Arabidopsis thaliana      DSP/PTEN


※ PTEN family introduction

    PTEN (phosphatase and tensin homolog deleted on chromosome ten) phosphatase is a conserved family of DUSP phosphatase, which could dephosphorylate tyrosine-, serine- and threonine-phosphorylated proteins. PTEN also acts as lipid phosphatase, which dephosphorylates D3-phosphorylated inositol phospholopids (1). PTEN negatively regulates PI3 kinase-Akt signaling pathway by converting second messenger phosphatidylinositol 3,4,5-triphosphate (PIP3) into phosphatidylinositol 4,5-bisphosphate (PIP2). This pathway plays an important role in controlling cell proliferation, growth and survival (2). In addition to its dominant inhibitory activity in the PI3 kinase-Akt pathway, PTEN also possess potential protein phosphatase activity for its sequence similarity with PTP domain and this remains more understood.

Reference
1. Patterson, K.I., Brummer, T., O'Brien, P.M. and Daly, R.J. (2009) Dual-specificity phosphatases: critical regulators with diverse cellular targets. Biochem J, 418, 475-489. PMID: 19228121
2. Wang, X. and Jiang, X. (2008) PTEN: a default gate-keeping tumor suppressor with a versatile tail. Cell Res, 18, 807-816. PMID: 18626510


There are 7 genes.  Reviewed (3 or Unreviewed (4

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Art-1197
AT5G39400
Q9FLZ5
PTEN1
2
iEKPD-Art-1201
AT3G19420
Q9LT75
PTEN2A
3
iEKPD-Art-1199
AT3G50110
Q8H106
PTEN2B
4
iEKPD-Art-g022
AT5G58160
Q9LVN1
FH13
5
iEKPD-Art-g015
AT1G31810
Q9C6S1
FH14
6
iEKPD-Art-g004
AT2G25050
Q9SK28
FH18
7
iEKPD-Art-g020
AT5G07740
Q9FLQ7
FH20