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Actions of plant Argonautes: predictable or unpredictable?
1Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA; Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, TX 77843, USA.
Abstract:
Argonaute (AGO) proteins are the key effector of RNA-induced silencing complex (RISC). Land plants typically encode numerous AGO proteins, and they can be typically divided into two major functional groups based on the species of their housed small RNAs (sRNAs). One group of AGOs, guided by 24-nucleotide (nt) sRNAs, canonically function in nuclei to implement transcriptional gene silencing (TGS), whereas the other group of AGOs, guided by 21-nt sRNAs, act in the cytoplasm to fulfill posttranscriptional gene silencing (PTGS). Many new discoveries have been recently made on functions and mechanisms of AGO proteins in plants, and some of the findings change our views on the conventional classification and roles of AGO proteins. In this review, we summarize our current knowledge of AGO proteins in plants.
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However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
Plant Cell Wall