نوع مقاله : علمی پژوهشی
نویسندگان
1 دانش آموخته کارشناسی ارشد، گروه بهنژادی و بیوتکنولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز، تبریز، ایران
2 استاد گروه بهنژادی و بیوتکنولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز، تبریز، ایران
3 دانشجوی کارشناسی ارشد بیوتکنولوژی کشاورزی.دانشگاه تبریز.تبریز.ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Drought stress is one of the major limiting factors in agricultural crop production, affecting plant physiological processes at various levels. One of the most important plant responses to drought stress is the alteration in protein expression, which depends on physicochemical properties such as half-life, stability index, isoelectric point, molecular weight, and extinction coefficient. Additionally, identifying motifs, patterns, and protein domains enables the prediction of structural and functional changes.
In this study, 18 drought-related proteins were selected based on previous proteomic research and analyzed using bioinformatics tools. Physicochemical properties were assessed using ProtParam, domains were identified with InterProScan and CDD, potential post-translational modification patterns were evaluated using ScanProsite, sequence similarity was determined via BLAST, and conserved blocks were identified through multiple sequence alignment using T-Coffee.
Results showed that 16 proteins had a half-life of more than 20 hours, their molecular weights ranged from 13 to 70 kDa, and 14 proteins had a stability index below 40, indicating they were predicted to be stable. Further analysis of α-tubulin and elongation factor Tu revealed that α-tubulin is a component of microtubules and plays a key role in cell growth. This protein contains TUBULINBAUTOREG and TUBULIN motifs and Alpha-tubulin and PLN00221 domains. Elongation factor Tu includes GTR1 and GTR2 motifs and four domains: EF-Tu, EFTU-II, EFTU-III, and PLN03127. Protein similarity analysis indicated that sequences with 30% to 70% similarity can contribute to a better understanding of protein structure and function.
کلیدواژهها [English]