ID   PP1_MEDSV               Reviewed;         321 AA.
AC   P48488;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   03-AUG-2022, entry version 85.
DE   RecName: Full=Serine/threonine-protein phosphatase PP1;
DE            EC=3.1.3.16;
GN   Name=PP1;
OS   Medicago sativa subsp. varia (Alfalfa) (Medicago varia).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Fabales; Fabaceae; Papilionoideae; 50 kb inversion clade;
OC   NPAAA clade; Hologalegina; IRL clade; Trifolieae; Medicago.
OX   NCBI_TaxID=36902;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=7519721; DOI=10.1007/bf00283520;
RA   Pay A., Pirck M., Boerge L., Hirt H., Heberle-Bors E.;
RT   "Isolation and characterization of phosphoprotein phosphatase 1 from
RT   alfalfa.";
RL   Mol. Gen. Genet. 244:176-182(1994).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + O-phospho-L-seryl-[protein] = L-seryl-[protein] +
CC         phosphate; Xref=Rhea:RHEA:20629, Rhea:RHEA-COMP:9863, Rhea:RHEA-
CC         COMP:11604, ChEBI:CHEBI:15377, ChEBI:CHEBI:29999, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:83421; EC=3.1.3.16;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + O-phospho-L-threonyl-[protein] = L-threonyl-[protein] +
CC         phosphate; Xref=Rhea:RHEA:47004, Rhea:RHEA-COMP:11060, Rhea:RHEA-
CC         COMP:11605, ChEBI:CHEBI:15377, ChEBI:CHEBI:30013, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:61977; EC=3.1.3.16;
CC   -!- COFACTOR:
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Evidence={ECO:0000250};
CC       Note=Binds 2 manganese ions per subunit. {ECO:0000250};
CC   -!- SIMILARITY: Belongs to the PPP phosphatase family. PP-1 subfamily.
CC       {ECO:0000305}.
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DR   EMBL; X80788; CAA56766.1; -; mRNA.
DR   PIR; S46282; S46282.
DR   AlphaFoldDB; P48488; -.
DR   SMR; P48488; -.
DR   PRIDE; P48488; -.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0017018; F:myosin phosphatase activity; IEA:UniProtKB-EC.
DR   Gene3D; 3.60.21.10; -; 1.
DR   InterPro; IPR004843; Calcineurin-like_PHP_ApaH.
DR   InterPro; IPR029052; Metallo-depent_PP-like.
DR   InterPro; IPR006186; Ser/Thr-sp_prot-phosphatase.
DR   InterPro; IPR031675; STPPase_N.
DR   Pfam; PF00149; Metallophos; 1.
DR   Pfam; PF16891; STPPase_N; 1.
DR   PRINTS; PR00114; STPHPHTASE.
DR   SMART; SM00156; PP2Ac; 1.
DR   SUPFAM; SSF56300; SSF56300; 1.
DR   PROSITE; PS00125; SER_THR_PHOSPHATASE; 1.
PE   2: Evidence at transcript level;
KW   Hydrolase; Manganese; Metal-binding; Protein phosphatase.
FT   CHAIN           1..321
FT                   /note="Serine/threonine-protein phosphatase PP1"
FT                   /id="PRO_0000058807"
FT   REGION          298..321
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        122
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250"
FT   BINDING         61
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
FT   BINDING         63
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
FT   BINDING         89
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
FT   BINDING         89
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250"
FT   BINDING         121
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250"
FT   BINDING         170
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250"
FT   BINDING         245
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   321 AA;  36248 MW;  B2528E7BFCA0CA38 CRC64;
     MDDTVLDDII KKLVSAKNGR TTKQVHLTEA DIRQLCTSAK EIFLSQPNLL ELEAPIKICG
     DVHGQFSDLL RLFEYGGYPP EANYLFLGDY VDRGKQSIET ICLLLAYKIK YKENFFLLRG
     NHECASINRI YGFYDECKRR YNVRLWKTFT DCFNCLPVAA LVDEKILCMH GGLSPELKNL
     DQIRNIARPI DVPDHGLLCD LLWADPDKDL EGWGENDRGV SFTFGADKVV EFLEHHDLDL
     ICRAHQVVED GYEFFAKRKL VTVFSAPNYC GEFDNAGAMM SVDDSLTCSF QILKSSDKKG
     KVGFGNNSSR PGTPPHKGGK N