Difference between revisions of "Phosphatase Subfamily MTMR1"

From PhosphataseWiki
Jump to: navigation, search
(Created page with "__NOTOC__ Phosphatase Classification: FoldCC1: Superfamily CC1: Phosphatase_Family_...")
 
Line 1: Line 1:
 
__NOTOC__
 
__NOTOC__
  
[[Phosphatase classification|Phosphatase Classification]]: [[Phosphatase_Fold_CC1|FoldCC1]]: [[Phosphatase_Superfamily_CC1|Superfamily CC1]]:  [[Phosphatase_Family_Myotubularin|Family Myotubularin]]
+
[[Phosphatase classification|Phosphatase Classification]]: [[Phosphatase_Fold_CC1|FoldCC1]]: [[Phosphatase_Superfamily_CC1|Superfamily CC1]]:  [[Phosphatase_Family_Myotubularin|Family Myotubularin]]: [[Phosphatase_Subfamily_MTMR1|MTMR1]]
  
  
Line 7: Line 7:
  
 
===Evolution===
 
===Evolution===
CTDSPL2 is found as a single copy gene in most eukaryotes. It is absent from all but a few basal fungi, and is also lost in Drosophilids. The human gene is called CTSDPL2, HSPC058, HSPC129, or SCP4
+
MTMR1 is found throughout holozoan. It consists of three members in human, MTM1, MTMR1 and MTMR2. In fruit fly and C elegans, a single copy is found.
  
 
===Domain Structure===
 
===Domain Structure===
Usually a C-terminal phosphatase domain with a relatively poorly conserved N-terminal extension
+
MTMR1 has a [http://pfam.xfam.org/family/PF02893.15 GRAM] and phosphatase domain. GRAM domain is similar to PH domain in structure and is found in membrane-associated proteins.
  
 
===Catalytic activity===
 
===Catalytic activity===

Revision as of 16:47, 30 December 2014


Phosphatase Classification: FoldCC1: Superfamily CC1: Family Myotubularin: MTMR1


CTDSPL2 (CTD small phosphatase like 2) is a poorly-studied RNA polymerase CTD phosphatase which is found in most eukaryotes.

Evolution

MTMR1 is found throughout holozoan. It consists of three members in human, MTM1, MTMR1 and MTMR2. In fruit fly and C elegans, a single copy is found.

Domain Structure

MTMR1 has a GRAM and phosphatase domain. GRAM domain is similar to PH domain in structure and is found in membrane-associated proteins.

Catalytic activity

Human CTDSPL2 has experimentally-shown activity [1] and orthologs are also predicted to be active.

Functions

Human CTDSPL2 binds and dephosphorylates Smad1/5/8, and attenuates signaling through the BMP pathway [2]

Related Kinases

See Phosphorylation of RNA polymerase II C-terminal domain.

References

  1. Qian H, Ji C, Zhao S, Chen J, Jiang M, Zhang Y, Yan M, Zheng D, Sun Y, Xie Y, and Mao Y. Expression and characterization of HSPC129, a RNA polymerase II C-terminal domain phosphatase. Mol Cell Biochem. 2007 Sep;303(1-2):183-8. DOI:10.1007/s11010-007-9472-z | PubMed ID:17487459 | HubMed [qian]
  2. Zhao Y, Xiao M, Sun B, Zhang Z, Shen T, Duan X, Yu PB, Feng XH, and Lin X. C-terminal domain (CTD) small phosphatase-like 2 modulates the canonical bone morphogenetic protein (BMP) signaling and mesenchymal differentiation via Smad dephosphorylation. J Biol Chem. 2014 Sep 19;289(38):26441-26450. DOI:10.1074/jbc.M114.568964 | PubMed ID:25100727 | HubMed [Zhao]
All Medline abstracts: PubMed | HubMed