Difference between revisions of "Phosphatase Family Myotubularin"

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== Subfamilies ==
 
== Subfamilies ==
  
===[[MTMR1]]===
+
===== MTMR1 subfamily =====
  
 +
===== MTMR3 subfamily =====
  
===[[C2-MTMR1]]===
+
===== MTMR5 subfamily =====
The feature of this subfamily is a C2 domain attached to the R1-like sequence.  
+
Inactive myotubularin subfamily.
  
===[[MTMR3]]===
+
===== MTMR1 subfamily =====
  
 +
===== MTMR9 subfamily =====
  
===[[MTMR5]]===
 
Inactive myotubularin subfamily.
 
  
===[[MTMR6]]===
+
===== MTMR10 subfamily =====
  
  
===[[MTMR9]]===
+
===== MTMR14 subfamily =====
  
  
===[[MTMR10]]===
+
===== C2-MTMR1 subfamily =====
 
+
The feature of this subfamily is a C2 domain attached to the R1-like sequence.
 
+
===[[MTMR14]]===
+
  
 +
===== Ymr1 subfamily =====
  
===[[Ymr1]]===
 
  
 
== Reference ==
 
== Reference ==

Revision as of 04:13, 29 May 2014

Phosphatase Classification: Superfamily Cys-based I: Myotubularin

Myotubularins are 3-phosphatases specific for PtdIns3P and PtdIns(3,5)P2, two PIs that function within the endosomal-lysomal pathway . In yeast, there is a single myotubularin Ymr1p, and its functions appear to be redundant with those of other 3-phosphatases. However, in C. elegans, which has six myotubularins, several of the myotublarins have non-redundant roles in regulating PtdIns3P during endocytosis. In human, there are 14 myotublarins, and mutations in several of them lead to myotubular myopathy and Charcot-Marie-Tooth peripheral neuropathy. Interestingly, around half of myotubularins are catalytically inactive. One of their possible function is regulating active myotubularins by protein interaction. For details, see the review [1].

Subfamilies

MTMR1 subfamily
MTMR3 subfamily
MTMR5 subfamily

Inactive myotubularin subfamily.

MTMR1 subfamily
MTMR9 subfamily
MTMR10 subfamily
MTMR14 subfamily
C2-MTMR1 subfamily

The feature of this subfamily is a C2 domain attached to the R1-like sequence.

Ymr1 subfamily

Reference

  1. Robinson FL and Dixon JE. Myotubularin phosphatases: policing 3-phosphoinositides. Trends Cell Biol. 2006 Aug;16(8):403-12. DOI:10.1016/j.tcb.2006.06.001 | PubMed ID:16828287 | HubMed [Robinson06]