Structure of Arabidopsis SAL1: A nucleotide phosphatase involved in drought tolerance — ASN Events
  1. Schedule
  2. Session 7: Poster Session B - Including Happy Hour & Trade Display
  3. Structure of Arabidopsis SAL1: A nucleotide phosphatase involved in drought tolerance

Structure of Arabidopsis SAL1: A nucleotide phosphatase involved in drought tolerance (#203)

Peter D Mabbitt 1 , Kai X Chan 2 , Gonzalo M Estavillo 2 , Colin J Jackson 1 , Barry J Pogson 2
  1. Research School of Chemistry, The Australian National University, Canberra, ACT, Australia
  2. ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, ACT, Australia

 Drought results in significant reductions to plant yield. Under stress conditions, such as drought, signaling molecules are sent from the chloroplast to the nucleus where they elicit a transcriptional response. One of the key signaling molecules that is up regulated under drought conditions is 3’-phosphoadenosine 5’- phosphate (PAP). The SAL1 protein is a chloroplast localized phosphatase with specificity for PAP and as such acts as a negative regulator of drought tolerance. An understanding of SAL1 structure and regulation will aid in the creation of drought tolerant cultivars.  We have solved the structure of the Sal1 protein from Arabidopsis thaliana to 3.4 Å resolution.