Cloning and Characterization of Protein Prenyltransferase Alpha Subunit in Rice
水稻中异戊二烯转移酶α亚基的克隆与表征
イネのタンパク質プレニルトランスフェラーゼアルファサブユニットのクローニングと特性化
쌀에서 단백질 프레닐트랜스퍼라제 알파 서브유닛의 복제 및 특성화
Clonación y caracterización de la subunidad alfa de la proteína preniltransferasa en el arroz
Clonage et caractérisation de la sous-unité alpha de la protéine prényltransférase dans le riz
Клонирование и характеристика альфа-субъединицы протеиновой пренилтрансферазы в рисе
Wang Tao 王涛, Lou Lijuan 娄丽娟, Li Zeyu, Shang Lianguang 商连光, Wang Quan 汪泉
Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture/Genome Analysis Laboratory of Ministry of Agriculture and Rural Affairs/Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
中国 深圳 中国农业科学院深圳农业基因组研究所 岭南现代农业科学与技术广东省实验室深圳分中心 农业部农业基因数据分析重点实验室
Protein prenylation plays a crucial role in plant development and stress response. We report the function of prenyltransferase α-subunit in rice. Protein-protein interactions showed that the farnesyl- transferase (OsPFT)/geranylgeranyltransferase-I (OsPGGT I-α) protein interacted together with OsPFT-β and OsPGGT I-β. The α- and β-subunits of OsPFT formed a heterodimer for the transfer of a farnesyl group from farnesyl pyrophosphate to the CaaX-box-containing peptide N-dansyl-GCVLS.
Furthermore, the tissue expression patterns of the OsPFT and OsPGGT I subunits were similar, and these subunits were localized in the cytoplasm and nucleus. Moreover, OsPFT/OsPGGT I-α-deletion homozygous rice mutants had a lethal phenotype, and the heterozygous mutants exhibited reduced pollen viability. These results indicated that prenylation plays an important role in rice development.
