Asian-Australasian Journal of Animal Sciences

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
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Molecular characterization and expression pattern of a novel Keratin-associated protein 11.1 gene in the Liaoning cashmere goat (Capra hircus)

  • Jin, Mei (Faculty of Life Science, Liaoning Normal University, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery) ;
  • Cao, Qian (Faculty of Life Science, Liaoning Normal University, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery) ;
  • Wang, Ruilong (Faculty of Life Science, Liaoning Normal University, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery) ;
  • Piao, Jun (Faculty of Life Science, Liaoning Normal University, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery) ;
  • Zhao, Fengqin (Faculty of Life Science, Liaoning Normal University, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery) ;
  • Piao, Jing'ai (Faculty of Life Science, Liaoning Normal University, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery)
  • Received : 2016.01.19
  • Accepted : 2016.06.09
  • Published : 2017.03.01
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Abstract

Objective: An experiment was conducted to determine the relationship between the KAP11.1 and the regulation wool fineness. Methods: In previous work, we constructed a skin cDNA library and isolated a full-length cDNA clone termed KAP11.1. On this basis, we conducted a series of bioinformatics analysis. Tissue distribution of KAP11.1 mRNA was performed using semi-quantitative reverse transcription polymerase chain reaction (RT-PCR) analysis. The expression of KAP11.1 mRNA in primary and secondary hair follicles was performed using real-time PCR (real-time polymerase chain reaction) analysis. The expression location of KAP11.1 mRNA in primary and secondary hair follicles was performed using in situ hybridization. Results: Bioinformatics analysis showed that KAP11.1 gene encodes a putative 158 amino acid protein that exhibited a high content of cysteine, serine, threonine, and valine and has a pubertal mammary gland) structural domain. Secondary structure prediction revealed a high proportion of random coils (76.73%). Semi-quantitative RT-PCR showed that KAP11.1 gene was expressed in heart, skin, and liver, but not expressed in spleen, lung and kidney. Real time PCR results showed that the expression of KAP11.1 has a higher expression in catagen than in anagen in the primary hair follicles. However, in the secondary hair follicles, KAP11.1 has a significantly higher expression in anagen than in catagen. Moreover, KAP11.1 gene has a strong expression in inner root sheath, hair matrix, and a lower expression in hair bulb. Conclusion: We conclude that KAP11.1 gene may play an important role in regulating the fiber diameter.

Keywords

References

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