Identification of TENP as the Gene Encoding Chicken Egg White Ovoglobulin G2 and Demonstration of Its High Genetic Variability in Chickens
| العنوان: | Identification of TENP as the Gene Encoding Chicken Egg White Ovoglobulin G2 and Demonstration of Its High Genetic Variability in Chickens |
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| المؤلفون: | Yoshizane Maeda, Keiji Kinoshita, Hisham R. Ibrahim, Yoichi Matsuda, Takeshi Shimogiri, Masaoki Tsudzuki |
| المصدر: | PLoS ONE, Vol 11, Iss 7, p e0159571 (2016) PLoS ONE |
| بيانات النشر: | Public Library of Science (PLoS), 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | 0301 basic medicine, Molecular biology, lcsh:Medicine, Artificial Gene Amplification and Extension, Protein Sequencing, Biochemistry, Polymerase Chain Reaction, Poultry, Homology (biology), Sequencing techniques, Protein sequencing, Coding region, Gamefowl, Amino Acids, lcsh:Science, Gel Electrophoresis, Genetics, Multidisciplinary, Organic Compounds, Sequence analysis, Agriculture, Complementary DNA, Nucleic acids, Chemistry, Vertebrates, Physical Sciences, Electrophoresis, Polyacrylamide Gel, Research Article, Egg white, Livestock, Protein family, Forms of DNA, Nucleotide Sequencing, Nerve Tissue Proteins, Biology, Birds, Electrophoretic Techniques, 03 medical and health sciences, Egg White, Animals, Genetic variability, Gene, DNA sequence analysis, Polymorphism, Genetic, 030102 biochemistry & molecular biology, Organic Chemistry, lcsh:R, Organisms, Chemical Compounds, Biology and Life Sciences, Proteins, DNA, Research and analysis methods, Molecular biology techniques, 030104 developmental biology, Amino Acid Substitution, Fowl, Amniotes, lcsh:Q, Chickens |
| الوصف: | Ovoglobulin G2 (G2) has long been known as a major protein constituent of chicken egg white. However, little is known about the biochemical properties and biological functions of G2 because the gene encoding G2 has not been identified. Therefore, the identification of the gene encoding G2 and an analysis of its genetic variability is an important step toward the goal of understanding the biological functions of the G2 protein and its utility in poultry production. To identify and characterize the gene encoding G2, we separated G2 from egg white using electrophoresis on a non-denaturing polyacrylamide gel. Two polymorphic forms of G2 protein (G2A and G2B), with different mobilities (fast and slow respectively), were detected by staining. The protein band corresponding to G2B was electro-eluted from the native gel, re-electrophoresed under denaturing conditions and its N-terminal sequence was determined by Edman degradation following transfer onto a membrane. Sequencing of the 47 kDa G2B band revealed it to be identical to TENP (transiently expressed in neural precursors), also known as BPI fold-containing family B, member 2 (BPIFB2), a protein with strong homology to a bacterial permeability-increasing protein family (BPI) in mammals. Full-length chicken TENP cDNA sequences were determined for 78 individuals across 29 chicken breeds, lines, and populations, and consequently eleven non-synonymous substitutions were detected in the coding region. Of the eleven non-synonymous substitutions, A329G leading to Arg110Gln was completely associated with the noted differential electrophoretic mobility of G2. Specifically G2B, with a slower mobility is encoded by A329 (Arg110), whereas G2A, with a faster mobility, is encoded by G329 (Gln110). The sequence data, derived from the coding region, also revealed that the gene encoding G2 demonstrates significant genetic variability across different chicken breeds/lines/populations. These variants, and how they correlate with egg white properties, may allow us to understand further G2's functions. |
| تدمد: | 1932-6203 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb67ffa7245ffda459e1d9f2f08faf60Test https://doi.org/10.1371/journal.pone.0159571Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....eb67ffa7245ffda459e1d9f2f08faf60 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19326203 |
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