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10.1038/srep11349 http://scihub22266oqcxt.onion/10.1038/srep11349 C4471903!4471903!26087026     free     free     free Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Sci+Rep 2015 ; 5 (ä): ä Nephropedia Template TP {{tp|p=26087026|t=2015. Retrograde regulation of STIM1-Orai1 interaction and store-operated Ca2+ entry by calsequestrin |pdf=|usr=}}{{26087026}} gab.com Text Retrograde regulation of STIM1-Orai1 interaction and store-operated Ca2+ entry by calsequestrin JO: Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=26087026 #FOAvip Interaction between the endoplasmic reticulum (ER)-located stromal interaction molecue1 (STIM1) and the plasma membrane-located Ca2+ channel subunit, Orai1, underlies store-operated Ca2+ entry (SOCE). Calsequestrin1 (CSQ1), a sarcoplasmic reticulum Ca2+ buffering protein, inhibits SOCE, but the mechanism of action is unknown. We identified an interaction between CSQ1 and STIM1 in HEK293 cells. An increase in monomeric CSQ1 induced by depleted Ca2+ stores, or trifluoperazine (TFP), a blocker of CSQ folding and aggregation, enhanced the CSQ1-STIM1 interaction. In cells with Ca2+ stores depleted, TFP further increased CSQ1 monomerization and CSQ1-STIM1 interaction, but reduced the association of STIM1 with Orai1 and SOCE. Over-expression of CSQ1 or a C-terminal (amino acid 388?396) deletion mutant significantly promoted the association of CSQ1 with STIM1, but suppressed both STIM1-Orai1 interaction and SOCE, while over-expression of the C-terminal (amino acid 362?396) deletion mutant had no effect. The physical interaction between low polymeric forms of CSQ1 and STIM1 likely acts by interfering with STIM1 oligimerization and inhibits STIM1-Orai1 interaction, providing a brake to SOCE under physiological conditions. This novel regulatory mechanism for SOCE may also contribute to the pathological Ca2+ overload in calsequestrin deficient diseases, such as malignant hyperthermia and ventricular tachycardia. Twit Text FOAVip Retrograde regulation of STIM1-Orai1 interaction and store-operated Ca2+ entry by calsequestrin ????Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=26087026 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=26087026 #FOAvip English Wikipedia <ref>{{Cite pmid|26087026}}</ref> Retrograde regulation of STIM1-Orai1 interaction and store-operated Ca2+ entry by calsequestrin #MMPMID26087026 Wang L; Zhang L; Li S; Zheng Y; Yan X; Chen M; Wang H; Putney JW; Luo D Sci Rep 2015[]; 5 (ä): ä PMID26087026show ga Interaction between the endoplasmic reticulum (ER)-located stromal interaction molecue1 (STIM1) and the plasma membrane-located Ca2+ channel subunit, Orai1, underlies store-operated Ca2+ entry (SOCE). Calsequestrin1 (CSQ1), a sarcoplasmic reticulum Ca2+ buffering protein, inhibits SOCE, but the mechanism of action is unknown. We identified an interaction between CSQ1 and STIM1 in HEK293 cells. An increase in monomeric CSQ1 induced by depleted Ca2+ stores, or trifluoperazine (TFP), a blocker of CSQ folding and aggregation, enhanced the CSQ1-STIM1 interaction. In cells with Ca2+ stores depleted, TFP further increased CSQ1 monomerization and CSQ1-STIM1 interaction, but reduced the association of STIM1 with Orai1 and SOCE. Over-expression of CSQ1 or a C-terminal (amino acid 388?396) deletion mutant significantly promoted the association of CSQ1 with STIM1, but suppressed both STIM1-Orai1 interaction and SOCE, while over-expression of the C-terminal (amino acid 362?396) deletion mutant had no effect. The physical interaction between low polymeric forms of CSQ1 and STIM1 likely acts by interfering with STIM1 oligimerization and inhibits STIM1-Orai1 interaction, providing a brake to SOCE under physiological conditions. This novel regulatory mechanism for SOCE may also contribute to the pathological Ca2+ overload in calsequestrin deficient diseases, such as malignant hyperthermia and ventricular tachycardia. äRetrograde regulation of STIM1-Orai1 interaction and store-operated Ca(epmc).pdf DeepDyve Pubget Overpricing