Boehringer Mannheim Gmbh

Peter Wunderwald

Jurgen Schrenk

Helmut Lill

Joachim Ziegenhorn

Otto-Henning Wilhelms

Klaus Beaucamp

Knut Bartl

Peter Stahl

Hans Port

The present invention provides a process for the detection of the presence of an allergy and for the specific detection of the allergen responsible for the allergy, based on the cellular principle, wherein leukocytes of a sample to be investigated are incubated with an allergen or another stimulation factor of degranulation, such as anti-IgE, in an aqueous medium, the leukocytes are then separated off and the remaining solution is incubated with a compound of the general formula:

Process for the detection of the presence of an allergy and for the

Process for the determination of antithrombin-BM

The present invention provides endoproteinase-Lys-C from bacteria, consisting of a chain of molecular weight 35000 to 38000 Dalton, having a pH optimum at pH 7.7 and being inhibited by aprotinin but not being inhibited by alpha.sub.2 -macroglobulin, .alpha..sub.1 -antitrypsin and ethylenediamine-tetraacetic acid. The present invention also provides a process for obtaining this enzyme, wherein a culture broth of an appropriate bacterial strain which has been filtered or pre-purified by usual methods is chromatographed over carrier-fixed alpha.sub.2 -macroglobulin-metal complex and the enzyme is obtained from the filtrate.

Endoproteinase-Lys-C and process for its preparation thereof

The present invention provides a process for the selective separation of endoproteases from aqueous solutions, wherein an aqueous solution containing proteases is treated with a complex, present in the solid phase, of alpha.sub.2 -macroglobulin with a divalent metal selected from zinc, cobalt, nickel and copper and the solid phase then separated off. The present invention also provides an agent for carrying out this process, wherein it comprises a solid carrier material which is loaded with a complex of alpha.sub.2 -macroglobulin and of a divalent metal selected from zinc, cobalt, nickel and copper.

Process for the selective separation of endoproteases

Thrombin inhibitor comprising a glycoprotein of a molecular weight of 68,000 to 69,000 Dalton and an isoelectric point of pH 4.5, and is further characterized in that it inhibits thrombin in the presence of dextran sulfate at least twice as strongly as in the presence of heparin, differs immunologically from antithrombin III, and does not inhibit factor Xa, plasmin and trypsin.

Thrombin inhibitor and preparation and use thereof

A control reagent for heparin activity determination comprising

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Haunshofen, Germany

Peter Wunderwald