FIELD: medicine.
SUBSTANCE: invention refers to biotechnology and can be used to determine a human genotype by polymorphism in matrix metalloproteinase MMP9-1562 C>T (rs3918242) gene. The method is based on the establishment of a melting profile with fluorescence-labelled specific oligonucleotide samples. The method uses an allele-shared pair of primers, fluorescence-labelled allele-specific oligonucleotide samples different for each allele and a general oligonucleotide labelled with a fluorescence extinguisher of the following nucleotide composition: MMP9-1562s CGAAACCAGCCTGGTCAACG; MMP9-1562a TCTGCCTCCCGGGTTCAAGC; MMP9-1562p1 GGCGCACGCCTATAA-FAM; MMP9-1562p2 GGCGCATGCCTATAA-HEX; MMP9-1562pq BHQ1-ACCAGCTACTCGGGAGGC-3'-(P), wherein FAM means the fluorescence extinguisher FAM, HEX means the fluorescence extinguisher HEX, BHQ1 means the dark fluorescence extinguisher attached to 5'-terminal nucleotide. Referring the sample to a homozygote or a heterozygote by the allele is determined by a DNA melting profile shape that is a maximum of the first fluorescence curve derivative.
EFFECT: invention enables providing more reliable and accessible genotyping.
1 dwg
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Authors
Dates
2015-04-20—Published
2012-12-21—Filed