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Type Ii Protein Arginine Methyltransferase 5 (Prmt5) Is Required For Circadian Pperiod Determination In Arabidopsis Thaliana, Sunghyun Hong, Hae-Ryoung Song, Kerry Lutz, Randall A. Kerstetter, Todd P. Michael, C. Robertson Mcclung
Type Ii Protein Arginine Methyltransferase 5 (Prmt5) Is Required For Circadian Pperiod Determination In Arabidopsis Thaliana, Sunghyun Hong, Hae-Ryoung Song, Kerry Lutz, Randall A. Kerstetter, Todd P. Michael, C. Robertson Mcclung
Dartmouth Scholarship
Posttranslational modification is an important element in circadian clock function from cyanobacteria through plants and mammals. For example, a number of key clock components are phosphorylated and thereby marked for subsequent ubiquitination and degradation. Through forward genetic analysis we demonstrate that protein arginine methyltransferase 5 (PRMT5; At4g31120) is a critical determinant of circadian period in Arabidopsis. PRMT5 is coregulated with a set of 1,253 genes that shows alterations in phase of expression in response to entrainment to thermocycles versus photocycles in constant temperature. PRMT5 encodes a type II protein arginine methyltransferase that catalyzes the symmetric dimethylation of arginine residues (Rsme2). …