ID A0A087XZ83_POEFO Unreviewed; 316 AA.
AC A0A087XZ83;
DT 29-OCT-2014, integrated into UniProtKB/TrEMBL.
DT 26-NOV-2014, sequence version 2.
DT 27-MAR-2024, entry version 39.
DE RecName: Full=Ribokinase {ECO:0000256|ARBA:ARBA00016943, ECO:0000256|HAMAP-Rule:MF_03215};
DE Short=RK {ECO:0000256|HAMAP-Rule:MF_03215};
DE EC=2.7.1.15 {ECO:0000256|ARBA:ARBA00012035, ECO:0000256|HAMAP-Rule:MF_03215};
GN Name=RBKS {ECO:0000256|HAMAP-Rule:MF_03215};
OS Poecilia formosa (Amazon molly) (Limia formosa).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Ovalentaria; Atherinomorphae; Cyprinodontiformes; Poeciliidae; Poeciliinae;
OC Poecilia.
OX NCBI_TaxID=48698 {ECO:0000313|Ensembl:ENSPFOP00000011086.2, ECO:0000313|Proteomes:UP000028760};
RN [1] {ECO:0000313|Proteomes:UP000028760}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=female {ECO:0000313|Proteomes:UP000028760};
RA Schartl M., Warren W.;
RL Submitted (OCT-2013) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Ensembl:ENSPFOP00000011086.2}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (SEP-2023) to UniProtKB.
CC -!- FUNCTION: Catalyzes the phosphorylation of ribose at O-5 in a reaction
CC requiring ATP and magnesium. The resulting D-ribose-5-phosphate can
CC then be used either for sythesis of nucleotides, histidine, and
CC tryptophan, or as a component of the pentose phosphate pathway.
CC {ECO:0000256|HAMAP-Rule:MF_03215}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + D-ribose = ADP + D-ribose 5-phosphate + H(+);
CC Xref=Rhea:RHEA:13697, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:47013, ChEBI:CHEBI:78346, ChEBI:CHEBI:456216;
CC EC=2.7.1.15; Evidence={ECO:0000256|ARBA:ARBA00000691,
CC ECO:0000256|HAMAP-Rule:MF_03215};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03215};
CC Note=Requires a divalent cation, most likely magnesium in vivo, as an
CC electrophilic catalyst to aid phosphoryl group transfer. It is the
CC chelate of the metal and the nucleotide that is the actual substrate.
CC {ECO:0000256|HAMAP-Rule:MF_03215};
CC -!- ACTIVITY REGULATION: Activated by a monovalent cation that binds near,
CC but not in, the active site. The most likely occupant of the site in
CC vivo is potassium. Ion binding induces a conformational change that may
CC alter substrate affinity. {ECO:0000256|HAMAP-Rule:MF_03215}.
CC -!- PATHWAY: Carbohydrate metabolism; D-ribose degradation; D-ribose 5-
CC phosphate from beta-D-ribopyranose: step 2/2. {ECO:0000256|HAMAP-
CC Rule:MF_03215}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_03215}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03215}.
CC Nucleus {ECO:0000256|HAMAP-Rule:MF_03215}.
CC -!- SIMILARITY: Belongs to the carbohydrate kinase PfkB family. Ribokinase
CC subfamily. {ECO:0000256|HAMAP-Rule:MF_03215}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_03215}.
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DR EMBL; AYCK01001313; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AYCK01001314; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR AlphaFoldDB; A0A087XZ83; -.
DR STRING; 48698.ENSPFOP00000011086; -.
DR Ensembl; ENSPFOT00000011102.2; ENSPFOP00000011086.2; ENSPFOG00000011047.2.
DR eggNOG; KOG2855; Eukaryota.
DR GeneTree; ENSGT00390000005743; -.
DR OMA; DIVLIQQ; -.
DR UniPathway; UPA00916; UER00889.
DR Proteomes; UP000028760; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004747; F:ribokinase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019303; P:D-ribose catabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0006753; P:nucleoside phosphate metabolic process; IEA:UniProt.
DR CDD; cd01174; ribokinase; 1.
DR Gene3D; 3.40.1190.20; -; 1.
DR HAMAP; MF_01987; Ribokinase; 1.
DR InterPro; IPR002173; Carboh/pur_kinase_PfkB_CS.
DR InterPro; IPR011877; D_ribokin.
DR InterPro; IPR011611; PfkB_dom.
DR InterPro; IPR002139; Ribo/fructo_kinase.
DR InterPro; IPR029056; Ribokinase-like.
DR NCBIfam; TIGR02152; D_ribokin_bact; 1.
DR PANTHER; PTHR10584:SF166; RIBOKINASE; 1.
DR PANTHER; PTHR10584; SUGAR KINASE; 1.
DR Pfam; PF00294; PfkB; 1.
DR PRINTS; PR00990; RIBOKINASE.
DR SUPFAM; SSF53613; Ribokinase-like; 1.
DR PROSITE; PS00584; PFKB_KINASES_2; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|HAMAP-Rule:MF_03215};
KW Carbohydrate metabolism {ECO:0000256|HAMAP-Rule:MF_03215};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03215};
KW Kinase {ECO:0000256|HAMAP-Rule:MF_03215, ECO:0000256|RuleBase:RU003704};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_03215};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_03215}; Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_03215};
KW Nucleus {ECO:0000256|HAMAP-Rule:MF_03215};
KW Potassium {ECO:0000256|ARBA:ARBA00022958, ECO:0000256|HAMAP-Rule:MF_03215};
KW Reference proteome {ECO:0000313|Proteomes:UP000028760};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_03215}.
FT DOMAIN 7..306
FT /note="Carbohydrate kinase PfkB"
FT /evidence="ECO:0000259|Pfam:PF00294"
FT ACT_SITE 263
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 15..17
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 43..47
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 148
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 193
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 229..234
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 257
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 259
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 262..263
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 263
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 289
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 295
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 298
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 300
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
FT BINDING 304
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03215"
SQ SEQUENCE 316 AA; 33994 MW; BF82A13F36B512DF CRC64;
MSDRAFDVVV VGSCMTDLVS QAPRLPKAGE TIHGHKFFIG FGGKGANQCI QAARLGVKTA
MICKVGKDFF GDNYIQNFKD NDVHTDFVWQ TSDAATGAAS ITVNDAVPWE GENAIVIVAG
ANMRLGEEEL QKALTAIRKA KVLVCQLEIS SQTSLRALQM AHDNKVRTIF NPAPAIPDLD
FGFYRVSDVF CCNESEAELL TGYSVNNVED AHQAAQELLR RGCTAVIITL GPQGCVVLKA
QDKTSTHVPS TAVKAVDTTG AGDSFIGALA FYLAHHPDMP LEEMARRANQ VAAVSVQAVG
TQTSFPFKRD LPADLF
//
