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PPR1A_HUMAN
ID   PPR1A_HUMAN             Reviewed;         171 AA.
AC   Q13522; Q6IB01; Q8TBJ2; Q8WWV2;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   18-MAY-2010, sequence version 2.
DT   03-AUG-2022, entry version 155.
DE   RecName: Full=Protein phosphatase 1 regulatory subunit 1A;
DE   AltName: Full=Protein phosphatase inhibitor 1;
DE            Short=I-1;
DE            Short=IPP-1;
GN   Name=PPP1R1A; Synonyms=IPP1;
OS   Homo sapiens (Human).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC   Homo.
OX   NCBI_TaxID=9606;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA], PROTEIN SEQUENCE OF 1-23 AND 53-61, MUTAGENESIS
RP   OF THR-35, AND VARIANT GLY-109.
RC   TISSUE=Brain;
RX   PubMed=8611507; DOI=10.1021/bi952940f;
RA   Endo S., Zhou X., Connor J., Wang B., Shenolikar S.;
RT   "Multiple structural elements define the specificity of recombinant human
RT   inhibitor-1 as a protein phosphatase-1 inhibitor.";
RL   Biochemistry 35:5220-5228(1996).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [MRNA], AND VARIANT GLY-109.
RC   TISSUE=Heart;
RA   Mishra S., Tiwari N., Sabbah H.N., Gupta R.C.;
RT   "Cloning of inhibitor-1 of protein phosphatase type 1 from human heart.";
RL   Submitted (NOV-2001) to the EMBL/GenBank/DDBJ databases.
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA], AND VARIANT GLY-109.
RA   Ebert L., Schick M., Neubert P., Schatten R., Henze S., Korn B.;
RT   "Cloning of human full open reading frames in Gateway(TM) system entry
RT   vector (pDONR201).";
RL   Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases.
RN   [4]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA], AND VARIANT GLY-109.
RC   TISSUE=Brain;
RX   PubMed=15489334; DOI=10.1101/gr.2596504;
RG   The MGC Project Team;
RT   "The status, quality, and expansion of the NIH full-length cDNA project:
RT   the Mammalian Gene Collection (MGC).";
RL   Genome Res. 14:2121-2127(2004).
RN   [5]
RP   INTERACTION WITH PPP1R15A, AND PHOSPHORYLATION AT THR-35.
RX   PubMed=11564868; DOI=10.1128/mcb.21.20.6841-6850.2001;
RA   Connor J.H., Weiser D.C., Li S., Hallenbeck J.M., Shenolikar S.;
RT   "Growth arrest and DNA damage-inducible protein GADD34 assembles a novel
RT   signaling complex containing protein phosphatase 1 and inhibitor 1.";
RL   Mol. Cell. Biol. 21:6841-6850(2001).
RN   [6]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-67, AND IDENTIFICATION BY
RP   MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   TISSUE=Liver;
RX   PubMed=24275569; DOI=10.1016/j.jprot.2013.11.014;
RA   Bian Y., Song C., Cheng K., Dong M., Wang F., Huang J., Sun D., Wang L.,
RA   Ye M., Zou H.;
RT   "An enzyme assisted RP-RPLC approach for in-depth analysis of human liver
RT   phosphoproteome.";
RL   J. Proteomics 96:253-262(2014).
CC   -!- FUNCTION: Inhibitor of protein-phosphatase 1. This protein may be
CC       important in hormonal control of glycogen metabolism. Hormones that
CC       elevate intracellular cAMP increase I-1 activity in many tissues. I-1
CC       activation may impose cAMP control over proteins that are not directly
CC       phosphorylated by PKA. Following a rise in intracellular calcium, I-1
CC       is inactivated by calcineurin (or PP2B). Does not inhibit type-2
CC       phosphatases.
CC   -!- SUBUNIT: Interacts with PPP1R15A. {ECO:0000269|PubMed:11564868}.
CC   -!- INTERACTION:
CC       Q13522; O75807: PPP1R15A; NbExp=4; IntAct=EBI-1568511, EBI-714746;
CC   -!- PTM: Phosphorylation of Thr-35 is required for activity.
CC       {ECO:0000269|PubMed:11564868}.
CC   -!- SIMILARITY: Belongs to the protein phosphatase inhibitor 1 family.
CC       {ECO:0000305}.
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DR   EMBL; U48707; AAB02402.1; -; mRNA.
DR   EMBL; AY063766; AAL48321.1; -; mRNA.
DR   EMBL; CR457003; CAG33284.1; -; mRNA.
DR   EMBL; BC022470; AAH22470.1; -; mRNA.
DR   CCDS; CCDS44912.1; -.
DR   RefSeq; NP_006732.3; NM_006741.3.
DR   AlphaFoldDB; Q13522; -.
DR   BMRB; Q13522; -.
DR   BioGRID; 111496; 16.
DR   IntAct; Q13522; 11.
DR   STRING; 9606.ENSP00000257905; -.
DR   BindingDB; Q13522; -.
DR   iPTMnet; Q13522; -.
DR   PhosphoSitePlus; Q13522; -.
DR   BioMuta; PPP1R1A; -.
DR   DMDM; 296452864; -.
DR   EPD; Q13522; -.
DR   MassIVE; Q13522; -.
DR   PaxDb; Q13522; -.
DR   PeptideAtlas; Q13522; -.
DR   PRIDE; Q13522; -.
DR   ProteomicsDB; 59517; -.
DR   Antibodypedia; 27544; 87 antibodies from 30 providers.
DR   DNASU; 5502; -.
DR   Ensembl; ENST00000257905.13; ENSP00000257905.8; ENSG00000135447.17.
DR   GeneID; 5502; -.
DR   KEGG; hsa:5502; -.
DR   UCSC; uc001sgg.3; human.
DR   CTD; 5502; -.
DR   DisGeNET; 5502; -.
DR   GeneCards; PPP1R1A; -.
DR   HGNC; HGNC:9286; PPP1R1A.
DR   HPA; ENSG00000135447; Tissue enhanced (adipose tissue, skeletal muscle, tongue).
DR   MIM; 613246; gene.
DR   neXtProt; NX_Q13522; -.
DR   PharmGKB; PA33636; -.
DR   VEuPathDB; HostDB:ENSG00000135447; -.
DR   eggNOG; ENOG502S1WG; Eukaryota.
DR   HOGENOM; CLU_092269_1_0_1; -.
DR   InParanoid; Q13522; -.
DR   OrthoDB; 1571652at2759; -.
DR   PhylomeDB; Q13522; -.
DR   TreeFam; TF332576; -.
DR   PathwayCommons; Q13522; -.
DR   SignaLink; Q13522; -.
DR   SIGNOR; Q13522; -.
DR   BioGRID-ORCS; 5502; 21 hits in 1070 CRISPR screens.
DR   GenomeRNAi; 5502; -.
DR   Pharos; Q13522; Tbio.
DR   PRO; PR:Q13522; -.
DR   Proteomes; UP000005640; Chromosome 12.
DR   RNAct; Q13522; protein.
DR   Bgee; ENSG00000135447; Expressed in triceps brachii and 179 other tissues.
DR   ExpressionAtlas; Q13522; baseline and differential.
DR   Genevisible; Q13522; HS.
DR   GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR   GO; GO:0004865; F:protein serine/threonine phosphatase inhibitor activity; TAS:ProtInc.
DR   GO; GO:0005977; P:glycogen metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0035556; P:intracellular signal transduction; IBA:GO_Central.
DR   InterPro; IPR008466; PPP1R1A/B/C.
DR   PANTHER; PTHR15417; PTHR15417; 1.
DR   Pfam; PF05395; DARPP-32; 1.
PE   1: Evidence at protein level;
KW   Acetylation; Carbohydrate metabolism; Direct protein sequencing;
KW   Glycogen metabolism; Phosphoprotein; Protein phosphatase inhibitor;
KW   Reference proteome.
FT   CHAIN           1..171
FT                   /note="Protein phosphatase 1 regulatory subunit 1A"
FT                   /id="PRO_0000071477"
FT   REGION          1..171
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          9..12
FT                   /note="Essential for activity"
FT   REGION          42..54
FT                   /note="Essential for activity"
FT                   /evidence="ECO:0000305"
FT   REGION          143..171
FT                   /note="Interaction with PPP1R15A"
FT                   /evidence="ECO:0000269|PubMed:11564868"
FT   COMPBIAS        100..115
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        138..153
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        154..171
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOD_RES         1
FT                   /note="N-acetylmethionine"
FT                   /evidence="ECO:0000250|UniProtKB:P01099"
FT   MOD_RES         35
FT                   /note="Phosphothreonine; by PKA"
FT                   /evidence="ECO:0000269|PubMed:11564868"
FT   MOD_RES         43
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:Q9ERT9"
FT   MOD_RES         46
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:Q9ERT9"
FT   MOD_RES         47
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:Q9ERT9"
FT   MOD_RES         67
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:24275569"
FT   VARIANT         109
FT                   /note="E -> G (in dbSNP:rs1249958)"
FT                   /evidence="ECO:0000269|PubMed:15489334,
FT                   ECO:0000269|PubMed:8611507, ECO:0000269|Ref.2,
FT                   ECO:0000269|Ref.3"
FT                   /id="VAR_053898"
FT   VARIANT         147
FT                   /note="G -> D (in dbSNP:rs34376731)"
FT                   /id="VAR_053899"
FT   MUTAGEN         35
FT                   /note="T->A: No activity."
FT                   /evidence="ECO:0000269|PubMed:8611507"
FT   MUTAGEN         35
FT                   /note="T->D: 1000-fold reduction in activity, inhibits
FT                   equally PP1 and PP2A."
FT                   /evidence="ECO:0000269|PubMed:8611507"
FT   CONFLICT        8
FT                   /note="R -> Q (in Ref. 4; AAH22470)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        43
FT                   /note="S -> G (in Ref. 2; AAL48321)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   171 AA;  19011 MW;  6F61FF08E4305729 CRC64;
     MEQDNSPRKI QFTVPLLEPH LDPEAAEQIR RRRPTPATLV LTSDQSSPEI DEDRIPNPHL
     KSTLAMSPRQ RKKMTRITPT MKELQMMVEH HLGQQQQGEE PEGAAESTET QESRPPGIPD
     TEVESRLGTS GTAKKTAECI PKTHERGSKE PSTKEPSTHI PPLDSKGANS V
 
 
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