ID   ACEK_XANC8              Reviewed;         579 AA.
AC   Q4UPY1;
DT   31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2005, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=Isocitrate dehydrogenase kinase/phosphatase {ECO:0000255|HAMAP-Rule:MF_00747};
DE            Short=IDH kinase/phosphatase {ECO:0000255|HAMAP-Rule:MF_00747};
DE            Short=IDHK/P {ECO:0000255|HAMAP-Rule:MF_00747};
DE            EC=2.7.11.5 {ECO:0000255|HAMAP-Rule:MF_00747};
DE            EC=3.1.3.- {ECO:0000255|HAMAP-Rule:MF_00747};
GN   Name=aceK {ECO:0000255|HAMAP-Rule:MF_00747}; OrderedLocusNames=XC_3852;
OS   Xanthomonas campestris pv. campestris (strain 8004).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=314565;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=8004;
RX   PubMed=15899963; DOI=10.1101/gr.3378705;
RA   Qian W., Jia Y., Ren S.-X., He Y.-Q., Feng J.-X., Lu L.-F., Sun Q.,
RA   Ying G., Tang D.-J., Tang H., Wu W., Hao P., Wang L., Jiang B.-L., Zeng S.,
RA   Gu W.-Y., Lu G., Rong L., Tian Y., Yao Z., Fu G., Chen B., Fang R.,
RA   Qiang B., Chen Z., Zhao G.-P., Tang J.-L., He C.;
RT   "Comparative and functional genomic analyses of the pathogenicity of
RT   phytopathogen Xanthomonas campestris pv. campestris.";
RL   Genome Res. 15:757-767(2005).
CC   -!- FUNCTION: Bifunctional enzyme which can phosphorylate or
CC       dephosphorylate isocitrate dehydrogenase (IDH) on a specific serine
CC       residue. This is a regulatory mechanism which enables bacteria to
CC       bypass the Krebs cycle via the glyoxylate shunt in response to the
CC       source of carbon. When bacteria are grown on glucose, IDH is fully
CC       active and unphosphorylated, but when grown on acetate or ethanol, the
CC       activity of IDH declines drastically concomitant with its
CC       phosphorylation. {ECO:0000255|HAMAP-Rule:MF_00747}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-seryl-[isocitrate dehydrogenase] = ADP + H(+) + O-
CC         phospho-L-seryl-[isocitrate dehydrogenase]; Xref=Rhea:RHEA:43540,
CC         Rhea:RHEA-COMP:10605, Rhea:RHEA-COMP:10606, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:29999, ChEBI:CHEBI:30616, ChEBI:CHEBI:83421,
CC         ChEBI:CHEBI:456216; EC=2.7.11.5; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00747};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00747}.
CC   -!- SIMILARITY: Belongs to the AceK family. {ECO:0000255|HAMAP-
CC       Rule:MF_00747}.
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DR   EMBL; CP000050; AAY50892.1; -; Genomic_DNA.
DR   RefSeq; WP_011038861.1; NC_007086.1.
DR   AlphaFoldDB; Q4UPY1; -.
DR   SMR; Q4UPY1; -.
DR   EnsemblBacteria; AAY50892; AAY50892; XC_3852.
DR   KEGG; xcb:XC_3852; -.
DR   HOGENOM; CLU_033804_1_1_6; -.
DR   OMA; EPWYSVG; -.
DR   OrthoDB; 245269at2; -.
DR   Proteomes; UP000000420; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0008772; F:[isocitrate dehydrogenase (NADP+)] kinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004721; F:phosphoprotein phosphatase activity; IEA:UniProtKB-KW.
DR   GO; GO:0004674; F:protein serine/threonine kinase activity; IEA:UniProtKB-KW.
DR   GO; GO:0006006; P:glucose metabolic process; IEA:InterPro.
DR   GO; GO:0006097; P:glyoxylate cycle; IEA:UniProtKB-UniRule.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00747; AceK; 1.
DR   InterPro; IPR010452; Isocitrate_DH_AceK.
DR   PANTHER; PTHR39559; PTHR39559; 1.
DR   Pfam; PF06315; AceK; 1.
DR   PIRSF; PIRSF000719; AceK; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Glyoxylate bypass; Hydrolase; Kinase;
KW   Nucleotide-binding; Protein phosphatase; Serine/threonine-protein kinase;
KW   Transferase; Tricarboxylic acid cycle.
FT   CHAIN           1..579
FT                   /note="Isocitrate dehydrogenase kinase/phosphatase"
FT                   /id="PRO_0000259159"
FT   ACT_SITE        380
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00747"
FT   BINDING         324..330
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00747"
FT   BINDING         345
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00747"
SQ   SEQUENCE   579 AA;  66976 MW;  2A8D77113DFC8FD2 CRC64;
     MNQQPLPPQS ERRALAIGRA VYEAFQDYHA QFSQITARAR QRFETRDWSG AREDAVARIA
     LYDHYISECM LRLRAVLLGQ AHDRALWMRA RTHYAELLTG LIDQELYKTF YNTLTRRYFR
     TQGVDAQIEF IALDIEPTDA ITVPVARHTY AVSPGRLTEM LVRVLGDYPF EVPYAHRTRC
     AAAIAVRLLD DLAHWGEHPV RSVELLETVF YRERRAYLVG RLFGEHRFSP CVIALVNDDA
     GLRAEAVLTR RSDVAQLFSN SRSYFQADLT TVGDAVVFLR SLLTHKPIDE LYTMLGRAKQ
     GKTERYRTFF RHFQAHPAEQ LVHADGTPGM VMVVFTLPSY PLVFKLIRDR FAYPKTMSRA
     QVEGKYELVF QLDRIGRLLD AQPYRFLRFP KARFSPALLQ DLQSSCAMSL SEDGDDVLIA
     LCYVQRRLRP LNLYLREQLP AAAHAAALDY GQAIKDMARN NIFPGDMLLK NFGITRHQRA
     VFYDYDELCL ITECTFRDWP TPTSYEEQMA AEPWFHVGPR DVFPERFALF MGLPSSQLEA
     VKHMHPELFD PQWWRDLQAR LREDDYPDTP PYADAQKLA