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Isolation and molecular characterization of the porcine SLC6A14 gene excludes it as a candidate gene for fat deposition and growth

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Yang G. L., Ren J., Zhang S. H., Huang W. B., Guo Y. M., Duan Y. Y., Liu M. Z., Huang L. S.

Journal of Applied Genetics

2010

vol. 51

issue 3

299-308

The gene encoding solute carrier family 6 member 14 (SLC6A14) has been considered as a candidate gene affecting human obesity. In this study, full-length cDNA (2237 bp) and DNA sequence (24 541 bp) of the porcine SLC6A14 gene were isolated. The porcine SLC6A14 cDNA contains a 5'-untranslated region of 57 bp, a 3'-untranslated region of 254 bp, and an open reading frame of 1926 bp, encoding a deduced protein of 642 amino acids with a molecular mass of 72. 475 kDa and an isoelectric point of 7.82. The genomic structure of the porcine SLC6A14 gene is similar to mammalian orthologs, particularly in terms of exon size and exon/intron boundaries. It comprises 14 exons and 13 introns. A semi-quantitative RT-PCR showed that the porcine SLC6A14 mRNA expression was tissue-specific. Four SLC6A14 single-nucleotide polymorphisms (SNPs) were identified, and 3 informative SNPs were chosen for genotyping in a White Duroc ? Erhualian resource population with phenotype data of growth and fatness traits. The association analysis showed that the c.1438 G>A nonsynonymous polymorphism was associated with birth weight and 21-day body weight (P < 0.05), while g.7944 A>T was associated with 46-day body weight. Linkage and radiation hybrid mapping assigned SLC6A14 to a region around SW1522 on SSCXp13, which did not fall in the confidence interval of the quantitative trait locus (QTL) for growth and fatness traits on SSCX in the resource population. These results indicate that SLC6A14 is not a positional candidate gene for the QTL affecting fatness and growth traits in pigs.

The Design and the First Test Results of a Fast LTD Stage

100%

Chen L., Zhou L., Zou W., Ren J., Li Y., Wu S., Xie W., Feng S., Deng J.

Acta Physica Polonica A

2009

vol. 115

issue 6

1186-1188

Linear transformer driver stages are designed to be used as a primary energy storage in high power pulsed generators. In this report, the design and test results of the linear transformer driver stage prototype that delivers ≈100 kA fast pulse with 133 ns FWHM into a ≈0.87 Ω resistive load are described. This stage consists of 20 (100 kV, 20 nF) storage capacitors that are arranged in 10 identical bricks located evenly around the axis of the stage. Each brick contains two capacitors, a multi-gap switch, and the output connector that transfers the energy to the resistive load. The outer diameter of the stage is ≈1.5 m, at a length of ≈20 cm. The stage is developed to demonstrate the possibility of the fast linear transformer driver technology to create high power pulsed generators.

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1 Acta Physica Polonica A

1 Journal of Applied Genetics

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2 Ren J.

1 Chen L.

1 Deng J.

1 Duan Y. Y.

1 Feng S.

1 Guo Y. M.

1 Huang L. S.

1 Huang W. B.

1 Li Y.

1 Liu M. Z.

1 Wu S.

1 Xie W.

1 Yang G. L.

1 Zhang S. H.

1 Zhou L.

1 Zou W.

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Isolation and molecular characterization of the porcine SLC6A14 gene excludes it as a candidate gene for fat deposition and growth

The Design and the First Test Results of a Fast LTD Stage