Cloning and Bioinformatics Analysis of GUCY1A3 and SFXN1 Genes in Cattle |
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| Authors: | JIN Cong-fei LIANG Ting-yu LIU Xin-feng GUO Hong |
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| Institution: | College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin 300384, China |
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| Abstract: | In this study, the human GUCY1A3 and SFXN1 genes sequences in GenBank were chosen as probes to BLAST and got mRNA,and expressed sequence tags (ESTs) of bovine GUCY1A3 and SFXN1 genes. The bovine GUCY1A3 and SFXN1 genes were amplified by sequencing assembling of ESTs and cDNA sequences using RT-PCR. Then,we analyzed encoding proteins of bovine GUCY1A3 and SFXN1 genes with bioinformatics methods. Sequence analysis showed that the bovine GUCY1A3 gene CDS sequence was 2 076 bp,which encoded 691 amino acids, and the bovine SFXN1 gene contained a CDS region of 969 bp, which encoded 322 amino acids. The GUCY1A3 protein contained a CYCc domain, and the phosphorylation sites located in threonine, serine and tyrosine residue. The subcellular localization of GUCY1A3 protein was in the cytoplasm and it did not belong to the secreted protein. The secondary structure of GUCY1A3 protein was mainly composed of alpha helix. The SFXN1 protein contained three transmembrane helical regions and one low complexity sequence, and the phosphorylation sites located in serine, tyrosine and threonine residue. The subcellular localization of SFXN1 protein was in the endoplasmic reticulum and membrane, and it belonged to the transmembrane protein. The secondary structure of SFXN1 was mainly composed of alpha helix. The results laid the foundation for further studies of expression regulation mechanism and function of GUCY1A3 and SFXN1 genes in cattle. |
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| Keywords: | cattle GUCY1A3 gene SFXN1 gene cloning bioinformatics analysis |
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