a, isolated from the venom of Trimeresurus flavoviridis.

AFFILIATION: Department of Biology, Faculty of Science, Kyushu University, Fukuoka.

Country: JAPAN

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MEDLINETA: J Biochem

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