2hak

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Template:STRUCTURE 2hak

Contents

Catalytic and ubiqutin-associated domains of MARK1/PAR-1

Template:ABSTRACT PUBMED 16803889

Disease

[MARK1_HUMAN] Note=Genetic variations in MARK1 may be associated with susceptibility to autism. MARK1 is overexpressed in the prefrontal cortex of patients with autism and causes changes in the function of cortical dendrites.

Function

[MARK1_HUMAN] Serine/threonine-protein kinase involved in cell polarity and microtubule dynamics regulation. Phosphorylates DCX, MAP2, MAP4 and MAPT/TAU. Involved in cell polarity by phosphorylating the microtubule-associated proteins MAP2, MAP4 and MAPT/TAU at KXGS motifs, causing detachment from microtubules, and their disassembly. Involved in the regulation of neuronal migration through its dual activities in regulating cellular polarity and microtubule dynamics, possibly by phosphorylating and regulating DCX. Also acts as a positive regulator of the Wnt signaling pathway, probably by mediating phosphorylation of dishevelled proteins (DVL1, DVL2 and/or DVL3).[1][2]

About this Structure

2hak is a 8 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

  • Marx A, Nugoor C, Muller J, Panneerselvam S, Timm T, Bilang M, Mylonas E, Svergun DI, Mandelkow EM, Mandelkow E. Structural variations in the catalytic and ubiquitin-associated domains of microtubule-associated protein/microtubule affinity regulating kinase (MARK) 1 and MARK2. J Biol Chem. 2006 Sep 15;281(37):27586-99. Epub 2006 Jun 27. PMID:16803889 doi:10.1074/jbc.M604865200
  • Panneerselvam S, Marx A, Mandelkow EM, Mandelkow E. Structure of the catalytic and ubiquitin-associated domains of the protein kinase MARK/Par-1. Structure. 2006 Feb;14(2):173-83. PMID:16472737 doi:10.1016/j.str.2005.09.022
  1. ↑ Sun TQ, Lu B, Feng JJ, Reinhard C, Jan YN, Fantl WJ, Williams LT. PAR-1 is a Dishevelled-associated kinase and a positive regulator of Wnt signalling. Nat Cell Biol. 2001 Jul;3(7):628-36. PMID:11433294 doi:10.1038/35083016
  2. ↑ Kojima Y, Miyoshi H, Clevers HC, Oshima M, Aoki M, Taketo MM. Suppression of tubulin polymerization by the LKB1-microtubule-associated protein/microtubule affinity-regulating kinase signaling. J Biol Chem. 2007 Aug 10;282(32):23532-40. Epub 2007 Jun 15. PMID:17573348 doi:10.1074/jbc.M700590200

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