Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 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\27798235
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Mol+Biol+Cell
2017 ; 28
(1
): 30-40
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
p120-catenin regulates VE-cadherin endocytosis and degradation induced by the
Kaposi sarcoma-associated ubiquitin ligase K5
#MMPMID27798235
Nanes BA
; Grimsley-Myers CM
; Cadwell CM
; Robinson BS
; Lowery AM
; Vincent PA
; Mosunjac M
; Früh K
; Kowalczyk AP
Mol Biol Cell
2017[Jan]; 28
(1
): 30-40
PMID27798235
show ga
Vascular endothelial (VE)-cadherin undergoes constitutive internalization driven
by a unique endocytic motif that also serves as a p120-catenin (p120) binding
site. p120 binding masks the motif, stabilizing the cadherin at cell junctions.
This mechanism allows constitutive VE-cadherin endocytosis and recycling to
contribute to adherens junction dynamics without resulting in junction
disassembly. Here we identify an additional motif that drives VE-cadherin
endocytosis and pathological junction disassembly associated with the
endothelial-derived tumor Kaposi sarcoma. Human herpesvirus 8, which causes
Kaposi sarcoma, expresses the MARCH family ubiquitin ligase K5. We report that K5
targets two membrane-proximal VE-cadherin lysine residues for ubiquitination,
driving endocytosis and down-regulation of the cadherin. K5-induced VE-cadherin
endocytosis does not require the constitutive endocytic motif. However,
K5-induced VE-cadherin endocytosis is associated with displacement of p120 from
the cadherin, and p120 protects VE-cadherin from K5. Thus multiple
context-dependent signals drive VE-cadherin endocytosis, but p120 binding to the
cadherin juxtamembrane domain acts as a master regulator guarding cadherin
stability.