Anticoagulant hirudin variants and methods for their production

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United States of America Patent

PATENT NO 5767235
SERIAL NO

08367758

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Abstract

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The present invention relates to hirudin variants having high anti-thrombin and anti-platelet activity, methods for producing them, and anti-coagulants having said variants as active ingredients. Hirudin variants shown in formula (I) having tyrosine residues or having their hydroxyl group sulfated. Methods for producing hirudin variants by sulfating hydroxyl group of said tyrosine residues, and anti-coagulants having hirudin variants shown in formula (I) as active ingredients. Phe-Glu-A-Ile-Pro-B-Tyr(R)-Tyr(R) (I) ?In the formula, A represents Glu or Pro, B represents Glu, Tyr (R), Glu-Asp or Glu-Tyr(R), and (R) represents the hydroxy group or its sulfated ester (--O--SO.sub.3 H) of tyrosine residue.!

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Patent Owner(s)

Patent OwnerAddress
NIPPON MINING COMPANY LIMITEDTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobashi, Kyoichi Toyama, JP 6 35
Misawa, Satoru Toda, JP 6 10
Morikawa, Tadanori Takaoka, JP 7 22
Muramatsu, Ryo Toda, JP 11 90
Nakano, Masaharu Takaoka, JP 8 18
Nukui, Eriko Takaoka, JP 3 3
Sukesada, Akiko Toda, JP 3 4
Wada, Koichi Takaoka, JP 56 712

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