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Introduction: Nephrotic syndrome (NS) is a genetic disease belonging to a heterogeneous group of glomerular disorders, which mainly occurs within the children. Linkage analysis using single nucleotide polymorphisms (SNP) is used as an indirect method in molecular diagnosis of the disease. A large number of SNP markers have been introduced in NPHS2gene in the available electronic databases.

Method: In the present study, the genotype and informative status of rs2274625 marker in NPHS2 genewas investigated in 120 unrelated healthy individuals using Tetra-primer ARMS PCR technique and newly designed primers. Allelic frequency and presence of Hardy Weinberg Equilibrium (HWE) was estimated using GenePop website. Furthermore, PowerMarker software was utilized in order to compute the index of polymorphism information content (PIC).

Results: The study results indicated allele frequency of 97% and 3% for C and T alleles, respectively, in regard with rs2274625 marker within Isfahan population. Moreover, the PIC for the rs2274625 marker was 0.5%, and HWE revealed the equilibruim of the study population in regard with the related marker.

Conclusion: As the study findings indicated, rs2274625 could be introduced as an SNP marker in the linkage analysis in order to molecularly trace NPHS2 gene mutations in molecular NS diagnosis in Isfahan population as a representative sample of the Iranian population.