Xenopus tropicalis      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 16 genes.  Reviewed (1 or Unreviewed (15

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Xet-0706
ENSXETG00000017786.3
Q5EB32
mtm1
2
iEKPD-Xet-0731
ENSXETG00000025610.2
F6XJ43
asb12.2
3
iEKPD-Xet-0708
ENSXETG00000005248.3
F6VED7
LOC100216114
4
iEKPD-Xet-0707
ENSXETG00000007741.3
F7D908
mtmr1
5
iEKPD-Xet-0711
ENSXETG00000016494.3
F7DWH1
mtmr10
6
iEKPD-Xet-0721
ENSXETG00000011034.3
F7BG51
mtmr11
7
iEKPD-Xet-0725
ENSXETG00000015585.3
F6YGK1
mtmr12
8
iEKPD-Xet-0716
ENSXETG00000017860.3
F6WB37
mtmr14
9
iEKPD-Xet-0705
ENSXETG00000007082.3
F7C5D5
mtmr2
10
iEKPD-Xet-0739
ENSXETG00000016428.3
F7CJX7
mtmr3
11
iEKPD-Xet-0741
ENSXETG00000007790.3
L7N310
mtmr4
12
iEKPD-Xet-0714
ENSXETG00000010682.3
F6ZST8
mtmr6
13
iEKPD-Xet-0712
ENSXETG00000000690.2
F7E7P8
mtmr7
14
iEKPD-Xet-0713
ENSXETG00000000685.3
A4IHQ8
mtmr9
15
iEKPD-Xet-0762
ENSXETG00000023079.3
F6Z409
sbf1
16
iEKPD-Xet-0764
ENSXETG00000009226.3
F7DUZ9
sbf2