Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=26365782
&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 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 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\26365782
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Commun
2015 ; 6
(ä): 8205
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Resolution of structure of PIP5K1A reveals molecular mechanism for its regulation
by dimerization and dishevelled
#MMPMID26365782
Hu J
; Yuan Q
; Kang X
; Qin Y
; Li L
; Ha Y
; Wu D
Nat Commun
2015[Sep]; 6
(ä): 8205
PMID26365782
show ga
Type I phosphatidylinositol phosphate kinase (PIP5K1) phosphorylates the head
group of phosphatidylinositol 4-phosphate (PtdIns4P) to generate PtdIns4,5P2,
which plays important roles in a wide range of cellular functions including Wnt
signalling. However, the lack of its structural information has hindered the
understanding of its regulation. Here we report the crystal structure of the
catalytic domain of zebrafish PIP5K1A at 3.3?Å resolution. This molecule forms a
side-to-side dimer. Mutagenesis study of PIP5K1A reveals two adjacent interfaces
for the dimerization and interaction with the DIX domain of the Wnt signalling
molecule dishevelled. Although these interfaces are located distally to the
catalytic/substrate-binding site, binding to these interfaces either through
dimerization or the interaction with DIX stimulates PIP5K1 catalytic activity.
DIX binding additionally enhances PIP5K1 substrate binding. Thus, this study
elucidates regulatory mechanisms for this lipid kinase and provides a paradigm
for the understanding of PIP5K1 regulation by their interacting molecules.
|*Dimerization
[MESH]
|Adaptor Proteins, Signal Transducing/*metabolism
[MESH]