Molecular Basis of Class III Ligand Recognition by PDZ3 in Murine Protein Tyrosine Phosphatase PTPN13.
Molecular Basis of Class III Ligand Recognition by PDZ3 in Murine Protein Tyrosine Phosphatase PTPN13.
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鼠蛋白酪氨酸磷酸酶 PTPN13 中 PDZ3 识别 III 类配体的分子基础
DOI:
10.1016/j.jmb.2018.08.023
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发表时间:
2018
影响因子:
5.6
通讯作者:
Stoll R
中科院分区:
文献类型:
--
作者:
Heumann R;Erdmann KS;Stoll R
Protein tyrosine phosphatase PTPN13, also known as PTP-BL in mice, represents a large multi-domain non-transmembrane scaffolding protein that contains five consecutive PDZ domains. Here, we report the solution structures of the extended murine PTPN13 PDZ3 domain in its apo form and in complex with its physiological ligand, the carboxy-terminus of protein kinase C-related kinase-2 (PRK2), determined by multidimensional NMR spectroscopy. Both in its ligand-free state and when complexed to PRK2, PDZ3 of PTPN13 adopts the classical compact, globular D/E fold. PDZ3 of PTPN13 binds five carboxy-terminal amino acids of PRK2viaa groove located between the EB-strand and the DB-helix. The PRK2 peptide resides in the canonical PDZ3 binding cleft in an elongated manner and the amino acid side chains in position P0 and P-2, cysteine and aspartate, of the ligand face the groove between EB-strand and DB-helix, whereas the PRK2 side chains of tryptophan and alanine located in position P-1 and P-3 point away from the binding cleft. These structures are rare examples of selective class III ligand recognition by a PDZ domain and now provide a basis for the detailed structural investigation of the promiscuous interaction between the PDZ domains of PTPN13 and their ligands. They will also lead to a better understanding of the proposed scaffolding function of these domains in multi-protein complexes assembled by PTPN13 and could ultimately contribute to low molecular weight antagonists that might even act on the PRK2 signaling pathway to modulate rearrangements of the actin cytoskeleton.
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影响因子:
4.1
作者:
Kazuhiko Maekawa;Noriko Imagawa;Akira Naito;Shigenori Harada;Osamu Yoshie;Shin Takagi
通讯作者:
Shin Takagi
影响因子:
2.9
作者:
Lieke C. J. van den Berk;Elena Landi;T. Walma;G. W. Vuister;L. Dente;W. Hendriks
通讯作者:
W. Hendriks
DOI:
10.1002/chin.200644278
发表时间:
2006
期刊:
ChemInform
影响因子:
--
作者:
C. Schwieters;J. Kuszewski;G. Clore
通讯作者:
G. Clore
DOI:
10.1083/jcb.121.3.491
发表时间:
1993-05
期刊:
The Journal of cell biology
影响因子:
--
作者:
Itoh M;Nagafuchi A;Yonemura S;Kitani-Yasuda T;Tsukita S;Tsukita S
通讯作者:
Tsukita S
影响因子:
0.9
作者:
C. Fetzer;Janelle Sauvageau;Gerd Kock;Carsten Berghaus;J. Bangert;Markus Dicks;R. Heumann;K. S. Erdmann;R. Stoll
通讯作者:
R. Stoll