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Protein

Serine/threonine-protein phosphatase 4 catalytic subunit

Gene

Ppp4c

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score: -Experimental evidence at transcript leveli

Functioni

Protein phosphatase that is involved in many processes such as microtubule organization at centrosomes, maturation of spliceosomal snRNPs, apoptosis, DNA repair, tumor necrosis factor (TNF)-alpha signaling, activation of c-Jun N-terminal kinase MAPK8, regulation of histone acetylation, DNA damage checkpoint signaling, NF-kappa-B activation and cell migration. The PPP4C-PPP4R1 PP4 complex may play a role in dephosphorylation and regulation of HDAC3. The PPP4C-PPP4R2-PPP4R3A PP4 complex specifically dephosphorylates H2AFX phosphorylated on Ser-140 (gamma-H2AFX) generated during DNA replication and required for DNA DSB repair. Dephosphorylates NDEL1 at CDK1 phosphorylation sites and negatively regulates CDK1 activity in interphase (By similarity). In response to DNA damage, catalyzes RPA2 dephosphorylation, an essential step for DNA repair since it allows the efficient RPA2-mediated recruitment of RAD51 to chromatin (By similarity).By similarity

Catalytic activityi

[a protein]-serine/threonine phosphate + H2O = [a protein]-serine/threonine + phosphate.

Cofactori

Mn2+By similarityNote: Binds 2 manganese ions per subunit.By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi54Manganese 1By similarity1
Metal bindingi56Manganese 1By similarity1
Metal bindingi82Manganese 1By similarity1
Metal bindingi82Manganese 2By similarity1
Metal bindingi114Manganese 2By similarity1
Active sitei115Proton donorBy similarity1
Metal bindingi164Manganese 2By similarity1
Metal bindingi238Manganese 2By similarity1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionHydrolase, Protein phosphatase
LigandManganese, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Serine/threonine-protein phosphatase 4 catalytic subunit (EC:3.1.3.16)
Short name:
PP4C
Short name:
Pp4
Gene namesi
Name:Ppp4c
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
Proteomesi
  • UP000002494 Componenti: Unplaced

Organism-specific databases

RGDi621225 Ppp4c

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm, Cytoskeleton, Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedBy similarity
ChainiPRO_00002918792 – 307Serine/threonine-protein phosphatase 4 catalytic subunitAdd BLAST306

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei2N-acetylalanineBy similarity1
Modified residuei307Leucine methyl esterBy similarity1

Post-translational modificationi

Methylation at the C-terminal Leu-307 is critical for interactions with regulatory subunits and functions in DNA repair.By similarity

Keywords - PTMi

Acetylation, Methylation

Proteomic databases

PaxDbiQ5BJ92
PRIDEiQ5BJ92

Interactioni

Subunit structurei

Serine/threonine-protein phosphatase 4 (PP4) occurs in different assemblies of the catalytic and one or more regulatory subunits. Component of the PP4 complexes PPP4C-PPP4R1, PPP4C-PPP4R2, PPP4C-PPP4R2-PPP4R3A, PPP4C-PPP4R2-PPP4R3B and PPP4C-PPP4R4. The PPP4C-PPP4R2 complex appears to be a tetramer composed of 2 molecules of PPP4C and 2 molecules of PPP4R2. Interacts with REL, NFKB1/p50 and RELA. Interacts with SMN1 AND GEMIN4. Interacts with IRS4 (phosphorylated). Interacts with SMEK1/PPP4R3A; the interaction requires PP4R2. Interacts with HDAC3 (By similarity).By similarity

GO - Molecular functioni

Protein-protein interaction databases

STRINGi10116.ENSRNOP00000026909

Structurei

3D structure databases

ProteinModelPortaliQ5BJ92
SMRiQ5BJ92
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Phylogenomic databases

eggNOGiKOG0372 Eukaryota
COG0639 LUCA
HOGENOMiHOG000172696
HOVERGENiHBG000216
InParanoidiQ5BJ92
KOiK15423
PhylomeDBiQ5BJ92

Family and domain databases

Gene3Di3.60.21.10, 1 hit
InterProiView protein in InterPro
IPR004843 Calcineurin-like_PHP_ApaH
IPR029052 Metallo-depent_PP-like
IPR006186 Ser/Thr-sp_prot-phosphatase
PfamiView protein in Pfam
PF00149 Metallophos, 1 hit
PRINTSiPR00114 STPHPHTASE
SMARTiView protein in SMART
SM00156 PP2Ac, 1 hit
PROSITEiView protein in PROSITE
PS00125 SER_THR_PHOSPHATASE, 1 hit

Sequence (1+)i

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

This entry has 1 described isoform and 1 potential isoform that is computationally mapped.iShow all

Q5BJ92-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAEISDLDRQ IEQLRRCELI KESEVKALCA KAREILVEES NVQRVDSPVT
60 70 80 90 100
VCGDIHGQFY DLKELFRVGG DVPETNYLFM GDFVDRGFYS VETFLLLLAL
110 120 130 140 150
KVRYPDRITL IRGNHESRQI TQVYGFYDEC LRKYGSVTVW RYCTEIFDYL
160 170 180 190 200
SLSAIIDGKI FCVHGGLSPS IQTLDQIRTI DRKQEVPHDG PMCDLLWSDP
210 220 230 240 250
EDTTGWGVSP RGAGYLFGSD VVAQFNAAND IDMTCRAHQL VMEGYKWHFN
260 270 280 290 300
ETVLTVWSAP NYCYRCGNVA AILELDEHLQ KDFIIFEAAP QETRGIPSKK

PVADYFL
Length:307
Mass (Da):35,068
Last modified:April 12, 2005 - v1
Checksum:iD6E47423465F95AC
GO

Computationally mapped potential isoform sequencesi

There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
G3V8M5G3V8M5_RAT
Serine/threonine-protein phosphatas...
Ppp4c rCG_39762
307Annotation score:

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC091574 mRNA Translation: AAH91574.1
RefSeqiNP_599186.1, NM_134359.1
UniGeneiRn.9173

Genome annotation databases

GeneIDi171366
KEGGirno:171366
UCSCiRGD:621225 rat

Similar proteinsi

Entry informationi

Entry nameiPP4C_RAT
AccessioniPrimary (citable) accession number: Q5BJ92
Entry historyiIntegrated into UniProtKB/Swiss-Prot: June 26, 2007
Last sequence update: April 12, 2005
Last modified: May 23, 2018
This is version 85 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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