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Exon/intron boundaries, novel polymorphisms, and association analysis with schizophrenia of the human synaptic vesicle monoamine transporter (SVMT) gene

Molecular Psychiatry volume 6, pages 456–460 (2001)Cite this article

Abstract

The synaptic vesicular monoamine transporter (SVMT), alternatively vesicular monoamine transporter 2 (VMAT2), pumps cytosolic monoamines including dopamine, norepinephrine, serotonin, and histamine into synaptic vesicles. Altered functions of SVMT have been implicated in the pathogensis of several neuropsychiatric diseases. We determined exon/intron boundaries of the human SVMT gene and performed mutational analysis for the exonic and neighboring intronic regions of the gene. Detected polymorphisms were subject to association analysis with schizophrenia in a family-based design. The human SVMT gene consists, of 16 exons and 15 introns, which is consistent with the murine SVMT gene. When mutational analysis was performed by the single strand conformational polymorphism (SSCP) analysis, we found two and four single nucleotide polymorphisms (SNPs) in exons and neighboring introns, respectively. Neither exonic SNP results in an amino acid change. In family-based association analyses in a sample of 50 Japanese schizophrenics and their parents, no significant association was found for the intronic polymorphisms. Our data suggest that there is no common polymorphism in the SVMT gene affecting the primary structure of the human SVMT protein. Furthermore, we obtained no evidence for the major effect of the novel polymorphisms on susceptibility to schizophrenia.

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Acknowledgements

We thank Ms A Kondo and N Okuyama for their help in the laboratory. This study was supported by Ministry of Health and Welfare, Japan.

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  1. Department of Psychiatry, Teikyo University School of Medicine 11–1, Kaga 2 Chome, Itabashi-ku, Tokyo, 173–8605, Japan

    H Kunugi, S Ishida, A Akahane & S Nanko

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  1. H Kunugi
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  2. S Ishida
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  3. A Akahane
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  4. S Nanko
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Correspondence to H Kunugi.

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Kunugi, H., Ishida, S., Akahane, A. et al. Exon/intron boundaries, novel polymorphisms, and association analysis with schizophrenia of the human synaptic vesicle monoamine transporter (SVMT) gene. Mol Psychiatry 6, 456–460 (2001). https://doi.org/10.1038/sj.mp.4000895

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