At2g02950 MVTLTPSSASTPKTSFDFMKNNNSHSSLYVSSSSYLSSKEDALVTTKKLMEPSKTLNMSINPKQEEFGDEKKMVKKAPEDPEIGVFGAEKYFNGDMDSDQGSSVLSLTNPEVERTVVDSKQSAKKSTGTPSVRSESSWNSQSVLLQNKLVNSCNSSFKEKKNSNGQIQKVTNNKKSFLANLGCKCACSDGDSVDVEEKTSVKRSADPNISVITMRSSADMNTELIKIQKQEELSQRKSLEVFGSPVAIEKKSSVVQKKLPLPPWKSRTEEDDTKSEGSDSSSDLFEIEGLTGNPKPFLTRQGSDPASPTCYAPSEVSVEWSIVTASAADFSVMSECATSPVRRNRPTQIPRIPITAKSAPQRRKSSSSSGGNGFLMSCKSHKSVMVSGDLDRRSSMNKTQPSYVPRFPMETTKPKSFETRRRISNSSISHTQSSLLYSQ T17M13.12 PKS1 PKS1_ARATH 439 May be responsible for light-regulated cytoplasmic sequestration of phytochromes or may be a negative regulator of phytochrome B signaling. Component of the network that modulates the very low-fluence response (VLFR) branch of phyA signaling. Acts positively in PHOT1 signaling. Regulates phytochrome-mediated photomorphogenesis and hypocotyl phototropism. Involved in the control of leaf flattening and leaf positioning. Promotes negative root phototropism and negatively regulates root gravitropism. May act by controlling auxin homeostasis. Protein PHYTOCHROME KINASE SUBSTRATE 1