Otolemur garnettii      DSP/Myotubularins


※ Myotubularins family introduction

    Myotubularins (MTM) phosphatases belong to a family of conserved DUSP phosphatase. The myotubularins is consist of 14 members which share a conserved protein tyrosine phosphatase catalytic domain and myotubularins is a large family of phosphoinositide lipid 3-phosphatases with specificity for PtdIns3P and PtdIns (3, 5) P2. Besides PTP domain, myotubularins also contains other motifs which may contribute to protein−protein or protein−lipid interactions. Myotubularins participates in endocytic pathway by regulating substrates PtdIns3P and PtdIns (3,5)P2 which are key regulator of endocytic pathway and myotubularins may function to suppress concentration of substrate lipids at inappropriate compartments. In addition, some studies show that several MTMs, such as MTMR1, MTMR6, MTMR7, MTMR8 and MTMR12 play an important role in promoting cell survival by regulating PtdIns5P level and PtdIns (3,4,5)P3 specific 5-phosphatase, in turn control PKB/Akt activation. Myotubularins mutation is often accompanied with some diseases. MTM1 mutation can lead to condition known as myotubular myopathy. MTMR2 and MTMR13/Sbf2 mutations lead to clinically indistinguishable forms of a neuropathy called Charcot−Marie−Tooth syndrome (types 4B1 and 4B2). MTMR2 and MTMR5/Sbf1 mutations lead to impaired spermatogenesis and azoospermia.

Reference
1. Clague, M.J. and Lorenzo, O. (2005) The myotubularin family of lipid phosphatases. Traffic, 6, 1063-1069. PMID: 16262718


There are 14 genes.  Reviewed (0 or Unreviewed (14

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Otg-0546
ENSOGAG00000013475.2
H0X962
MTM1
2
iEKPD-Otg-0547
ENSOGAG00000008065.2
H0WXM3
MTMR1
3
iEKPD-Otg-0553
ENSOGAG00000016373.2
H0XF85
MTMR10
4
iEKPD-Otg-0556
ENSOGAG00000006266.2
H0WTU5
MTMR11
5
iEKPD-Otg-0564
ENSOGAG00000014260.2
H0XAV2
MTMR12
6
iEKPD-Otg-0559
ENSOGAG00000015616.2
H0XDN8
MTMR14
7
iEKPD-Otg-0548
ENSOGAG00000005773.2
H0WST7
MTMR2
8
iEKPD-Otg-0575
ENSOGAG00000015652.2
H0XDR6
MTMR3
9
iEKPD-Otg-0598
ENSOGAG00000004925.2
H0WQY2
MTMR4
10
iEKPD-Otg-0549
ENSOGAG00000003817.2
H0WNI9
MTMR6
11
iEKPD-Otg-0552
ENSOGAG00000004225.2
H0WPG5
MTMR7
12
iEKPD-Otg-0550
ENSOGAG00000001023.2
H0WHQ0
MTMR9
13
iEKPD-Otg-0600
ENSOGAG00000016393.2
H0XFB8
SBF1
14
iEKPD-Otg-0609
ENSOGAG00000010845.2
H0X3K5
SBF2