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Frequency of the C1236T, G2677T/A and C3435T MDR1 gene polymorphisms in the Serbian population. 2011

Maja Milojkovic, and Slavica Stojnev, and Ivan Jovanovic, and Srdjan Ljubisavljevic, and Vladisav Stefanovic, and Raute Sunder-Plassman
Institute of Pathophysiology, University School of Medicine Zorana Djindjica 81, 18000 Nis, Serbia. maja@medfak.ni.ac.rs

The multi-drug resistance 1 (MDR1) gene encodes for a P-glycoprotein (PGP), which acts as a gate-keeper against various kinds of xenobiotics. Several single nucleotide polymorphisms (SNPs) in the MDR1 gene that may influence PGP level and function have been identified. The aim of this study was to simultaneously analyze the three most important MDR1 SNPs, C3435T, G2677T/A and C1236T, in the Serbian population and to compare the results with those published for other ethnic groups. A group of 158 unrelated, healthy subjects was included in the present study. For determination of MDR1 SNPs, a multiplexed mutagenically separated PCR was performed. The genotype frequency of the analyzed MDR1 SNPs was as follows: 3435 nt - 0.19 (CC), 0.54 (CT) and 0.27 (TT); 2677 nt - 0.26 (GG), 0.52 (GT), 0.15 (TT), 0.03 (GA) and 0.064 (TA), and 1236 nt - 0.23 (CC), 0.61 (CT) and 0.16 (TT). Our results for the Serbian population could be relevant for further investigation of drugs that are substrates of PGPand for studies of interethnic diversity in MDR1 polymorphism frequency.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D005260 Female Females
D005787 Gene Frequency The proportion of one particular in the total of all ALLELES for one genetic locus in a breeding POPULATION. Allele Frequency,Genetic Equilibrium,Equilibrium, Genetic,Allele Frequencies,Frequencies, Allele,Frequencies, Gene,Frequency, Allele,Frequency, Gene,Gene Frequencies
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D055771 Serbia A republic located south of HUNGARY, west of ROMANIA and BULGARIA, and part of the former YUGOSLAVIA. The capital is Belgrade.
D055815 Young Adult A person between 19 and 24 years of age. Adult, Young,Adults, Young,Young Adults
D018435 ATP Binding Cassette Transporter, Subfamily B A subfamily of transmembrane proteins from the superfamily of ATP-BINDING CASSETTE TRANSPORTERS that are closely related in sequence to ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B, MEMBER 1. When overexpressed, they function as ATP-dependent efflux pumps able to extrude lipophilic drugs (especially ANTINEOPLASTIC AGENTS) from cells, causing multidrug resistance (DRUG RESISTANCE, MULTIPLE). Although ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B share functional similarities to MULTIDRUG RESISTANCE-ASSOCIATED PROTEINS they are two distinct subclasses of ATP-BINDING CASSETTE TRANSPORTERS, and have little sequence homology. Multidrug Resistance Proteins,P-Glycoproteins,ATP Binding Cassette Transporter, Sub-Family B,ATP-Binding Cassette, Sub-Family B Proteins,ATP Binding Cassette Transporter, Sub Family B,ATP Binding Cassette, Sub Family B Proteins,P Glycoproteins

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