ID   ISPE_PELUB              Reviewed;         281 AA.
AC   Q4FPG0;
DT   16-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2005, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=4-diphosphocytidyl-2-C-methyl-D-erythritol kinase {ECO:0000255|HAMAP-Rule:MF_00061};
DE            Short=CMK {ECO:0000255|HAMAP-Rule:MF_00061};
DE            EC=2.7.1.148 {ECO:0000255|HAMAP-Rule:MF_00061};
DE   AltName: Full=4-(cytidine-5'-diphospho)-2-C-methyl-D-erythritol kinase {ECO:0000255|HAMAP-Rule:MF_00061};
GN   Name=ispE {ECO:0000255|HAMAP-Rule:MF_00061}; OrderedLocusNames=SAR11_0105;
OS   Pelagibacter ubique (strain HTCC1062).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Pelagibacterales;
OC   Pelagibacteraceae; Candidatus Pelagibacter.
OX   NCBI_TaxID=335992;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HTCC1062;
RX   PubMed=16109880; DOI=10.1126/science.1114057;
RA   Giovannoni S.J., Tripp H.J., Givan S., Podar M., Vergin K.L., Baptista D.,
RA   Bibbs L., Eads J., Richardson T.H., Noordewier M., Rappe M.S., Short J.M.,
RA   Carrington J.C., Mathur E.J.;
RT   "Genome streamlining in a cosmopolitan oceanic bacterium.";
RL   Science 309:1242-1245(2005).
CC   -!- FUNCTION: Catalyzes the phosphorylation of the position 2 hydroxy group
CC       of 4-diphosphocytidyl-2C-methyl-D-erythritol. {ECO:0000255|HAMAP-
CC       Rule:MF_00061}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=4-CDP-2-C-methyl-D-erythritol + ATP = 4-CDP-2-C-methyl-D-
CC         erythritol 2-phosphate + ADP + H(+); Xref=Rhea:RHEA:18437,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, ChEBI:CHEBI:57823,
CC         ChEBI:CHEBI:57919, ChEBI:CHEBI:456216; EC=2.7.1.148;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00061};
CC   -!- PATHWAY: Isoprenoid biosynthesis; isopentenyl diphosphate biosynthesis
CC       via DXP pathway; isopentenyl diphosphate from 1-deoxy-D-xylulose 5-
CC       phosphate: step 3/6. {ECO:0000255|HAMAP-Rule:MF_00061}.
CC   -!- SIMILARITY: Belongs to the GHMP kinase family. IspE subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00061}.
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DR   EMBL; CP000084; AAZ20929.1; -; Genomic_DNA.
DR   RefSeq; WP_011281473.1; NC_007205.1.
DR   AlphaFoldDB; Q4FPG0; -.
DR   SMR; Q4FPG0; -.
DR   STRING; 335992.SAR11_0105; -.
DR   EnsemblBacteria; AAZ20929; AAZ20929; SAR11_0105.
DR   GeneID; 66294608; -.
DR   KEGG; pub:SAR11_0105; -.
DR   eggNOG; COG1947; Bacteria.
DR   HOGENOM; CLU_053057_2_0_5; -.
DR   OMA; RWPSPAK; -.
DR   OrthoDB; 1938933at2; -.
DR   UniPathway; UPA00056; UER00094.
DR   Proteomes; UP000002528; Chromosome.
DR   GO; GO:0050515; F:4-(cytidine 5'-diphospho)-2-C-methyl-D-erythritol kinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0019288; P:isopentenyl diphosphate biosynthetic process, methylerythritol 4-phosphate pathway; IEA:UniProtKB-UniPathway.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   GO; GO:0016114; P:terpenoid biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.230.10; -; 1.
DR   Gene3D; 3.30.70.890; -; 1.
DR   HAMAP; MF_00061; IspE; 1.
DR   InterPro; IPR036554; GHMP_kinase_C_sf.
DR   InterPro; IPR004424; IspE.
DR   InterPro; IPR020568; Ribosomal_S5_D2-typ_fold.
DR   InterPro; IPR014721; Ribosomal_S5_D2-typ_fold_subgr.
DR   PANTHER; PTHR43527:SF2; PTHR43527:SF2; 1.
DR   PIRSF; PIRSF010376; IspE; 1.
DR   SUPFAM; SSF54211; SSF54211; 1.
DR   SUPFAM; SSF55060; SSF55060; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Isoprene biosynthesis; Kinase; Nucleotide-binding;
KW   Reference proteome; Transferase.
FT   CHAIN           1..281
FT                   /note="4-diphosphocytidyl-2-C-methyl-D-erythritol kinase"
FT                   /id="PRO_0000235111"
FT   ACT_SITE        11
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00061"
FT   ACT_SITE        138
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00061"
SQ   SEQUENCE   281 AA;  31904 MW;  ED324724E32AC279 CRC64;
     MNSFKIKSYA KINLALNVTG KKSKLHNIES LISFIDLHDS ITITESNTKQ HKINFIGRFS
     KNISKINTIS KLLKILDNKK LLNNKKFEIK VIKHIPQKAG MGGGSMNAAS LLNFFIEKKL
     IKIKKNDSKK ISNEIGSDVI LGIKPSLAIL LSNGDIKKFK NKIKFHILVA KPNFGCSTKY
     IYSKVDSFSK PQFNPPKQKL FEAKYLKNLD NDLEKVALNK YPELKRIKSY LNGLPNTLFV
     RMSGSGSSIV AYFHSKKACK KACSQYKRKF NNHWCIESKT I