ID B1X447_PAUCH Unreviewed; 222 AA.
AC B1X447;
DT 20-MAY-2008, integrated into UniProtKB/TrEMBL.
DT 20-MAY-2008, sequence version 1.
DT 24-JAN-2024, entry version 64.
DE RecName: Full=Ribulose-phosphate 3-epimerase {ECO:0000256|ARBA:ARBA00013188, ECO:0000256|PIRNR:PIRNR001461};
DE EC=5.1.3.1 {ECO:0000256|ARBA:ARBA00013188, ECO:0000256|PIRNR:PIRNR001461};
GN Name=cfxE {ECO:0000313|EMBL:ACB42716.1};
GN OrderedLocusNames=PCC_0267 {ECO:0000313|EMBL:ACB42716.1};
OS Paulinella chromatophora.
OG Plastid; Organellar chromatophore {ECO:0000313|EMBL:ACB42716.1}.
OC Eukaryota; Sar; Rhizaria; Cercozoa; Imbricatea; Silicofilosea; Euglyphida;
OC Paulinellidae; Paulinella.
OX NCBI_TaxID=39717 {ECO:0000313|EMBL:ACB42716.1};
RN [1] {ECO:0000313|EMBL:ACB42716.1}
RP NUCLEOTIDE SEQUENCE.
RA Gloeckner G., Nowack E., Melkonian M.;
RL Submitted (AUG-2007) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ACB42716.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=18356055; DOI=10.1016/j.cub.2008.02.051;
RA Nowack E.C.M., Melkonian M., Gloeckner G.;
RT "Chromatophore genome sequence of Paulinella sheds light on acquisition of
RT photosynthesis by eukaryotes.";
RL Curr. Biol. 18:410-418(2008).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-ribulose 5-phosphate = D-xylulose 5-phosphate;
CC Xref=Rhea:RHEA:13677, ChEBI:CHEBI:57737, ChEBI:CHEBI:58121;
CC EC=5.1.3.1; Evidence={ECO:0000256|ARBA:ARBA00001782,
CC ECO:0000256|PIRNR:PIRNR001461};
CC -!- COFACTOR:
CC Name=Co(2+); Xref=ChEBI:CHEBI:48828;
CC Evidence={ECO:0000256|ARBA:ARBA00001941};
CC -!- COFACTOR:
CC Name=Fe(2+); Xref=ChEBI:CHEBI:29033;
CC Evidence={ECO:0000256|ARBA:ARBA00001954};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|ARBA:ARBA00001936};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|ARBA:ARBA00001947};
CC -!- COFACTOR:
CC Name=a divalent metal cation; Xref=ChEBI:CHEBI:60240;
CC Evidence={ECO:0000256|PIRSR:PIRSR001461-2};
CC Note=Binds 1 divalent metal cation per subunit.
CC {ECO:0000256|PIRSR:PIRSR001461-2};
CC -!- SIMILARITY: Belongs to the ribulose-phosphate 3-epimerase family.
CC {ECO:0000256|ARBA:ARBA00009541, ECO:0000256|PIRNR:PIRNR001461}.
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DR EMBL; CP000815; ACB42716.1; -; Genomic_DNA.
DR RefSeq; YP_002048926.1; NC_011087.1.
DR AlphaFoldDB; B1X447; -.
DR GeneID; 6481196; -.
DR GO; GO:0009536; C:plastid; IEA:UniProtKB-KW.
DR GO; GO:0004750; F:D-ribulose-phosphate 3-epimerase activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0005975; P:carbohydrate metabolic process; IEA:UniProtKB-KW.
DR GO; GO:0006098; P:pentose-phosphate shunt; IEA:InterPro.
DR CDD; cd00429; RPE; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR HAMAP; MF_02227; RPE; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR026019; Ribul_P_3_epim.
DR InterPro; IPR000056; Ribul_P_3_epim-like.
DR InterPro; IPR011060; RibuloseP-bd_barrel.
DR NCBIfam; TIGR01163; rpe; 1.
DR PANTHER; PTHR11749; RIBULOSE-5-PHOSPHATE-3-EPIMERASE; 1.
DR PANTHER; PTHR11749:SF3; RIBULOSE-PHOSPHATE 3-EPIMERASE-RELATED; 1.
DR Pfam; PF00834; Ribul_P_3_epim; 1.
DR PIRSF; PIRSF001461; RPE; 1.
DR SUPFAM; SSF51366; Ribulose-phoshate binding barrel; 1.
DR PROSITE; PS01085; RIBUL_P_3_EPIMER_1; 1.
DR PROSITE; PS01086; RIBUL_P_3_EPIMER_2; 1.
PE 3: Inferred from homology;
KW Carbohydrate metabolism {ECO:0000256|PIRNR:PIRNR001461};
KW Cobalt {ECO:0000256|PIRSR:PIRSR001461-2};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|PIRNR:PIRNR001461};
KW Manganese {ECO:0000256|PIRSR:PIRSR001461-2};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRSR:PIRSR001461-2}; Plastid {ECO:0000313|EMBL:ACB42716.1};
KW Zinc {ECO:0000256|PIRSR:PIRSR001461-2}.
FT ACT_SITE 38
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-1"
FT ACT_SITE 178
FT /note="Proton donor"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-1"
FT BINDING 11
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-3"
FT BINDING 36
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-2"
FT BINDING 38
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-2"
FT BINDING 69
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-2"
FT BINDING 69
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-3"
FT BINDING 145..148
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-3"
FT BINDING 178
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-2"
FT BINDING 180
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-3"
FT BINDING 200..201
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR001461-3"
SQ SEQUENCE 222 AA; 23984 MW; 3B62197F30362CAD CRC64;
MSTKSLMISP SILSADFSRL GEDVVAVDKA GADWIHVDVM DGRFVPNITI GPLIVEALRP
VTKKPLDVHL MIIEPERYVA DFAKAGADII SVQVEACPHL HRNLAQIKDL GKMAGAVLNP
STSLSSLDYC LELCDLVLIM SVNPGFGGQS FIDSQVNKIR ELRRICDERG LDPWIEVDGG
VKGSNAWKVI EAGANAIVSG SGIFSQSNYA EAIQGIRNSR KP
//