Academic Journal

Heterotrimeric G Proteins in Plants: Canonical and Atypical Gα Subunits

التفاصيل البيبلوغرافية
العنوان: Heterotrimeric G Proteins in Plants: Canonical and Atypical Gα Subunits
المؤلفون: Natsumi Maruta, Yuri Trusov, Alan M. Jones, Jose R. Botella
المصدر: International Journal of Molecular Sciences; Volume 22; Issue 21; Pages: 11841
بيانات النشر: Multidisciplinary Digital Publishing Institute
سنة النشر: 2021
المجموعة: MDPI Open Access Publishing
مصطلحات موضوعية: heterotrimeric G proteins, GTPase, signal transduction, GDP-GTP exchange, plant biology, G protein activation, phosphorylation
جغرافية الموضوع: agris
الوصف: Heterotrimeric GTP-binding proteins (G proteins), consisting of Gα, Gβ and Gγ subunits, transduce signals from a diverse range of extracellular stimuli, resulting in the regulation of numerous cellular and physiological functions in Eukaryotes. According to the classic G protein paradigm established in animal models, the bound guanine nucleotide on a Gα subunit, either guanosine diphosphate (GDP) or guanosine triphosphate (GTP) determines the inactive or active mode, respectively. In plants, there are two types of Gα subunits: canonical Gα subunits structurally similar to their animal counterparts and unconventional extra-large Gα subunits (XLGs) containing a C-terminal domain homologous to the canonical Gα along with an extended N-terminal domain. Both Gα and XLG subunits interact with Gβγ dimers and regulator of G protein signalling (RGS) protein. Plant G proteins are implicated directly or indirectly in developmental processes, stress responses, and innate immunity. It is established that despite the substantial overall similarity between plant and animal Gα subunits, they convey signalling differently including the mechanism by which they are activated. This review emphasizes the unique characteristics of plant Gα subunits and speculates on their unique signalling mechanisms.
نوع الوثيقة: text
وصف الملف: application/pdf
اللغة: English
Relation: Molecular Plant Sciences; https://dx.doi.org/10.3390/ijms222111841
DOI: 10.3390/ijms222111841
الاتاحة: https://doi.org/10.3390/ijms222111841
Rights: https://creativecommons.org/licenses/by/4.0/
رقم الانضمام: edsbas.2932CF2C
قاعدة البيانات: BASE