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Characterization and mutation analysis of the human formin-2 (FMN2) gene in women with unexplained infertility.

Abstract：

OBJECTIVE:Formin-2 (Fmn2) mutant mice produce oocytes with meiosis I arrest. Our aim was to describe the human FORMIN-2 (FMN2) gene and to identify DNA sequence polymorphisms in patients with unexplained infertility and multiple failed IVF cycles. DESIGN:Institutional review board-approved observational case-control study. SETTING:Infertility center and university hospital. PATIENT(S):Sixty-two fertile controls and seven subjects with unexplained infertility. INTERVENTION(S):BLASTP (www.ncbi.nlm.nih.gov) was used to map the genomic DNA and complementary DNA sequence of FMN2. Genomic DNA was extracted from blood leukocyte samples. The polymerase chain reaction was used to amplify FMN2 gene exons for analysis by denaturing gradient gel electrophoresis. MAIN OUTCOME MEASURE(S):Characterization of the FMN2 gene and identification of fragment melting polymorphisms (FMPs). RESULT(S):FMN2 includes 411,960 base pairs (bp) of DNA with 6,204 bp in 18 exons. There was no difference in FMN2 FMP allele frequencies between the controls and subjects. One patient was homozygous for one FMP. CONCLUSION(S):The human FMN2 gene is conserved between evolutionarily diverse vertebrates. It is likely that FMN2 has the same function as Fmn2 in the mouse (i.e., maintenance of the meiotic spindle). Prospective identification of patients with meiosis I arrest is necessary to determine whether FMN2 mutations are a cause of unexplained infertility.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Ryley DA,Wu HH,Leader B,Zimon A,Reindollar RH,Gray MR

doi

10.1016/j.fertnstert.2004.10.051

keywords:

subject

Has Abstract

pub_date

2005-05-01 00:00:00

pages

1363-71

issue

5

eissn

0015-0282

issn

1556-5653

pii

S0015-0282(05)00124-X

journal_volume

83

pub_type

杂志文章

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