摘要:
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.
摘要:
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.
摘要:
The invention relates to a polypeptide which can be isolated from thymus glands and has an action on the immunological system, and which has a molecular weight of 3,480, a UV absorption with a maximum at 205 to 210 nm and an isoelectric point of 3.95+0.15 and a specific aminoacid composition, the N-terminal, if appropriate, carrying an acyl group or an acylglycyl group, processes for its isolation and purification, its use, agents containing this polypeptide, and its cleavage products, their use and agents containing them.
摘要:
Hirudin derivatives can be prepared by the selective enzymic replacement of a part of the molecule with an amino derivative. The hirudin derivatives are suitable for preparing pharmaceuticals having an anticoagulatory effect.
摘要:
The present invention relates to hirudin derivatives which are formed from hirudin or the physiologically acceptable salt thereof and a carrier, to a process for the preparation thereof, and to the use thereof as thrombin inhibitor.
摘要:
A new transaminase has been isolated from E. coli DH-1 (ATCC 33849). It is possible to use the transaminase with great efficiency to prepare L-phosphinothricin and gamma-aminobutyric acid from appropriate precursors by transferring an amino group from glutamate.
摘要:
The invention relates to a polypeptide of the formula ##STR1## in which R represents phenoloic hydrogen or a phenolic ester group and m, n, X, Z, A, B, C, D, E, F, G, I and J have the meanings given, and in which the 6 Cys radicals are linked in pairs via disulfide bridges, processes for the preparation or isolation thereof, their use and agents containing them.
摘要:
A process for the preparation of a purified transaminase having a molecular weight of 20,000 to 250,000 daltons, an isoelectric point at a pH between 3.0 and 8.0, a pH optimum in a range from 5.0 to 10.0 and a substrate specificity for the transamination of (3-carboxy-3-oxo-propyl)-methyl-phosphinic acid or the esters thereof.The production of the enzyme comprises cultivating E. coli ATCC 33849, disrupting the cultivated E. coli ATCC 33849, obtaining a supernatant therefrom containing the enzyme and isolating the transaminase by heating the supernatant at a temperature and for a time sufficient to denature proteins other than the transaminase and than finally removing the denatured proteins from the supernatant.
摘要:
The invention relates to a process for the isolation and purification of hirudin from complex and salt-containing solutions by hydrophobic chromatography, using as stationary phase porous adsorber resins and as mobile phase organic solvents which are miscible with water.
摘要:
Cyclic polypeptides of the formula I ##STR1## in which Z, S, Y and AS have the meanings given, a process for their preparation and their use are described. The compounds have an .alpha.-amylase-inhibiting action.