Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=24344188
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
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 211.6 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\24344188
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Cell+Biol
2013 ; 203
(6
): 957-69
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
KNL1 facilitates phosphorylation of outer kinetochore proteins by promoting
Aurora B kinase activity
#MMPMID24344188
Caldas GV
; DeLuca KF
; DeLuca JG
J Cell Biol
2013[Dec]; 203
(6
): 957-69
PMID24344188
show ga
Aurora B kinase phosphorylates kinetochore proteins during early mitosis,
increasing kinetochore?microtubule (MT) turnover and preventing premature
stabilization of kinetochore?MT attachments. Phosphorylation of kinetochore
proteins during late mitosis is low, promoting attachment stabilization, which is
required for anaphase onset. The kinetochore protein KNL1 recruits Aurora
B?counteracting phosphatases and the Aurora B?targeting factor Bub1, yet the
consequences of KNL1 depletion on Aurora B phospho-regulation remain unknown.
Here, we demonstrate that the KNL1 N terminus is essential for Aurora B activity
at kinetochores. This region of KNL1 is also required for Bub1 kinase activity at
kinetochores, suggesting that KNL1 promotes Aurora B activity through
Bub1-mediated Aurora B targeting. However, ectopic targeting of Aurora B to
kinetochores does not fully rescue Aurora B activity in KNL1-depleted cells,
suggesting KNL1 influences Aurora B activity through an additional pathway. Our
findings establish KNL1 as a requirement for Aurora B activity at kinetochores
and for wild-type kinetochore?MT attachment dynamics.