·常規(guī)信息  最近更新:2022年5月16日 6:53:00
                基因(座)名稱蛋白絲氨酸/蘇氨酸磷酸酶; 細(xì)胞分裂素磷脂酶抑制因子
                Ser/Thr phosphatase; cryptic inhibitor of cytokinin phosphorelay
                基因符號(hào)GL3.1; qGL3-1; qGL3; OsPPKL1
                所在染色體3 (已克。

                GL3.1(Os03g44500, Qi et al. 2012), qGL3-1(LOC_Os03g44500, Hu et al. 2012), qGL3/OsPPKL1(Os03g44500, Zhang et al. 2012, Gao et al. 2019), 位于同一個(gè)基因位點(diǎn)...

                qGL39311能去磷酸化OsGSK3,但qGL3N411沒有這個(gè)活性。與擬南芥BIN2去磷酸化后降解不同,qGL3去磷酸化OsGSK3并使其穩(wěn)定,進(jìn)而抑制油菜素內(nèi)酯信號(hào)傳導(dǎo)(Gao et al. 2019)。

                GL3.1 編碼一個(gè)屬于蛋白磷酸酶PPKL家族的絲氨酸/蘇氨酸磷酸酶。GL3.1 通過調(diào)控細(xì)胞周期蛋白T1;3控制水稻籽粒大小和產(chǎn)量,GL3.1能直接去磷酸化底物T1;3,后者在水稻中表達(dá)下調(diào)會(huì)導(dǎo)致籽粒變短(Qi et al. 2012)。

                qGL3 編碼一個(gè)含有兩個(gè)Kelch功能域的蛋白磷酸酶OsPPKL1,在水稻粒長(zhǎng)調(diào)控中發(fā)揮負(fù)調(diào)節(jié)子的作用,且Kelch功能域在OsPPKL1的負(fù)調(diào)節(jié)功能中是充分必要的。位于OsPPKL1中第二個(gè)Kelch功能域上保守的AVLDT區(qū)域的D364E的稀有等位變異qgl3 導(dǎo)致長(zhǎng)粒表型(Zhang et al. 2012)。

                控制籽粒大小的PPKL1是一個(gè)細(xì)胞分裂素信號(hào)新組分,PPKL1的D364位點(diǎn)通過引誘細(xì)胞分裂素磷酸轉(zhuǎn)移蛋白AHP2上的磷酸基團(tuán),降低從AHP2向細(xì)胞分裂素響應(yīng)因子RR21蛋白的磷酸中繼效率,抑制水稻籽粒發(fā)育(Liu et al. 2022)。

                qGL3使OsVIL1去磷酸化以調(diào)節(jié)油菜素甾醇(BR)信號(hào)(Gao et al. 2022)。

                【相關(guān)登錄號(hào)】
                contigs及其產(chǎn)物:AP014959BAS85481
                cDNAs及其產(chǎn)物:AK288069
                參考基因組位點(diǎn):Os03g0646900(RAP-DB, PhytoAB公司抗體服務(wù)←→ LOC_Os03g44500(本地、MSU-RGAP, 百格基因突變體服務(wù)←→ LOC107277011(NCBI)
                參考基因組產(chǎn)物:XM_015776333XP_015631819
                uniprot庫(kù)登錄號(hào):Q10G19
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                ·ONTOLOGY及相關(guān)基因
                表型特征籽粒產(chǎn)量(TO:0000396), 油菜素甾醇敏感性(TO:0002677), 粒長(zhǎng)(TO:0000734), 千粒重(TO:0000592)
                分子功能絲氨酸/蘇氨酸蛋白磷酸酶活性(GO:0004722), 細(xì)胞周期蛋白結(jié)合(GO:0030332)
                生物進(jìn)程油菜素甾醇信號(hào)通路調(diào)控(GO:1900457), 種子發(fā)育調(diào)控(GO:0080050)
                ·參考文獻(xiàn)
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                  A Cryptic Inhibitor of Cytokinin Phosphorelay Controls Rice Grain Size
                  Molecular Plant, 2022, 15(2): 293-307
                2Xiuying Gao;Jiaqi Zhang;Jianbo Li;Yuji Wang;Rong Zhang;Huaying Du;Jing Yin;Guang Cai;Ruqin Wang;Baoyi Zhang;Zhuang Zhao;Hongsheng Zhang;Ji Huang
                  The phosphoproteomic and interactomic landscape of qGL3/OsPPKL1-mediated brassinosteroid signaling in rice
                  The Plant Journal, 2022, 109(5): 1048-1063
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                  Diversification of plant agronomic traits by genome editing of brassinosteroid signaling family genes in rice
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                  Rice qGL3/OsPPKL1 Functions with the GSK3/SHAGGY-Like Kinase OsGSK3 to Modulate Brassinosteroid Signaling
                  The Plant Cell, 2019, 31(5): 1077-1093
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                  The additive effects of GS3 and qGL3 on rice grain length regulation revealed by genetic and transcriptome comparisons
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                  水稻粒長(zhǎng)基因GS3和qGL3功能標(biāo)記的設(shè)計(jì)及應(yīng)用
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                7Zejun Hu;Haohua He;Shiyong Zhang;Fan Sun;Xiaoyun Xin;Wenxiang Wang;Xi Qian;Jingshui Yang;Xiaojin Luo
                  A Kelch Motif-Containing Serine/Threonine Protein Phosphatase Determines the Large Grain QTL Trait in Rice
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                  The novel quantitative trait locus GL3.1 controls rice grain size and yield by regulating Cyclin-T1;3
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                  Rare allele of OsPPKL1 associated with grain length causes extra-large grain and a significant yield increase in rice
                  Proceedings of the National Academy of Sciences, 2012, 109(52): 21534-21539
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