Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Recombinant dna technique included in method of making a...
Patent
1997-05-22
1999-10-26
Feisee, Lila
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Recombinant dna technique included in method of making a...
536 231, 4353201, 435325, 4352523, 4351723, 530324, 514 2, C07H 2104, C12N 1512, C12N 1563, C07K 1400
Patent
active
059726482
ABSTRACT:
Disclosed are hirudin analogs, a method of manufacture thereof, and anticoagulant compositions containing the same. Sequences Asp.sup.33 -Gly.sup.34 or Asp.sup.62 -Ala.sup.63 of naturally-occurring hirudins or their analogs were substituted as disclosed to suppress the formation of succinimide- or beta- forms, thereby yielding hirudin analogs with high stability, high anti-thrombin activity, and therapeutic potential as anticoagulants. Hirudin analogs having Val.sup.1 -Val.sup.2 of naturally-occurring hirudin substituted with Ile.sup.1 -Ile.sup.2 are preferred for their high antithrombiin activity. The invention also provides DNAs encoding the amino acid sequence of hirudin analogs, expression vectors, recombinant microogranisms, and a method of manufacturing hirudin analogs using recombinant microorganisms.
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Matsuda Hitoshi
Misawa Satoru
Sukesada Akiko
Basi Nirmal S.
Feisee Lila
Japan Energy Corporation
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