PTPA report

I. Expression across cell types

II. Expression across tissues

III. Associated gene sets

GO_0032515Biological processnegative regulation of phosphoprotein phosphatase activity
GO_0007052Biological processmitotic spindle organization
GO_0032516Biological processpositive regulation of phosphoprotein phosphatase activity
GO_0043065Biological processpositive regulation of apoptotic process
GO_0035308Biological processnegative regulation of protein dephosphorylation
GO_0035307Biological processpositive regulation of protein dephosphorylation
GO_0043666Biological processregulation of phosphoprotein phosphatase activity
GO_0070062Cellular componentextracellular exosome
GO_0005634Cellular componentnucleus
GO_0005654Cellular componentnucleoplasm
GO_0034704Cellular componentcalcium channel complex
GO_0005737Cellular componentcytoplasm
GO_1904949Cellular componentATPase complex
GO_0000159Cellular componentprotein phosphatase type 2A complex
GO_0042803Molecular functionprotein homodimerization activity
GO_0051721Molecular functionprotein phosphatase 2A binding
GO_0004721Molecular functionphosphoprotein phosphatase activity
GO_0003755Molecular functionpeptidyl-prolyl cis-trans isomerase activity
GO_0005102Molecular functionsignaling receptor binding
GO_0008160Molecular functionprotein tyrosine phosphatase activator activity
GO_0046872Molecular functionmetal ion binding
GO_0005524Molecular functionATP binding
GO_0019888Molecular functionprotein phosphatase regulator activity
GO_0005515Molecular functionprotein binding

IV. Literature review

[source]
Gene namePTPA
Protein nameSerine/threonine-protein phosphatase 2A activator (EC 5.2.1.8) (Phosphotyrosyl phosphatase activator)
Serine/threonine-protein phosphatase 2A activator (EC 5.2.1.8) (PP2A, subunit B', PR53 isoform) (Phosphotyrosyl phosphatase activator) (PTPA) (Serine/threonine-protein phosphatase 2A regulatory subunit 4) (Serine/threonine-protein phosphatase 2A regulatory subunit B')
SynonymshCG_30599
PPP2R4
DKFZp781M17165
DescriptionFUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. Acts as a regulatory subunit for serine/threonine-protein phosphatase 2A (PP2A) modulating its activity or substrate specificity, probably by inducing a conformational change in the catalytic subunit, a proposed direct target of the PPIase. Can reactivate inactive phosphatase PP2A-phosphatase methylesterase complexes (PP2A(i)) in presence of ATP and Mg(2+) (By similarity). Reversibly stimulates the variable phosphotyrosyl phosphatase activity of PP2A core heterodimer PP2A(D) in presence of ATP and Mg(2+) (in vitro). The phosphotyrosyl phosphatase activity is dependent of an ATPase activity of the PP2A(D):PPP2R4 complex. Is involved in apoptosis; the function appears to be independent from PP2A. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

FUNCTION: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. .

AccessionsQ68CR8
ENST00000414510.5
ENST00000411917.1
A6PVN6
ENST00000435132.5
ENST00000434095.2
B4DDQ6
ENST00000455240.1
H0Y6E5
B7ZBP7
ENST00000435305.1
F6WIT2
B7ZBP9
ENST00000432651.5
ENST00000423100.5
ENST00000432124.5
ENST00000436883.5
C9IZ76
ENST00000357197.8 [Q15257-3]
A6PVN5
ENST00000337738.6 [Q15257-1]
A0A804CD06
ENST00000419582.5
ENST00000393370.7 [Q15257-2]
ENST00000452489.6
A6PVN7
H0Y562
Q5T949
ENST00000440346.1
ENST00000355007.7 [Q15257-4]
ENST00000347048.8
ENST00000414331.5
ENST00000348141.9
ENST00000455292.6
A6PVN8
ENST00000453358.5
ENST00000417504.5
Q15257
ENST00000358994.9
B7ZBQ0