Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=25056917&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
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25056917.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 EMBO+Rep 2014 ; 15 (9): 938-47 Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Molecular basis of crosstalk between oncogenic Ras and the master regulator of hematopoiesis GATA-2 #MMPMID25056917
Katsumura KR; Yang C; Boyer ME; Li L; Bresnick EH
EMBO Rep 2014[Sep]; 15 (9): 938-47 PMID25056917show ga
Disease mutations provide unique opportunities to decipher protein and cell function. Mutations in the master regulator of hematopoiesis GATA-2 underlie an immunodeficiency associated with myelodysplastic syndrome and leukemia. We discovered that a GATA-2 disease mutant (T354M) defective in chromatin binding was hyperphosphorylated by p38 mitogen-activated protein kinase. p38 also induced multisite phosphorylation of wild-type GATA-2, which required a single phosphorylated residue (S192). Phosphorylation of GATA-2, but not T354M, stimulated target gene expression. While crosstalk between oncogenic Ras and GATA-2 has been implicated as an important axis in cancer biology, its mechanistic underpinnings are unclear. Oncogenic Ras enhanced S192-dependent GATA-2 phosphorylation, nuclear foci localization, and transcriptional activation. These studies define a mechanism that controls a key regulator of hematopoiesis and a dual mode of impairing GATA-2-dependent genetic networks: mutational disruption of chromatin occupancy yielding insufficient GATA-2, and oncogenic Ras-mediated amplification of GATA-2 activity.