Synthetic isohirudins with improved stability

Chemistry: molecular biology and microbiology – Vector – per se

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435 691, 4351723, 4352523, 43525233, 43525421, 536 235, 935 9, 935 10, 935 28, 935 29, 935 56, 935 69, 935 73, C12N 1512, C12N 1563, C12N 1520, C12N 1581

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active

053169476

ABSTRACT:
Novel synthetic isohirudins with improved stability The invention relates to novel synthetic isohirudins which have improved stability owing to exchange in the region of the Asp-Gly motif. This results, on the one hand, in an increase in the yield during workup and, on the other hand, in making possible pharmaceutical formulation as directly injectable solution ready for use.

REFERENCES:
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patent: 5095092 (1992-03-01), Badziong et al.
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Stephenson et al., "Succinimide Formation from Aspartyl and Asparaginyl Peptides as a Model for the Spontaneous Degradation of Proteins," The Journal of Biological Chemistry, vol. 264, No. 11, 1989, pp. 6164-6170.
Harvey et al., "Cloning & Expression of a cDNA Coding for the Anti-Coagulant Hirudin from the Blood Sucking Leech, Hirudo Medicinalis," PNAS 83: 1084-1088 (1986).
Baskova et al., "Hirudin from Leech Heads and Whole Leeches and `Pseudo-Hirudin` from Leech Bodies," Thrombosis Research 30: 459-467 (1983).
Bowie et al., "Deciphering the Message in Protein Sequences: Tolerance to Amino Acid Substitutions," Science 247: 1306-1310 (1990).
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Dodt et al., "Interaction of Site Specific Hirudin Variants with .delta.-thrombin," FEBS Letters, vol. 229 (1): 87-90 (1988).
Dodt et al., "The Complete Amino Acid Sequence of Hirudin, a Thrombin Specific Inhibitor. Application of Colour Carboxymethylations", FEBS Letters, vol. 164 (2): 180-184 (1984).

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