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Protein

Serine/threonine-protein phosphatase 4 regulatory subunit 1

Gene

PPP4R1

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Regulatory subunit of serine/threonine-protein phosphatase 4. May play a role in regulation of cell division in renal glomeruli. The PPP4C-PPP4R1 PP4 complex may play a role in dephosphorylation and regulation of HDAC3.1 Publication

GO - Molecular functioni

  • protein phosphatase regulator activity Source: UniProtKB

GO - Biological processi

  • protein dephosphorylation Source: GOC
  • protein phosphorylation Source: UniProtKB
  • signal transduction Source: UniProtKB

Names & Taxonomyi

Protein namesi
Recommended name:
Serine/threonine-protein phosphatase 4 regulatory subunit 1
Gene namesi
Name:PPP4R1
Synonyms:MEG1, PP4R1
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome 18

Organism-specific databases

EuPathDBiHostDB:ENSG00000154845.15.
HGNCiHGNC:9320. PPP4R1.

Subcellular locationi

Pathology & Biotechi

Organism-specific databases

DisGeNETi9989.
OpenTargetsiENSG00000154845.
PharmGKBiPA33684.

Polymorphism and mutation databases

BioMutaiPPP4R1.
DMDMi44888283.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000715271 – 950Serine/threonine-protein phosphatase 4 regulatory subunit 1Add BLAST950

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei935PhosphoserineCombined sources1

Keywords - PTMi

Phosphoprotein

Proteomic databases

EPDiQ8TF05.
MaxQBiQ8TF05.
PaxDbiQ8TF05.
PeptideAtlasiQ8TF05.
PRIDEiQ8TF05.

PTM databases

iPTMnetiQ8TF05.
PhosphoSitePlusiQ8TF05.

Expressioni

Tissue specificityi

Widely expressed with high expression in cultured mesangial cells. Isoform 1 and isoform 2 are expressed in renal tissues.1 Publication

Gene expression databases

BgeeiENSG00000154845.
CleanExiHS_PPP4R1.
ExpressionAtlasiQ8TF05. baseline and differential.
GenevisibleiQ8TF05. HS.

Organism-specific databases

HPAiHPA040905.
HPA041089.

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 complex PPP4C-PPP4R1. Interacts with HDAC3.4 Publications

Binary interactionsi

WithEntry#Exp.IntActNotes
PPP4CP605107EBI-1056262,EBI-1046072

Protein-protein interaction databases

BioGridi115310. 36 interactors.
IntActiQ8TF05. 20 interactors.
MINTiMINT-8215714.
STRINGi9606.ENSP00000383402.

Structurei

3D structure databases

ProteinModelPortaliQ8TF05.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Repeati1 – 25HEAT 1Add BLAST25
Repeati26 – 63HEAT 2Add BLAST38
Repeati65 – 81HEAT 3Add BLAST17
Repeati82 – 119HEAT 4Add BLAST38
Repeati127 – 164HEAT 5Add BLAST38
Repeati168 – 206HEAT 6Add BLAST39
Repeati208 – 246HEAT 7Add BLAST39
Repeati248 – 285HEAT 8Add BLAST38
Repeati287 – 324HEAT 9Add BLAST38
Repeati505 – 542HEAT 10Add BLAST38
Repeati568 – 606HEAT 11Add BLAST39
Repeati698 – 734HEAT 12Add BLAST37
Repeati799 – 837HEAT 13Add BLAST39
Repeati861 – 898HEAT 14Add BLAST38

Keywords - Domaini

Repeat

Phylogenomic databases

eggNOGiENOG410IUDJ. Eukaryota.
ENOG410XQII. LUCA.
GeneTreeiENSGT00730000110899.
HOGENOMiHOG000115650.
HOVERGENiHBG053649.
InParanoidiQ8TF05.
KOiK15424.
OMAiKVCPVLI.
OrthoDBiEOG091G01JA.
PhylomeDBiQ8TF05.
TreeFamiTF105560.

Family and domain databases

Gene3Di1.25.10.10. 2 hits.
InterProiView protein in InterPro
IPR011989. ARM-like.
IPR016024. ARM-type_fold.
IPR000357. HEAT.
IPR021133. HEAT_type_2.
IPR031087. PP4R1.
IPR033461. WRNPLPNID.
PANTHERiPTHR10648:SF8. PTHR10648:SF8. 1 hit.
PfamiView protein in Pfam
PF02985. HEAT. 2 hits.
PF15017. WRNPLPNID. 1 hit.
SUPFAMiSSF48371. SSF48371. 2 hits.
PROSITEiView protein in PROSITE
PS50077. HEAT_REPEAT. 2 hits.

Sequences (2)i

Sequence statusi: Complete.

This entry describes 2 isoformsi produced by alternative splicing. AlignAdd to basket

Isoform 1 (identifier: Q8TF05-1) [UniParc]FASTAAdd to basket
Also known as: PP4Rmeg

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

        10         20         30         40         50
MADLSLLQED LQEDADGFGV DDYSSESDVI IIPSALDFVS QDEMLTPLGR
60 70 80 90 100
LDKYAASENI FNRQMVARSL LDTLREVCDD ERDCIAVLER ISRLADDSEP
110 120 130 140 150
TVRAELMEQV PHIALFCQEN RPSIPYAFSK FLLPIVVRYL ADQNNQVRKT
160 170 180 190 200
SQAALLALLE QELIERFDVE TKVCPVLIEL TAPDSNDDVK TEAVAIMCKM
210 220 230 240 250
APMVGKDITE RLILPRFCEM CCDCRMFHVR KVCAANFGDI CSVVGQQATE
260 270 280 290 300
EMLLPRFFQL CSDNVWGVRK ACAECFMAVS CATCQEIRRT KLSALFINLI
310 320 330 340 350
SDPSRWVRQA AFQSLGPFIS TFANPSSSGQ YFKEESKSSE EMSVENKNRT
360 370 380 390 400
RDQEAPEDVQ VRPEDTPSDL SVSNSSVILE NTMEDHAAEA SGKPLGEISV
410 420 430 440 450
PLDSSLLCTL SSESHQEAAS NENDKKPGNY KSMLRPEVGT TSQDSALLDQ
460 470 480 490 500
ELYNSFHFWR TPLPEIDLDI ELEQNSGGKP SPEGPEEESE GPVPSSPNIT
510 520 530 540 550
MATRKELEEM IENLEPHIDD PDVKAQVEVL SAALRASSLD AHEETISIEK
560 570 580 590 600
RSDLQDELDI NELPNCKINQ EDSVPLISDA VENMDSTLHY IHSDSDLSNN
610 620 630 640 650
SSFSPDEERR TKVQDVVPQA LLDQYLSMTD PSRAQTVDTE IAKHCAYSLP
660 670 680 690 700
GVALTLGRQN WHCLRETYET LASDMQWKVR RTLAFSIHEL AVILGDQLTA
710 720 730 740 750
ADLVPIFNGF LKDLDEVRIG VLKHLHDFLK LLHIDKRREY LYQLQEFLVT
760 770 780 790 800
DNSRNWRFRA ELAEQLILLL ELYSPRDVYD YLRPIALNLC ADKVSSVRWI
810 820 830 840 850
SYKLVSEMVK KLHAATPPTF GVDLINELVE NFGRCPKWSG RQAFVFVCQT
860 870 880 890 900
VIEDDCLPMD QFAVHLMPHL LTLANDRVPN VRVLLAKTLR QTLLEKDYFL
910 920 930 940 950
ASASCHQEAV EQTIMALQMD RDSDVKYFAS IHPASTKISE DAMSTASSTY
Length:950
Mass (Da):107,004
Last modified:June 1, 2002 - v1
Checksum:iE1392E6BAD3B58CB
GO
Isoform 2 (identifier: Q8TF05-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     18-35: FGVDDYSSESDVIIIPSA → S

Show »
Length:933
Mass (Da):105,195
Checksum:i3AD23605BB2A371A
GO

Sequence cautioni

Q8TF05: The sequence AAD43008 differs from that shown. Reason: Erroneous initiation.Curated

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_01780743E → K. Corresponds to variant dbSNP:rs1056191Ensembl.1
Natural variantiVAR_017808470I → V. Corresponds to variant dbSNP:rs329003Ensembl.1
Natural variantiVAR_051748593S → N. Corresponds to variant dbSNP:rs2306134Ensembl.1
Natural variantiVAR_017809595S → N. Corresponds to variant dbSNP:rs2306134Ensembl.1

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Alternative sequenceiVSP_00946918 – 35FGVDD…IIPSA → S in isoform 2. 2 PublicationsAdd BLAST18

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF111106 mRNA. Translation: AAD09818.1.
AF200478 mRNA. Translation: AAL78298.1.
AP000902 Genomic DNA. No translation available.
AP001381 Genomic DNA. No translation available.
BC060829 mRNA. Translation: AAH60829.1.
AF100744 mRNA. Translation: AAD43008.1. Different initiation.
U79267 mRNA. Translation: AAB50211.1.
CCDSiCCDS42412.1. [Q8TF05-1]
CCDS42413.1. [Q8TF05-2]
RefSeqiNP_001035847.1. NM_001042388.2. [Q8TF05-1]
NP_005125.1. NM_005134.3. [Q8TF05-2]
UniGeneiHs.743236.

Genome annotation databases

EnsembliENST00000400555; ENSP00000383401; ENSG00000154845. [Q8TF05-2]
ENST00000400556; ENSP00000383402; ENSG00000154845. [Q8TF05-1]
GeneIDi9989.
KEGGihsa:9989.
UCSCiuc002kod.3. human. [Q8TF05-1]

Keywords - Coding sequence diversityi

Alternative splicing, Polymorphism

Similar proteinsi

Entry informationi

Entry nameiPP4R1_HUMAN
AccessioniPrimary (citable) accession number: Q8TF05
Secondary accession number(s): Q99774, Q9UNQ7
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 1, 2004
Last sequence update: June 1, 2002
Last modified: October 25, 2017
This is version 141 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Human chromosome 18
    Human chromosome 18: entries, gene names and cross-references to MIM
  2. Human entries with polymorphisms or disease mutations
    List of human entries with polymorphisms or disease mutations
  3. Human polymorphisms and disease mutations
    Index of human polymorphisms and disease mutations
  4. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot