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RISS 인기검색어
- 검색키워드
- 저자 : ( Cemal Turan ) (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
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Localization of Germin Genes and Their Products in Developing Wheat Coleoptiles
( Mahmut Caliskan ),( Birgul Ozcan ),( Cemal Turan ),( Andrew C. Cuming ) 생화학분자생물학회 2004 BMB Reports Vol.37 No.3
Germination is a process which characterized with nescient synthesis of genes. Among the genes synthesized during the germination of wheat embryos, germin genes, proteins and their enzymatic activity were defined. Germin is a water soluble homopentameric glycoprotein which is remarkable resistant to degradation by a broad range of proteases including pepsin. Germin proteins found to have strong oxalate oxidase activity which produces hydrogen peroxide by degrading oxalic acid. The current study, aimed to localize the germin genes, proteins and enzymatic activities in developing coleoptiles which is a rapidly growing protective tissue of leaf primordium and shoot apex. Non-radioactively labeled germin riboprobes were employed to localize germin mRNAs in situ. FITC(Fluorescein isothio-cyanate) and alkaline phosphatase linked anti-germin antibodies were used to localize germin proteins under the fluorescence and light microscopy and finally germin enzymatic activity was localized by using appropriate enzyme assay. The results revealed that in coleoptiles germin genes, proteins and their enzymatic activity were predominantly associated with the cells of epidermis and vascular bundle sheath cells.
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Localization of Germin Genes and Their Products in Developing Wheat Coleoptiles
Caliskan, Mahmut,Ozcan, Birgul,Turan, Cemal,Cuming, Andrew C. Korean Society for Biochemistry and Molecular Biol 2004 Journal of biochemistry and molecular biology Vol.37 No.3
Germination is a process which characterized with nescient synthesis of genes. Among the genes synthesized during the germination of wheat embryos, germin genes, proteins and their enzymatic activity were defined. Germin is a water soluble homopentameric glycoprotein which is remarkable resistant to degradation by a broad range of proteases including pepsin. Germin proteins found to have strong oxalate oxidase activity which produces hydrogen peroxide by degrading oxalic acid. The current study, aimed to localize the germin genes, proteins and enzymatic activities in developing coleoptiles which is a rapidly growing protective tissue of leaf primordium and shoot apex. Non-radioactively abeled germin riboprobes were employed to localize germin mRNAs in situ. FITC (Fluorescein isothiocyanate) and alkaline phosphatase linked anti-germin antibodies were used to localize germin proteins under the fluorescence and light microscopy and finally germin enzymatic activity was localized by using appropriate enzyme assay. The results revealed that in coleoptiles germin genes, proteins and their enzymatic activity were predominantly associated with the cells of epidermis and vascular bundle sheath cells.
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Hydroxyapatite production and characterization from four pufferfish species teeth
Servet Ahmet Doğdu,Cemal Turan,Tolga Depci,Ersin Bahçeci,Kemal Sangün,Deniz Ayas 한양대학교 청정에너지연구소 2024 Journal of Ceramic Processing Research Vol.25 No.1
The pufferfishes are invasive alien fish species in the Mediterranean Sea with a powerful toxin in its body called tetrodotoxin. It has no economic value and is very abundant all over the world’s marine waters. Calcium phosphate bioceramic materialsespecially hydroxyapatite are commonly applied as implant resources because of their close resemblance in structure withnatural bone. In this study, natural hydroxyapatite was obtained from the teeth of four pufferfish, the obtained products werecharacterised and their potential uses in the biomedical industry were revealed. Pufferfish teeth were extracted from the fish,thoroughly rinsed using deionized water, measured, and subsequently placed within a furnace set at a temperature of 105 °C. Once dehydrated, the teeth were finely pulverized using a planetary ball mill. This powdered material was then subjected tovarious analyses, including elemental composition assessment, TTX analysis, and SEM-EDX examinations. Ca/P atomic ratiovalues of Lagocephalus suezensis, L. guentheri, Sphoeroides pachygaster and Torguigener favimaculasus teeth were obtainedas 1.58, 1.64, 1.67 and 1.47, respectively. The analysis findings suggest that pufferfish teeth could serve as a promising naturalalternative source for biomedical and various other industries in need of natural hydroxyapatite. This hydroxyapatite can beutilized for creating fillers, implants, bone powder, and prostheses with applications in biomedicine and various industries. However, it should not be forgotten that the necessary tests must be carried out before any human use is made available.
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