UniProtKB - Q501J7 (PHAR4_MOUSE)
Phosphatase and actin regulator 4
Phactr4
Functioni
Regulator of protein phosphatase 1 (PP1) required for neural tube and optic fissure closure, and enteric neural crest cell (ENCCs) migration during development. Acts as an activator of PP1 by interacting with PPP1CA and preventing phosphorylation of PPP1CA at 'Thr-320'. During neural tube closure, localizes to the ventral neural tube and activates PP1, leading to down-regulate cell proliferation within cranial neural tissue and the neural retina. Also acts as a regulator of migration of enteric neural crest cells (ENCCs) by activating PP1, leading to dephosphorylation and subsequent activation of cofilin (COF1 or COF2) and repression of the integrin signaling through the RHO/ROCK pathway.
2 PublicationsGO - Molecular functioni
- actin binding Source: UniProtKB
- protein phosphatase 1 binding Source: UniProtKB
- protein phosphatase activator activity Source: UniProtKB
- protein phosphatase inhibitor activity Source: UniProtKB-KW
GO - Biological processi
- actin cytoskeleton organization Source: UniProtKB
- closure of optic fissure Source: UniProtKB
- enteric nervous system development Source: UniProtKB
- negative regulation of integrin-mediated signaling pathway Source: UniProtKB
- neural crest cell migration Source: UniProtKB
- neural tube closure Source: UniProtKB
- positive regulation of catalytic activity Source: UniProtKB
- regulation of cell cycle Source: UniProtKB
- Rho protein signal transduction Source: UniProtKB
Keywordsi
Molecular function | Actin-binding, Developmental protein, Protein phosphatase inhibitor |
Biological process | Neurogenesis |
Names & Taxonomyi
Protein namesi | Recommended name: Phosphatase and actin regulator 4Alternative name(s): Protein Humpty dumpty Short name: Humdy |
Gene namesi | Name:Phactr4 Synonyms:Kiaa4120 |
Organismi | Mus musculus (Mouse) |
Taxonomic identifieri | 10090 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Mus › Mus |
Proteomesi |
|
Organism-specific databases
MGIi | MGI:2140327, Phactr4 |
VEuPathDBi | HostDB:ENSMUSG00000066043 |
Subcellular locationi
Cytoplasm and Cytosol
Other locations
Other locations
- cytoplasm Source: UniProtKB-SubCell
- lamellipodium Source: UniProtKB
Keywords - Cellular componenti
Cell projection, CytoplasmPathology & Biotechi
Disruption phenotypei
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 650 | R → P in humdy; failure to close the neural tube and optic fissure, causing exencephaly and retinal coloboma and common birth defects. Specifically disrupts interaction with PPP1CA while it does not affect interaction with actin. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000287307 | 1 – 694 | Phosphatase and actin regulator 4Add BLAST | 694 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 116 | PhosphoserineCombined sources | 1 | |
Modified residuei | 118 | PhosphoserineCombined sources | 1 | |
Modified residuei | 129 | PhosphoserineBy similarity | 1 | |
Modified residuei | 145 | PhosphoserineBy similarity | 1 | |
Modified residuei | 264 | PhosphoserineCombined sources | 1 | |
Modified residuei | 285 | PhosphoserineCombined sources | 1 | |
Modified residuei | 335 | PhosphoserineBy similarity | 1 | |
Modified residuei | 337 | PhosphoserineBy similarity | 1 | |
Modified residuei | 420 | PhosphoserineCombined sources | 1 | |
Modified residuei | 425 | PhosphothreonineCombined sources | 1 | |
Modified residuei | 436 | PhosphoserineCombined sources | 1 | |
Modified residuei | 446 | PhosphoserineCombined sources | 1 | |
Modified residuei | 457 | PhosphoserineCombined sources | 1 | |
Modified residuei | 503 | PhosphoserineCombined sources | 1 | |
Modified residuei | 505 | PhosphoserineCombined sources | 1 | |
Modified residuei | 549 | PhosphoserineBy similarity | 1 | |
Modified residuei | 582 | PhosphoserineBy similarity | 1 | |
Modified residuei | 620 | PhosphoserineBy similarity | 1 |
Keywords - PTMi
PhosphoproteinProteomic databases
EPDi | Q501J7 |
jPOSTi | Q501J7 |
MaxQBi | Q501J7 |
PaxDbi | Q501J7 |
PeptideAtlasi | Q501J7 |
PRIDEi | Q501J7 |
ProteomicsDBi | 288137 [Q501J7-1] 288138 [Q501J7-2] 288139 [Q501J7-3] |
PTM databases
iPTMneti | Q501J7 |
PhosphoSitePlusi | Q501J7 |
Expressioni
Developmental stagei
Gene expression databases
Bgeei | ENSMUSG00000066043, Expressed in adult mammalian kidney and 244 other tissues |
ExpressionAtlasi | Q501J7, baseline and differential |
Genevisiblei | Q501J7, MM |
Interactioni
Subunit structurei
Binds PPP1CA and actin.
GO - Molecular functioni
- actin binding Source: UniProtKB
- protein phosphatase 1 binding Source: UniProtKB
Protein-protein interaction databases
BioGRIDi | 221393, 4 interactors |
STRINGi | 10090.ENSMUSP00000099628 |
Miscellaneous databases
RNActi | Q501J7, protein |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Repeati | 63 – 88 | RPEL 1Add BLAST | 26 | |
Repeati | 575 – 600 | RPEL 2Add BLAST | 26 | |
Repeati | 613 – 638 | RPEL 3Add BLAST | 26 |
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 1 – 354 | DisorderedSequence analysisAdd BLAST | 354 | |
Regioni | 375 – 405 | DisorderedSequence analysisAdd BLAST | 31 | |
Regioni | 467 – 562 | DisorderedSequence analysisAdd BLAST | 96 | |
Regioni | 589 – 608 | DisorderedSequence analysisAdd BLAST | 20 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 53 – 100 | Basic and acidic residuesSequence analysisAdd BLAST | 48 | |
Compositional biasi | 121 – 143 | Basic and acidic residuesSequence analysisAdd BLAST | 23 | |
Compositional biasi | 186 – 216 | Polar residuesSequence analysisAdd BLAST | 31 | |
Compositional biasi | 265 – 282 | Polar residuesSequence analysisAdd BLAST | 18 | |
Compositional biasi | 300 – 319 | Polar residuesSequence analysisAdd BLAST | 20 | |
Compositional biasi | 329 – 353 | Pro residuesSequence analysisAdd BLAST | 25 | |
Compositional biasi | 495 – 512 | Basic and acidic residuesSequence analysisAdd BLAST | 18 | |
Compositional biasi | 526 – 543 | Basic and acidic residuesSequence analysisAdd BLAST | 18 | |
Compositional biasi | 594 – 608 | Basic and acidic residuesSequence analysisAdd BLAST | 15 |
Sequence similaritiesi
Keywords - Domaini
RepeatPhylogenomic databases
eggNOGi | KOG4339, Eukaryota |
GeneTreei | ENSGT00940000157582 |
HOGENOMi | CLU_015753_1_1_1 |
InParanoidi | Q501J7 |
OMAi | XKNEADR |
OrthoDBi | 1205245at2759 |
PhylomeDBi | Q501J7 |
TreeFami | TF316316 |
Family and domain databases
InterProi | View protein in InterPro IPR029984, Phactr4 IPR004018, RPEL_repeat |
PANTHERi | PTHR12751:SF4, PTHR12751:SF4, 1 hit |
Pfami | View protein in Pfam PF02755, RPEL, 3 hits |
SMARTi | View protein in SMART SM00707, RPEL, 3 hits |
PROSITEi | View protein in PROSITE PS51073, RPEL, 3 hits |
s (3+)i Sequence
Sequence statusi: Complete.
This entry describes 3 produced by isoformsialternative splicing. AlignAdd to basketThis entry has 3 described isoforms and 2 potential isoforms that are computationally mapped.Show allAlign All
This isoform has been chosen as the sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. canonicali
10 20 30 40 50
MEDPSEEAEQ PSGDPGMGMD SVEAGDTTPP TKRKSKFSAL GKIFKPWKWR
60 70 80 90 100
KKKSSDKFKE TSEVLERKIS MRKPREELVK RGVLLEDPEQ DGEDSGKLSH
110 120 130 140 150
AALKNGHTTP IGSARSSSPV LVEEEPERSL RNLTPEEESK KRLGSTGSQP
160 170 180 190 200
NSEAEPGPEH APKQPLLPPK RPLSSSCEAK EVPAGSTARS VSSTSGSTTV
210 220 230 240 250
TSAATTAATD MTKTVKSFVG PTPAPAPAPR TLPAAPASAN TAATTTAPAK
260 270 280 290 300
QPPIPPPKPA QRNSNPIIAE LSQAMNSGTV LSKPSPPLPP KRGIPSTSIP
310 320 330 340 350
SLEPAASFTT KTANDQREKT VSLCLEPPLI IPPSSPSPPL PTHIPPEPPR
360 370 380 390 400
SPLVPAKTFQ IVPEVEFSSS SDLFQDISQQ EDQKTEVPKK IQDQSFGESH
410 420 430 440 450
IPSRLPPLPL HIRIQQALTS PLPVTPPLEG THRAHSLLFE NSDSFSEDTG
460 470 480 490 500
TLGRTRSLPI TIEMLKVPDD EEEEQTCPFV EDVTSTSATP SLPLCLREEE
510 520 530 540 550
KESDSDSEGP IKYRDEEEDD DDDESHQSAL ANRVKRKDTL AMKLSSRPSE
560 570 580 590 600
PETNLNSWPR KSKEEWNEIR HQIGNTLIRR LSQRPTAEEL EQRNILQPKN
610 620 630 640 650
EADRQAEKRE IKRRLTRKLS QRPTVAELLA RKILRFNEYV EVTDAHDYDR
660 670 680 690
RADKPWTKLT PADKAAIRKE LNEFKSSEME VHVDSKHFTR YHRP
Computationally mapped potential isoform sequencesi
There are 2 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basketA0A0A0MQJ4 | A0A0A0MQJ4_MOUSE | Phosphatase and actin regulator 4 | Phactr4 | 298 | Annotation score: | ||
A0A0A0MQL5 | A0A0A0MQL5_MOUSE | Phosphatase and actin regulator 4 | Phactr4 | 157 | Annotation score: |
Sequence cautioni
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 212 | T → K in BAC33611 (PubMed:16141072).Curated | 1 | |
Sequence conflicti | 224 | A → S in AAH96033 (PubMed:19468303).Curated | 1 |
Alternative sequence
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Alternative sequenceiVSP_025439 | 1 – 5 | MEDPS → MGQADVSRPVNPDAV in isoform 3. Curated | 5 | |
Alternative sequenceiVSP_025440 | 64 – 90 | Missing in isoform 2. 1 PublicationAdd BLAST | 27 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AK049209 mRNA Translation: BAC33611.1 AK220496 mRNA Translation: BAD90294.1 Different initiation. AL805897 Genomic DNA Translation: CAM26521.1 AL805897 Genomic DNA Translation: CAM26523.1 AL805897 Genomic DNA Translation: CAM26520.1 Sequence problems. BC075672 mRNA Translation: AAH75672.1 BC096033 mRNA Translation: AAH96033.1 |
CCDSi | CCDS18724.1 [Q501J7-1] CCDS51318.1 [Q501J7-2] |
RefSeqi | NP_001155269.1, NM_001161797.1 [Q501J7-2] NP_780515.2, NM_175306.4 [Q501J7-1] XP_006538519.1, XM_006538456.3 [Q501J7-3] |
Genome annotation databases
Ensembli | ENSMUST00000084170; ENSMUSP00000081185; ENSMUSG00000066043 [Q501J7-2] ENSMUST00000084249; ENSMUSP00000081270; ENSMUSG00000066043 [Q501J7-3] ENSMUST00000102568; ENSMUSP00000099628; ENSMUSG00000066043 [Q501J7-1] |
GeneIDi | 100169 |
KEGGi | mmu:100169 |
UCSCi | uc008vbg.3, mouse [Q501J7-1] uc008vbh.3, mouse [Q501J7-2] |
Keywords - Coding sequence diversityi
Alternative splicingSimilar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AK049209 mRNA Translation: BAC33611.1 AK220496 mRNA Translation: BAD90294.1 Different initiation. AL805897 Genomic DNA Translation: CAM26521.1 AL805897 Genomic DNA Translation: CAM26523.1 AL805897 Genomic DNA Translation: CAM26520.1 Sequence problems. BC075672 mRNA Translation: AAH75672.1 BC096033 mRNA Translation: AAH96033.1 |
CCDSi | CCDS18724.1 [Q501J7-1] CCDS51318.1 [Q501J7-2] |
RefSeqi | NP_001155269.1, NM_001161797.1 [Q501J7-2] NP_780515.2, NM_175306.4 [Q501J7-1] XP_006538519.1, XM_006538456.3 [Q501J7-3] |
3D structure databases
SMRi | Q501J7 |
ModBasei | Search... |
Protein-protein interaction databases
BioGRIDi | 221393, 4 interactors |
STRINGi | 10090.ENSMUSP00000099628 |
PTM databases
iPTMneti | Q501J7 |
PhosphoSitePlusi | Q501J7 |
Proteomic databases
EPDi | Q501J7 |
jPOSTi | Q501J7 |
MaxQBi | Q501J7 |
PaxDbi | Q501J7 |
PeptideAtlasi | Q501J7 |
PRIDEi | Q501J7 |
ProteomicsDBi | 288137 [Q501J7-1] 288138 [Q501J7-2] 288139 [Q501J7-3] |
Protocols and materials databases
Antibodypediai | 30935, 124 antibodies from 27 providers |
Genome annotation databases
Ensembli | ENSMUST00000084170; ENSMUSP00000081185; ENSMUSG00000066043 [Q501J7-2] ENSMUST00000084249; ENSMUSP00000081270; ENSMUSG00000066043 [Q501J7-3] ENSMUST00000102568; ENSMUSP00000099628; ENSMUSG00000066043 [Q501J7-1] |
GeneIDi | 100169 |
KEGGi | mmu:100169 |
UCSCi | uc008vbg.3, mouse [Q501J7-1] uc008vbh.3, mouse [Q501J7-2] |
Organism-specific databases
CTDi | 65979 |
MGIi | MGI:2140327, Phactr4 |
VEuPathDBi | HostDB:ENSMUSG00000066043 |
Rougei | Search... |
Phylogenomic databases
eggNOGi | KOG4339, Eukaryota |
GeneTreei | ENSGT00940000157582 |
HOGENOMi | CLU_015753_1_1_1 |
InParanoidi | Q501J7 |
OMAi | XKNEADR |
OrthoDBi | 1205245at2759 |
PhylomeDBi | Q501J7 |
TreeFami | TF316316 |
Miscellaneous databases
BioGRID-ORCSi | 100169, 0 hits in 64 CRISPR screens |
ChiTaRSi | Phactr4, mouse |
PROi | PR:Q501J7 |
RNActi | Q501J7, protein |
SOURCEi | Search... |
Gene expression databases
Bgeei | ENSMUSG00000066043, Expressed in adult mammalian kidney and 244 other tissues |
ExpressionAtlasi | Q501J7, baseline and differential |
Genevisiblei | Q501J7, MM |
Family and domain databases
InterProi | View protein in InterPro IPR029984, Phactr4 IPR004018, RPEL_repeat |
PANTHERi | PTHR12751:SF4, PTHR12751:SF4, 1 hit |
Pfami | View protein in Pfam PF02755, RPEL, 3 hits |
SMARTi | View protein in SMART SM00707, RPEL, 3 hits |
PROSITEi | View protein in PROSITE PS51073, RPEL, 3 hits |
MobiDBi | Search... |
Entry informationi
Entry namei | PHAR4_MOUSE | |
Accessioni | Q501J7Primary (citable) accession number: Q501J7 Secondary accession number(s): A2ALF7 Q8C7U9 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | May 15, 2007 |
Last sequence update: | May 15, 2007 | |
Last modified: | February 23, 2022 | |
This is version 107 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- MGD cross-references
Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot - SIMILARITY comments
Index of protein domains and families