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
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 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\24845346
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Matrix+Biol
2014 ; 37
(ä): 15-24
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Members of the thrombospondin gene family bind stromal interaction molecule 1 and
regulate calcium channel activity
#MMPMID24845346
Duquette M
; Nadler M
; Okuhara D
; Thompson J
; Shuttleworth T
; Lawler J
Matrix Biol
2014[Jul]; 37
(ä): 15-24
PMID24845346
show ga
The thrombospondins (TSPs) are a family of matricellular proteins that regulate
cellular phenotype through interactions with a myriad of other proteins and
proteoglycans. We have identified a novel interaction of the members of the TSP
gene family with stromal interaction molecule 1 (STIM1). This association is
robust since it is preserved in Triton X-100, can be detected with multiple
anti-TSP-1 and anti-STIM1 antibodies, and is detected in a wide range of cell
types. We have also found that STIM1 co-immunoprecipitates with TSP-4 and
cartilage oligomeric matrix protein (COMP), and that a recombinant version of the
N-terminal domain of STIM1 binds to the signature domain of TSP-1 and COMP. The
association of the TSPs with STIM1 is observed in both the presence and absence
of calcium indicating that the calcium-dependent conformation of the signature
domain of TSPs is not required for binding. Thus, this interaction could occur in
the ER under conditions of normal or low calcium concentration. Furthermore, we
observed that the expression of COMP in HEK 293 cells decreases STIM1-mediated
calcium release activated calcium (CRAC) channel currents and increases
arachidonic acid calcium (ARC) channel currents. These data indicate that the
TSPs regulate STIM1 function and participate in the reciprocal regulation of two
channels that mediate calcium entry into the cell.