PCR for GAPDH (glyceraldehyde-3-phosphate dehydrogenase) detection

SC Sonia Carmen Lopo Costa
JF Jéssica de Souza Freitas
FC Fábio Santos Carvalho
MP Maria Julia Salim Pereira
MC Matheus Dias Cordeiro
AF Adivaldo Henrique da Fonseca
MJ Márcia Mariza Gomes Jusi
RM Rosangela Zacarias Machado
AM Alexandre Dias Munhoz
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To verify DNA integrity and the presence of potential inhibitors, negative samples were subjected to PCR for detection of the GAPDH gene using primers described by Birkenheuer et al. [38] (Table (Table1).1). In the PCR reactions, a final volume of 25 μl was used, composed of 5 μl of genomic DNA, 10 × reaction buffer, 2.0 mM of MgCl2, 0.2 mM of each dNTP, 0.4 μM of each primer, 1.25 U of Taq polymerase, and ultrapure water until the final volume was reached. The amplification protocol used consisted of an initial denaturation step at 95 °C for 5 min, followed by 40 cycles at 94 °C for 30 s for denaturation, annealing at 52 °C for 1 min, extension at 72 °C for 1 min, and final extension at 72 °C for 5 min [39].

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