IHOP complications in pregnancy virology


Circulating human pregnancy-associated plasma protein-A is disulfide-bridged to the proform of eosinophil major basic protein.

Oxvig C, Sand O, Kristensen T, Gleich GJ, Sottrup-Jensen L
Department of Molecular Biology, University of Aarhus, Denmark.

A previously unrecognized association between pregnancy-associated plasma protein-A (PAPP-A) and the proform of eosinophil major basic protein (proMBP) is demonstrated. PAPP-A isolated from pooled pregnancy serum is shown to be a disulfide-bridged complex with proMBP (PAPP-A/proMBP) in which the subunits of the constituents are present in a 1:1 molar ratio. The results are the outcome of analysis of tryptic and CNBr/tryptic peptides from PAPP-A/proMBP, sequence analysis of intact and reduced and carboxymethylated PAPP-A/proMBP, and reaction with monoclonal antibodies directed against MBP [?] and its proform. In addition, it is shown that commercial polyclonal anti-PAPP-A is polyspecific, also reacting with MBP [?].

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ASHWORTH MEDICINE-Professional Medical Assisting, Doctor of Science,Legal Assistant Diploma BSc Criminal Justice
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