RGN_PONAB
ID RGN_PONAB Reviewed; 299 AA.
AC Q5R837;
DT 03-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT 21-DEC-2004, sequence version 1.
DT 03-AUG-2022, entry version 66.
DE RecName: Full=Regucalcin;
DE Short=RC;
DE AltName: Full=Gluconolactonase;
DE Short=GNL;
DE EC=3.1.1.17;
DE AltName: Full=Senescence marker protein 30;
DE Short=SMP-30;
GN Name=RGN; Synonyms=SMP30;
OS Pongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC Pongo.
OX NCBI_TaxID=9601;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Kidney;
RG The German cDNA consortium;
RL Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Gluconolactonase with low activity towards other sugar
CC lactones, including gulonolactone and galactonolactone. Can also
CC hydrolyze diisopropyl phosphorofluoridate and phenylacetate (in vitro).
CC Calcium-binding protein. Modulates Ca(2+) signaling, and Ca(2+)-
CC dependent cellular processes and enzyme activities (By similarity).
CC {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-glucono-1,5-lactone + H2O = D-gluconate + H(+);
CC Xref=Rhea:RHEA:10440, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16217, ChEBI:CHEBI:18391; EC=3.1.1.17;
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000250};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Evidence={ECO:0000250};
CC Name=Ca(2+); Xref=ChEBI:CHEBI:29108; Evidence={ECO:0000250};
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC Note=Binds 1 divalent metal cation per subunit. Most active with Zn(2+)
CC and Mn(2+) ions. The physiological cofactor is most likely Ca(2+) or
CC Mg(2+). {ECO:0000250};
CC -!- SUBUNIT: Monomer. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the SMP-30/CGR1 family. {ECO:0000305}.
CC -!- CAUTION: Gluconolactonase catalyzes a key step in ascorbic acid
CC (vitamin C) biosynthesis, but primates lack the last enzyme in the
CC pathway and are unable to synthesize vitamin C. {ECO:0000305}.
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DR EMBL; CR859918; CAH92073.1; -; mRNA.
DR RefSeq; NP_001127502.1; NM_001134030.2.
DR AlphaFoldDB; Q5R837; -.
DR SMR; Q5R837; -.
DR STRING; 9601.ENSPPYP00000022700; -.
DR GeneID; 100174578; -.
DR KEGG; pon:100174578; -.
DR CTD; 9104; -.
DR eggNOG; KOG4499; Eukaryota.
DR InParanoid; Q5R837; -.
DR Proteomes; UP000001595; Unplaced.
DR GO; GO:0005737; C:cytoplasm; ISS:UniProtKB.
DR GO; GO:0005634; C:nucleus; ISS:UniProtKB.
DR GO; GO:0005509; F:calcium ion binding; ISS:UniProtKB.
DR GO; GO:0030234; F:enzyme regulator activity; IEA:InterPro.
DR GO; GO:0004341; F:gluconolactonase activity; ISS:UniProtKB.
DR GO; GO:0008270; F:zinc ion binding; ISS:UniProtKB.
DR GO; GO:0006874; P:cellular calcium ion homeostasis; ISS:UniProtKB.
DR GO; GO:0032781; P:positive regulation of ATP-dependent activity; ISS:UniProtKB.
DR GO; GO:0050848; P:regulation of calcium-mediated signaling; ISS:UniProtKB.
DR Gene3D; 2.120.10.30; -; 1.
DR InterPro; IPR011042; 6-blade_b-propeller_TolB-like.
DR InterPro; IPR008367; Regucalcin.
DR InterPro; IPR013658; SGL.
DR InterPro; IPR005511; SMP-30.
DR Pfam; PF08450; SGL; 1.
DR PRINTS; PR01791; REGUCALCIN.
DR PRINTS; PR01790; SMP30FAMILY.
PE 2: Evidence at transcript level;
KW Calcium; Cytoplasm; Hydrolase; Metal-binding; Reference proteome.
FT CHAIN 1..299
FT /note="Regucalcin"
FT /id="PRO_0000250477"
FT ACT_SITE 204
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000250"
FT BINDING 18
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250"
FT BINDING 101
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 103
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 121
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 154
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250"
FT BINDING 204
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250"
FT MOD_RES 144
FT /note="N6-succinyllysine"
FT /evidence="ECO:0000250|UniProtKB:Q64374"
FT MOD_RES 244
FT /note="N6-succinyllysine"
FT /evidence="ECO:0000250|UniProtKB:Q64374"
FT MOD_RES 253
FT /note="N6-succinyllysine"
FT /evidence="ECO:0000250|UniProtKB:Q64374"
SQ SEQUENCE 299 AA; 33207 MW; 81C90E73CC1F8037 CRC64;
MSSIKIECVL PENCQCGESP VWEEASNSLL FVDIPAKKVC RWDSLTKQVQ RVTVDAPVSS
VALHRSGDYV ATIGTKFCAL NWKEQSAVVL ATVDNDKKNN RFNDGKVDPA GRYFAGTMAE
ETAPAVLERH QGALYSLFPD HHVKKYFDQV DISNGLDWSL DHKIFYYIDS LSYSVDAFDY
DLQTGQISNR RSVYKLEKEE QIPDGMCIDA EGKLWVACYN GGRVIRLDPV TGKRLHTVKL
PVDKTTSCCF GGKNYSEMYV TCARDGMDPE GLLRQPEAGG IFKITGLGVK GIAPYSYAG
