ID   KDSB_ECO55              Reviewed;         248 AA.
AC   B7LE16;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   25-MAY-2022, entry version 66.
DE   RecName: Full=3-deoxy-manno-octulosonate cytidylyltransferase {ECO:0000255|HAMAP-Rule:MF_00057};
DE            EC=2.7.7.38 {ECO:0000255|HAMAP-Rule:MF_00057};
DE   AltName: Full=CMP-2-keto-3-deoxyoctulosonic acid synthase {ECO:0000255|HAMAP-Rule:MF_00057};
DE            Short=CKS {ECO:0000255|HAMAP-Rule:MF_00057};
DE            Short=CMP-KDO synthase {ECO:0000255|HAMAP-Rule:MF_00057};
GN   Name=kdsB {ECO:0000255|HAMAP-Rule:MF_00057};
GN   OrderedLocusNames=EC55989_0963;
OS   Escherichia coli (strain 55989 / EAEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=585055;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=55989 / EAEC;
RX   PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA   Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA   Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA   Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA   Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA   Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA   Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA   Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT   "Organised genome dynamics in the Escherichia coli species results in
RT   highly diverse adaptive paths.";
RL   PLoS Genet. 5:E1000344-E1000344(2009).
CC   -!- FUNCTION: Activates KDO (a required 8-carbon sugar) for incorporation
CC       into bacterial lipopolysaccharide in Gram-negative bacteria.
CC       {ECO:0000255|HAMAP-Rule:MF_00057}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=3-deoxy-alpha-D-manno-oct-2-ulosonate + CTP = CMP-3-deoxy-
CC         beta-D-manno-octulosonate + diphosphate; Xref=Rhea:RHEA:23448,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:37563, ChEBI:CHEBI:85986,
CC         ChEBI:CHEBI:85987; EC=2.7.7.38; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00057};
CC   -!- PATHWAY: Nucleotide-sugar biosynthesis; CMP-3-deoxy-D-manno-
CC       octulosonate biosynthesis; CMP-3-deoxy-D-manno-octulosonate from 3-
CC       deoxy-D-manno-octulosonate and CTP: step 1/1. {ECO:0000255|HAMAP-
CC       Rule:MF_00057}.
CC   -!- PATHWAY: Bacterial outer membrane biogenesis; lipopolysaccharide
CC       biosynthesis. {ECO:0000255|HAMAP-Rule:MF_00057}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00057}.
CC   -!- SIMILARITY: Belongs to the KdsB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00057}.
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DR   EMBL; CU928145; CAU96827.1; -; Genomic_DNA.
DR   RefSeq; WP_000011590.1; NC_011748.1.
DR   AlphaFoldDB; B7LE16; -.
DR   SMR; B7LE16; -.
DR   EnsemblBacteria; CAU96827; CAU96827; EC55989_0963.
DR   GeneID; 66670806; -.
DR   KEGG; eck:EC55989_0963; -.
DR   HOGENOM; CLU_065038_1_0_6; -.
DR   OMA; FMATCAK; -.
DR   UniPathway; UPA00030; -.
DR   UniPathway; UPA00358; UER00476.
DR   Proteomes; UP000000746; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0008690; F:3-deoxy-manno-octulosonate cytidylyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0033468; P:CMP-keto-3-deoxy-D-manno-octulosonic acid biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0009103; P:lipopolysaccharide biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd02517; CMP-KDO-Synthetase; 1.
DR   Gene3D; 3.90.550.10; -; 1.
DR   HAMAP; MF_00057; KdsB; 1.
DR   InterPro; IPR003329; Cytidylyl_trans.
DR   InterPro; IPR004528; KdsB.
DR   InterPro; IPR029044; Nucleotide-diphossugar_trans.
DR   Pfam; PF02348; CTP_transf_3; 1.
DR   SUPFAM; SSF53448; SSF53448; 1.
DR   TIGRFAMs; TIGR00466; kdsB; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Lipopolysaccharide biosynthesis; Nucleotidyltransferase;
KW   Transferase.
FT   CHAIN           1..248
FT                   /note="3-deoxy-manno-octulosonate cytidylyltransferase"
FT                   /id="PRO_1000117800"
SQ   SEQUENCE   248 AA;  27600 MW;  60C21465399A114F CRC64;
     MSFVVIIPAR YASTRLPGKP LVDINGKPMI VHVLERARES GADRIIVATD HEDVARAVEA
     AGGEVCMTRA DHQSGTERLA EVVEKCAFSD DTVIVNVQGD EPMIPATIIR QVADNLAQRQ
     VGMATLAVPI HNAEEAFNPN AVKVVLDAEG YALYFSRATI PWDRDRFAEG LETVGDNFLR
     HLGIYGYRAG FIRRYVNWQP SPLEHIEMLE QLRVLWYGEK IHVAVAQEVP GTGVDTPEDL
     ERVRAEMR