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Bioluminescent reporters for identification of gene allelic variants / V. V. Krasitskaya [et al.] // Russ. J. Bioorg. Chem. - 2012. - Vol. 38, Is. 3. - P298-305, DOI 10.1134/S1068162012030090. - Cited References: 13. - The authors thank the staff of Hematology Research Center (Krasnoyarsk Branch of Russian Academy of Medical Sciences) for providing DNA samples. The work was supported by the Integration Interdisciplinary Project of Siberian Branch of the Russian Academy of Sciences No. 76 and the Krasno yarsk Regional Fund for the support of scientific and technological activities. . - ISSN 1068-1620

РУБ Biochemistry & Molecular Biology + Chemistry, Organic
Рубрики:
COELENTERAZINE-BINDING PROTEIN
   RENILLA-MUELLERI
   LUCIFERASE
   PURIFICATION
   SUBSTRATE
   CLONING
   CDNA
Кл.слова (ненормированные):
SNP -- PEXT reaction -- obelin -- luciferase -- bioluminescent microassay
Аннотация: A method for single nucleotide polymorphism identification was developed, which was based on the primer extension reaction (PEXT) followed by bioluminescent solid-phase microassay. Recombinant Ca2+-regulated photoprotein obelin and coelenterazine-dependent Renilla muelleri luciferase were used as reporters. The study was performed as an example of SNP genotyping of the human F5 gene encoding human Factor V Leiden polymorphism 1691 G -> A (R506Q). Genomic DNA was amplified by PCR using primers flanking polymorphic site of 140 base pairs. PCR products were used as templates for two PEXT reactions using two primers containing 3'-terminal nucleotides, which were complementary to either normal or mutant alleles. If the template and allele-specific primer were completely complementary, the latter was elongated with DNA polymerase. The resulting extension product contained biotin residue due to the presence of biotinylated deoxyuridine triphosphate (B-dUTP) in the reaction mixture. The products were analyzed using obelin-streptavidin conjugates. The optimal PEXT-reaction conditions were found, which ensured a high reliability of SNP genotyping. A new approach to simultaneously revealing both alleles in one well was developed using two bioluminescent reporters. The efficiency of the proposed approach was shown in the study of clinical DNA samples.

Держатели документа:
[Krasitskaya, V. V.
Burakova, L. P.
Frank, L. A.] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Akademgorodok, Russia
[Pyshnaya, I. A.] Russian Acad Sci, Siberian Branch, Inst Chem Biol & Fundamental Med, Novosibirsk 630090, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Krasitskaya, V.V.; Burakova, L.P.; Pyshnaya, I.A.; Frank, L.A.

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Bioluminescent detection probe for tick-borne encephalitis virus immunoassay [Text] / L. P. Burakova [et al.] // Anal. Bioanal. Chem. - 2015. - Vol. 407, Is. 18. - P5417-5423, DOI 10.1007/s00216-015-8710-6. - Cited References:19. - The work was supported by the Russian Academy of Sciences, Siberian Branch, within the framework of the Interdisciplinary Integration Project No. 139 and the State budget allocated to the fundamental research at the Russian Academy of Sciences (project No. VI 57.1.1). . - ISSN 1618-2642. - ISSN 1618-2650

РУБ Biochemical Research Methods + Chemistry, Analytical
Рубрики:
COELENTERAZINE-BINDING PROTEIN
ENZYME-IMMUNOASSAY
RENILLA-MUELLERI
Кл.слова (ненормированные):
Tick-borne encephalitis virus -- Single-chain antibody -- Luciferase -- Immunoassay
Аннотация: To facilitate the detection of the tick-borne encephalitis virus (TBEV), the causative agent of one of the most severe human neuroinfections, we have developed an immunoassay based on bioluminescent hybrid protein 14D5a-Rm7 as a detection probe. The protein containing Renilla luciferase as a reporter and a single-chain variable fragment (scFv) of murine immunoglobulin to TBEV as a recognition element was constructed, produced by bacterial expression, purified, and tested. Both domains were shown to reveal their specific biological properties-affinity to the target antigen and bioluminescent activity. Hybrid protein was applied as a label for solid-phase immunoassay of the antigens, associated with the tick-borne encephalitis virus (native glycoprotein E or extracts of the infected strain of lab ticks). The assay demonstrates high sensitivity (0.056 ng of glycoprotein E; 10(4)-10(5) virus particles or 0.1 pg virions) and simplicity and is competitive with conventional methods for detection of TBEV.

WOS,
Scopus
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Inst Chem Biol & Fundamental Med, Siberian Branch, Novosibirsk 630090, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Inst Poliomyelitis & Viral Encephalitides, Moscow 142782, Russia.
Res Inst Nat Foci Infect, Omsk 644080, Russia.

Доп.точки доступа:
Burakova, Ludmila P.; Kudryavtsev, Alexander N.; Stepanyuk, Galina A.; Baykov, Ivan K.; Morozova, Vera V.; Tikunova, Nina V.; Dubova, Maria A.; Lyapustin, Victor N.; Yakimenko, Valeri V.; Frank, Ludmila A.; Russian Academy of Sciences, Siberian Branch [139]; Russian Academy of Sciences [VI 57.1.1]

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