2.7.8.27 H285A site-directed mutagenesis, inactive mutant with wild-type localization pattern, overview. The point mutation only influences SMS2 catalytic activity but not the enzyme topology 691074 2.7.8.27 H328A site-directed mutagenesis, inactive mutant with wild-type localization pattern, overview. The point mutation only influences SMS2 catalytic activity but not the enzyme topology 691074 2.7.8.27 H332A site-directed mutagenesis, inactive mutant with wild-type localization pattern, overview. The point mutation only influences SMS2 catalytic activity but not the enzyme topology 691074 2.7.8.27 additional information construction of an SMS1 interference vector, enzyme silencing by shRNA in Hep-G2 cells leading a downregulation rate of 45% and reduced enzyme activity of 56% 738307 2.7.8.27 additional information construction of an SMS2 interference vector, enzyme silencing by shRNA in Hep-G2 cells leading to a downregulation rate of 67% and reduced enzyme activity of 63% 738307 2.7.8.27 additional information downregulation of SMS in Huh7 cells by expression of siRNA, overview 691046 2.7.8.27 additional information downregulation of SMS1 or SMS2 by siRNA oligonucleotides targeting SMS1 or SMS2 in HeLA cells reduces de novo synthesis of sphingomyelin, overview 690832 2.7.8.27 additional information endogenous SMS2 expression in HeLa cells is reduced by about 80% after treatment with SMS2 siRNA, but is unaffected after treatment with lamin A or SMS1 siRNAs. Impact of SMS1 and SMS2 depletion on the lipid composition of HeLa cells, overview 692991 2.7.8.27 additional information generation of SMS2 KO mice -, 737776 2.7.8.27 additional information knockout of SMS1 in T-cells by transfection of SMS1-short-interfering RNA into Jurkat T cells, impaired TCR signaling through dysfunction of lipid rafts in SMS1-knockdown T cells, overview. CD3-induced tyrosine phosphorylation and association of linker for activation of T cell with ZAP-70 and Grb2 and phosphorylation of protein kinase C are also severely impaired in Jurkat-SMS1/kd cells 692624