Degradation of Phytochrome Interacting Factor 3 in Phytochrome-Mediated Light Signaling Export

@article{citeulike:4191810, abstract = {Plant photoreceptors regulate various developmental processes. Among the photoreceptors, phytochromes, red and far-red light receptors, regulate light responses through many signaling components, including phytochrome-interacting proteins. The functional relationships among phytochromes and their interacting proteins, however, have not been clearly established. Here, we sought to identify a functional relationship between phytochromes and phytochrome interacting factor 3 (PIF3). We demonstrate that PIF3 is polyubiquitinated rapidly and subsequently degraded in PHYA and PHYB-mediated light signaling. We also show that the degradation of PIF3 is mediated by the 26S proteasome. Our data indicate that light-stimulated phytochromes cause the degradation of their interacting protein, PIF3, by the 26S proteasome. 10.1093/pcp/pch125}, author = {Park, Eunae and Kim, Jonghyun and Lee, Yeon and Shin, Jieun and Oh, Eunkyoo and Chung, Won-Il and Liu, Jang R. and Choi, Giltsu}, citeulike-article-id = {4191810}, citeulike-linkout-0 = {http://dx.doi.org/10.1093/pcp/pch125}, citeulike-linkout-1 = {http://pcp.oxfordjournals.org/cgi/content/abstract/45/8/968}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/15356322}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=15356322}, day = {15}, doi = {10.1093/pcp/pch125}, journal = {Plant Cell Physiol.}, keywords = {degradation, pif3, proteolysis}, month = {August}, number = {8}, pages = {968--975}, posted-at = {2009-03-18 10:29:28}, priority = {2}, title = {Degradation of Phytochrome Interacting Factor 3 in Phytochrome-Mediated Light Signaling}, url = {http://dx.doi.org/10.1093/pcp/pch125}, volume = {45}, year = {2004} }

TY - JOUR ID - citeulike:4191810 L3 - citeulike-article-id:4191810 N2 - Plant photoreceptors regulate various developmental processes. Among the photoreceptors, phytochromes, red and far-red light receptors, regulate light responses through many signaling components, including phytochrome-interacting proteins. The functional relationships among phytochromes and their interacting proteins, however, have not been clearly established. Here, we sought to identify a functional relationship between phytochromes and phytochrome interacting factor 3 (PIF3). We demonstrate that PIF3 is polyubiquitinated rapidly and subsequently degraded in PHYA and PHYB-mediated light signaling. We also show that the degradation of PIF3 is mediated by the 26S proteasome. Our data indicate that light-stimulated phytochromes cause the degradation of their interacting protein, PIF3, by the 26S proteasome. 10.1093/pcp/pch125 IS - 8 JF - Plant Cell Physiol. EP - 975 TI - Degradation of Phytochrome Interacting Factor 3 in Phytochrome-Mediated Light Signaling VL - 45 SP - 968 KW - degradation KW - pif3 KW - proteolysis AU - Park, Eunae AU - Kim, Jonghyun AU - Lee, Yeon AU - Shin, Jieun AU - Oh, Eunkyoo AU - Chung, Won-Il AU - Liu, Jang AU - Choi, Giltsu PY - 2004/08/15/ UR - http://dx.doi.org/10.1093/pcp/pch125 ER -