To optimize the labeling and visualization of PCR products we tested different variables, including deoxynucleotide concentration and ratio, dilution of labeled product, number of PCR cycles, and use of one-step or nested labeling protocols. Labeling was achieved using a fixed amount of labeled dATP, whose relative specific activity was varied by adding increasing amounts of cold dATP. Optimal ...

The growth hormone gene could be an attractive candidate gene for milk production in goats. Single-strand conformation polymorphism was used to identify polymorphism at the goat growth hormone (gGH) gene. For this purpose, genotyping of 90 Talli goat breeds was performed. Nine conformational patterns were observed in exon 4 of the gGH gene, with frequencies of 27.7% for the homozygous pattern (...

BACKGROUND Establishment of a sensitive, reliable and non-invasive method for the diagnosis of early-stage colorectal cancer is necessary, because colorectal cancer can be cured surgically if diagnosed early. The aim of the present study was to evaluate the feasibility of using PCR-SSCP (polymerase chain reaction-single strand conformation polymorphism) analysis of the DNA extracted from the co...

This study was conducted to assess the potential association between leptin (LEP) gene polymorphisms and type 2 diabetes mellitus (T2DM) in Iraqi patients. Genomic DNA extracted from 120 diabetic subjects 100 controls. Three specific PCR fragments were designed flank three highly frequent single nucleotide polymorphism (SNP)s within LEP, rs11761556, rs12706832 rs2167270. The amplified loci geno...

Mutations in the rpoB locus confer conformational changes leading to defective binding of rifampin (RIF) to rpoB and consequently resistance in Mycobacterium tuberculosis. Polymerase chain reaction-single-strand conformation polymorphism (PCR-SSCP) was established as a rapid screening test for the detection of mutations in the rpoB gene, and direct sequencing has been unambiguously applied to c...

Either PCR-mediated single strand conformation polymorphism (SSCP) analysis or DNA sequencing of rpoB DNA (157 bp) can be used as a rapid screening method for the detection of mutations related to the rifampin resistance of Mycobacterium tuberculosis. However, due to the nonspecific amplification of rpoB DNA from nontuberculous mycobacteria these methods cannot be directly applied to clinical s...

The aim of the study was to develop a reliable and cost-effective method for detection nonsense mutation in APAF1 gene causing lethal effect called HH1 (Holstein Haplotype1) evaluate its prevalence sample Polish Holstein-Friesian bulls. One hundred seventy eight bulls born between 1996 2017 were included analysis. They kept four artificial insemination centers have pedigree known carrier HH1. A...