title: [Distribution of MIF -173 single nucleotide polymorphism checked by tetra-primer amplification refractory mutation system].
abstract: OBJECTIVE
  To study the distribution of macrophagemigration inhibitory factor gene (MIF) -173 single nucleotide polymorphism (SNP) of Chinese Han population in Zhejiang province.
  
  
  METHODS
  The DNA samples were extracted from EDTA blood of 142 unrelated healthy individuals. Alleles of MIF -173 SNP were genotyped by using the techniques of tetra-primer amplification refractory mutation system (ARMS) and restriction fragment length polymorphisms (RFLP)-PCR Meantime the PCR products were cloned and sequenced.
  
  
  RESULTS
  The authors detected three kinds of genotypes at the MIF -173 locus, and no deviation was observed from Hardy-Weinberg equilibrium. The final results were the same completely, whatever either tetra-primer ARMS or RFLP-PCR was used to check the MIF -173 single nucleotide polymorphism. Statistical analysis showed that the distributions of MIF -173 SNP alleles and genotype frequencies were significantly different between Chinese Han population and European Caucasian(P< 0.01), but no significant difference demonstrated to happen between Chinese and Japanese(P> 0.05).
  
  
  CONCLUSIONS
  Tetra-primer ARMS is an accurate, rapid and economical method for SNP genotyping.There exists ethnic difference in the distribution of MIF -173 SNP alleles.
authors.affiliation: Department of Gastroenterology, Zhejiang Provincial Peopleos Hospital, Hangzhou, Zhejiang, 310014 PR China. feibaoying6924@tom.com
authors.forename: Bao-ying
authors.initials: BY
authors.lastname: Fei
authors.forename: Huo-xiang
authors.initials: HX
authors.lastname: Lu
authors.forename: Jian-min
authors.initials: JM
authors.lastname: Yang
mesh_terms: D000328:Adult; D000483:Alleles; D044466:Asian People / Q000235:genetics; D001483:Base Sequence; D002681:China; D004252:DNA Mutational Analysis / Q000379:methods; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006801:Humans; D019746:Intramolecular Oxidoreductases / Q000235:genetics*; D008263:Macrophage Migration-Inhibitory Factors / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D008969:Molecular Sequence Data; D009154:Mutation; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*
chemical_list: D008263:Macrophage Migration-Inhibitory Factors; D019746:Intramolecular Oxidoreductases; C515598:MIF protein, human