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HPRK_XANC5
ID   HPRK_XANC5              Reviewed;         316 AA.
AC   Q3BQW1;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=HPr kinase/phosphorylase {ECO:0000255|HAMAP-Rule:MF_01249};
DE            Short=HPrK/P {ECO:0000255|HAMAP-Rule:MF_01249};
DE            EC=2.7.11.- {ECO:0000255|HAMAP-Rule:MF_01249};
DE            EC=2.7.4.- {ECO:0000255|HAMAP-Rule:MF_01249};
DE   AltName: Full=HPr(Ser) kinase/phosphorylase {ECO:0000255|HAMAP-Rule:MF_01249};
GN   Name=hprK {ECO:0000255|HAMAP-Rule:MF_01249}; OrderedLocusNames=XCV3121;
OS   Xanthomonas campestris pv. vesicatoria (strain 85-10).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=316273;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=85-10;
RX   PubMed=16237009; DOI=10.1128/jb.187.21.7254-7266.2005;
RA   Thieme F., Koebnik R., Bekel T., Berger C., Boch J., Buettner D.,
RA   Caldana C., Gaigalat L., Goesmann A., Kay S., Kirchner O., Lanz C.,
RA   Linke B., McHardy A.C., Meyer F., Mittenhuber G., Nies D.H.,
RA   Niesbach-Kloesgen U., Patschkowski T., Rueckert C., Rupp O., Schneiker S.,
RA   Schuster S.C., Vorhoelter F.J., Weber E., Puehler A., Bonas U., Bartels D.,
RA   Kaiser O.;
RT   "Insights into genome plasticity and pathogenicity of the plant pathogenic
RT   Bacterium Xanthomonas campestris pv. vesicatoria revealed by the complete
RT   genome sequence.";
RL   J. Bacteriol. 187:7254-7266(2005).
CC   -!- FUNCTION: Catalyzes the ATP- as well as the pyrophosphate-dependent
CC       phosphorylation of a specific serine residue in HPr, a phosphocarrier
CC       protein of the phosphoenolpyruvate-dependent sugar phosphotransferase
CC       system (PTS). HprK/P also catalyzes the pyrophosphate-producing,
CC       inorganic phosphate-dependent dephosphorylation (phosphorolysis) of
CC       seryl-phosphorylated HPr (P-Ser-HPr). {ECO:0000255|HAMAP-
CC       Rule:MF_01249}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[HPr protein]-L-serine + ATP = [HPr protein]-O-phospho-L-
CC         serine + ADP + H(+); Xref=Rhea:RHEA:46600, Rhea:RHEA-COMP:11602,
CC         Rhea:RHEA-COMP:11603, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:83421, ChEBI:CHEBI:456216;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01249};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[HPr protein]-O-phospho-L-serine + H(+) + phosphate = [HPr
CC         protein]-L-serine + diphosphate; Xref=Rhea:RHEA:46604, Rhea:RHEA-
CC         COMP:11602, Rhea:RHEA-COMP:11603, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:29999, ChEBI:CHEBI:33019, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:83421; Evidence={ECO:0000255|HAMAP-Rule:MF_01249};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01249};
CC   -!- SUBUNIT: Homohexamer. {ECO:0000255|HAMAP-Rule:MF_01249}.
CC   -!- DOMAIN: The Walker A ATP-binding motif also binds Pi and PPi.
CC       {ECO:0000255|HAMAP-Rule:MF_01249}.
CC   -!- MISCELLANEOUS: Both phosphorylation and phosphorolysis are carried out
CC       by the same active site and suggest a common mechanism for both
CC       reactions. {ECO:0000255|HAMAP-Rule:MF_01249}.
CC   -!- SIMILARITY: Belongs to the HPrK/P family. {ECO:0000255|HAMAP-
CC       Rule:MF_01249}.
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DR   EMBL; AM039952; CAJ24852.1; -; Genomic_DNA.
DR   RefSeq; WP_003487845.1; NZ_CP017190.1.
DR   AlphaFoldDB; Q3BQW1; -.
DR   SMR; Q3BQW1; -.
DR   STRING; 456327.BJD11_07220; -.
DR   EnsemblBacteria; CAJ24852; CAJ24852; XCV3121.
DR   GeneID; 63992130; -.
DR   KEGG; xcv:XCV3121; -.
DR   eggNOG; COG1493; Bacteria.
DR   HOGENOM; CLU_052030_0_2_6; -.
DR   OMA; AMNNRQK; -.
DR   Proteomes; UP000007069; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0000155; F:phosphorelay sensor kinase activity; IEA:InterPro.
DR   GO; GO:0004674; F:protein serine/threonine kinase activity; IEA:UniProtKB-KW.
DR   GO; GO:0004712; F:protein serine/threonine/tyrosine kinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006109; P:regulation of carbohydrate metabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd01918; HprK_C; 1.
DR   Gene3D; 3.40.1390.20; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_01249; HPr_kinase; 1.
DR   InterPro; IPR003755; HPr(Ser)_kin/Pase.
DR   InterPro; IPR011104; Hpr_kin/Pase_C.
DR   InterPro; IPR011126; Hpr_kin/Pase_Hpr_N.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR028979; Ser_kin/Pase_Hpr-like_N_sf.
DR   PANTHER; PTHR30305:SF1; PTHR30305:SF1; 1.
DR   Pfam; PF07475; Hpr_kinase_C; 1.
DR   Pfam; PF02603; Hpr_kinase_N; 1.
DR   SUPFAM; SSF75138; SSF75138; 1.
DR   TIGRFAMs; TIGR00679; hpr-ser; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Kinase; Magnesium; Metal-binding; Multifunctional enzyme;
KW   Nucleotide-binding; Serine/threonine-protein kinase; Transferase.
FT   CHAIN           1..316
FT                   /note="HPr kinase/phosphorylase"
FT                   /id="PRO_1000067182"
FT   REGION          206..215
FT                   /note="Important for the catalytic mechanism of both
FT                   phosphorylation and dephosphorylation"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01249"
FT   REGION          272..277
FT                   /note="Important for the catalytic mechanism of
FT                   dephosphorylation"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01249"
FT   ACT_SITE        143
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01249"
FT   ACT_SITE        164
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01249"
FT   ACT_SITE        182
FT                   /note="Proton acceptor; for phosphorylation activity.
FT                   Proton donor; for dephosphorylation activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01249"
FT   ACT_SITE        251
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01249"
FT   BINDING         158..165
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01249"
FT   BINDING         165
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01249"
FT   BINDING         207
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01249"
SQ   SEQUENCE   316 AA;  35113 MW;  AE5E90114E361308 CRC64;
     MNTSITAREL FDQQRDKLAL RWVAGPKGEH REIQAGSNNA RRPSLAGYLN VIYPNKVQIL
     GTEELAWLDS LDARQRWETI EKIIQVQPLA LAISKNQSCP EDLRAAADES NTPLWISSKR
     GHELLNHLSY HLARTLAPRV TLHGVFMEIY SIGVLITGEA GSGKSELALE LLSRGHRLVA
     DDAPEFTQIA PDVLDGTCPE LLQDLLEVRG LGVLNVRDMF GDTAVKKNKY LRLIVHLTRP
     MTEPTPSGYE RLTGDSGSRH VLDLDVPLIT LPVMPGRNLA VLTEAATRLH ILRTKGIDPA
     AMFIARHSNL LERRTP
 
 
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