Rattus norvegicus      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 (3 or Unreviewed (11

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Ran-0553
ENSRNOG00000002516.7
Q6AXQ4
Mtm1
2
iEKPD-Ran-0559
ENSRNOG00000022929.4
Q5FVM6
Mtmr12
3
iEKPD-Ran-0597
ENSRNOG00000007120.7
Q5PQT2
Mtmr3
4
iEKPD-Ran-0564
ENSRNOG00000002697.7
A0A0G2JUZ0
Mtmr1
5
iEKPD-Ran-0573
ENSRNOG00000016090.6
G3V810
Mtmr10
6
iEKPD-Ran-0576
ENSRNOG00000021176.6
D3ZQH5
Mtmr11
7
iEKPD-Ran-0568
ENSRNOG00000007881.6
D3ZMA2
Mtmr14
8
iEKPD-Ran-0554
ENSRNOG00000005923.6
D3ZA31
Mtmr2
9
iEKPD-Ran-0601
ENSRNOG00000007496.7
D3ZW40
Mtmr4
10
iEKPD-Ran-0560
ENSRNOG00000012918.7
A0A0G2JXT6
Mtmr6
11
iEKPD-Ran-0557
ENSRNOG00000011420.7
A0A0G2K1P1
Mtmr7
12
iEKPD-Ran-0552
ENSRNOG00000011560.5
Q5XIN4
Mtmr9
13
iEKPD-Ran-0614
ENSRNOG00000008392.8
M0RAP5
Sbf1
14
iEKPD-Ran-0616
ENSRNOG00000009812.7
B5DEJ9
Sbf2