FIELD: medicine.
SUBSTANCE: strain A-4A7 is prepared by fusion of mouse myeloma cells of line SP2/0.Agl4 with mouse lymphocytes of line Balb/c immunised by introduction in pads of a purified preparation AMGF (alpha2-microglobulin of fertility) separated from amniotic fluid, and deposited in the transplantable mammal cell culture collection of the Research Institute of Human morphology of the Russian Academy of Medical Science numbered 131/2002. Strain A-4A7 synthesises monoclonal antibodies (MCA) of IgGI class specifically reacting in solid-phase immune-enzyme analysis (IEA) with AMGF isoforms of endometrial, follicular and sperm nature. Activity of the strain: cultural supernatant contains MCA 3-5 mkg/ml, while ascetic fluid contains MCA 2-5 mg/ml. The antibody titre in cultural fluid is 1:500-1:1000, in ascetic fluid up to 1:1×107. A-4A7 bonds various AMGF protein glycoforms produced in male and female reproductive organs. Application of MCA A-4A7 as an immunodiagnosis test systems allows for high-specific and high-sensitive (1 ng/ml) quantitative analysis of various AMGF/glykodeline isoforms in biological liquids.
EFFECT: new compounds are characterised with valuable biological properties.
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