ARABIDOPSIS  ACYL-LIPID METABOLISM 
          
              
      
      
  ENZYME & PROTEIN DATA 
       
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        Sac domain-containing Phosphoinositide Phosphatase
      
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       Locus Data & Links    (May need to scroll right or left to show columns)
      
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                                SAC1
                               
                          
                      
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                                Mutant Char.; In vitro assay
                               
                          
                      
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                              1 Ref
                            
                           
                          
                            
                              Zhong, R.Q., Burk, D.H., Nairn, C.J., Wood-Jones, A., Morrison, W.H., and Ye, Z.H.  (2005).   Mutation of SAC1, an Arabidopsis SAC domain phosphoinositide phosphatase, causes alterations in cell morphogenesis, cell wall synthesis, and actin organization.   Plant Cell  17  ,1449-1466.
                             
                           
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                      predominant expression in vascular tissues and fibers in nonelongating parts of stems 
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                                RHD4
                               
                          
                      
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                                Mutant Char.; In vitro assay
                               
                          
                      
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                              1 Ref
                            
                           
                          
                            
                              Thole, J.M., Vermeer, J.E.M., Zhang, Y.L., Gadella, T.W.J., and Nielsen, E.   (2008).   ROOT HAIR DEFECTIVE4 encodes a phosphatidylinositol-4-phosphate phosphatase required for proper root hair development in Arabidopsis thaliana.   Plant Cell  20  ,381-395.
                             
                           
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                      Required for root hair development. 
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                                SAC9
                               
                          
                      
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                                Mutant Char.
                               
                          
                      
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                              1 Ref
                            
                           
                          
                            
                              Williams, M.E., Torabinejad, J., Cohick, E., Parker, K., Drake, E.J., Thompson, J.E., Hortter, M., and DeWald, D.B.  (2005).   Mutations in the arabidopsis phosphoinositide phosphatase gene SAC9 lead to overaccumulation of PtdIns(4,5)P-2 and constitutive expression of the stress-response pathway.   Plant Physiology  138  ,686-700.
                             
                           
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                      accumulates elevated levels of PtdIns(4,5)P2 and Ins(1,4,5)P3. The mutant plants have characteristics of constitutive stress responses. 
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