title: A novel Tetra-primer ARMS-PCR based assay for genotyping SNP rs12303764(G/T) of human Unc-51 like kinase 1 gene.
abstract: Various case-control studies have shown association of single nucleotide polymorphism rs12303764(G/T) in ULK1 with crohn's disease. The techniques used in these studies were time consuming, complicated and require sophisticated/expensive instruments. Therefore, in order to overcome these problems, we have developed a new, rapid and cost effective Tetra-primer ARMS-PCR assay to genotype single nucleotide polymorphism rs12303764(G/T) of ULK1 gene. We manually designed allele specific primers. DNA fragment amplified using outer primers was sequenced to obtain samples with known genotypes (GG, GT and TT) for further use in the development of T-ARMS-PCR assay. Amplification conditions were optimized for parameters; annealing temperature, Taq DNA polymerase and primers. The developed T-ARMS-PCR assay was applied to genotype one hundred samples from healthy individuals. Genotyping results of 10 DNA samples from healthy individuals for rs12303764(G/T) by T-ARMS-PCR assay and sequencing were concordant. The newly developed assay was further applied to genotype samples from 100 healthy individuals of North Indian origin. Genotype frequencies were 9, 34 and 57 % for GG, GT and TT, respectively. Allele frequencies were 0.26 and 0.74 for G and T, respectively. The allele frequencies were in Hardy-Weinberg's equilibrium (p = 0.2443). T-ARMS-PCR assay developed in our laboratory for genotyping rs12303764 (G/T) of ULK1 gene is time saving and cost-effective as compared to the available methods. Furthermore, this is the first study reporting allelic and genotype frequencies of ULK1 rs12303764 (G/T) variants in North Indian population.
authors: Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, 173234, Himachal Pradesh, India.
authors: Rohit
authors: R
authors: Randhawa
authors: Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India.
authors: Ajay
authors: A
authors: Duseja
authors: Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, 173234, Himachal Pradesh, India. hchangotra@yahoo.com.
authors: Harish
authors: http://orcid.org/0000-0002-1465-5257
authors: H
authors: Changotra
mesh_terms: D000328:Adult; D000071189:Autophagy-Related Protein-1 Homolog / Q000235:genetics*; D017931:DNA Primers / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D060005:Genotyping Techniques / Q000191:economics / Q000379:methods*; D064368:Healthy Volunteers; D006801:Humans; D007194:India; D047908:Intracellular Signaling Peptides and Proteins / Q000235:genetics*; D008297:Male; D016133:Polymerase Chain Reaction / Q000191:economics / Q000379:methods; D020641:Polymorphism, Single Nucleotide; D015203:Reproducibility of Results; D044465:White People / Q000235:genetics*
chemical_list: D017931:DNA Primers; D047908:Intracellular Signaling Peptides and Proteins; D000071189:Autophagy-Related Protein-1 Homolog; C484754:ULK1 protein, human
keywords: Autophagy; Crohn’s disease; SNP; T-ARMS-PCR; ULK1; rs 12303764(G/T)