ID   BETA_KLEP3              Reviewed;         554 AA.
AC   B5Y008;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   25-NOV-2008, sequence version 1.
DT   03-AUG-2022, entry version 79.
DE   RecName: Full=Oxygen-dependent choline dehydrogenase {ECO:0000255|HAMAP-Rule:MF_00750};
DE            Short=CDH {ECO:0000255|HAMAP-Rule:MF_00750};
DE            Short=CHD {ECO:0000255|HAMAP-Rule:MF_00750};
DE            EC=1.1.99.1 {ECO:0000255|HAMAP-Rule:MF_00750};
DE   AltName: Full=Betaine aldehyde dehydrogenase {ECO:0000255|HAMAP-Rule:MF_00750};
DE            Short=BADH {ECO:0000255|HAMAP-Rule:MF_00750};
DE            EC=1.2.1.8 {ECO:0000255|HAMAP-Rule:MF_00750};
GN   Name=betA {ECO:0000255|HAMAP-Rule:MF_00750}; OrderedLocusNames=KPK_3995;
OS   Klebsiella pneumoniae (strain 342).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX   NCBI_TaxID=507522;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=342;
RX   PubMed=18654632; DOI=10.1371/journal.pgen.1000141;
RA   Fouts D.E., Tyler H.L., DeBoy R.T., Daugherty S., Ren Q., Badger J.H.,
RA   Durkin A.S., Huot H., Shrivastava S., Kothari S., Dodson R.J., Mohamoud Y.,
RA   Khouri H., Roesch L.F.W., Krogfelt K.A., Struve C., Triplett E.W.,
RA   Methe B.A.;
RT   "Complete genome sequence of the N2-fixing broad host range endophyte
RT   Klebsiella pneumoniae 342 and virulence predictions verified in mice.";
RL   PLoS Genet. 4:E1000141-E1000141(2008).
CC   -!- FUNCTION: Involved in the biosynthesis of the osmoprotectant glycine
CC       betaine. Catalyzes the oxidation of choline to betaine aldehyde and
CC       betaine aldehyde to glycine betaine at the same rate.
CC       {ECO:0000255|HAMAP-Rule:MF_00750}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=A + choline = AH2 + betaine aldehyde; Xref=Rhea:RHEA:17433,
CC         ChEBI:CHEBI:13193, ChEBI:CHEBI:15354, ChEBI:CHEBI:15710,
CC         ChEBI:CHEBI:17499; EC=1.1.99.1; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00750};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=betaine aldehyde + H2O + NAD(+) = glycine betaine + 2 H(+) +
CC         NADH; Xref=Rhea:RHEA:15305, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:15710, ChEBI:CHEBI:17750, ChEBI:CHEBI:57540,
CC         ChEBI:CHEBI:57945; EC=1.2.1.8; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00750};
CC   -!- COFACTOR:
CC       Name=FAD; Xref=ChEBI:CHEBI:57692;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00750};
CC   -!- PATHWAY: Amine and polyamine biosynthesis; betaine biosynthesis via
CC       choline pathway; betaine aldehyde from choline (cytochrome c reductase
CC       route): step 1/1. {ECO:0000255|HAMAP-Rule:MF_00750}.
CC   -!- SIMILARITY: Belongs to the GMC oxidoreductase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00750}.
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DR   EMBL; CP000964; ACI07067.1; -; Genomic_DNA.
DR   AlphaFoldDB; B5Y008; -.
DR   SMR; B5Y008; -.
DR   EnsemblBacteria; ACI07067; ACI07067; KPK_3995.
DR   KEGG; kpe:KPK_3995; -.
DR   HOGENOM; CLU_002865_7_1_6; -.
DR   OMA; NHFESCA; -.
DR   UniPathway; UPA00529; UER00385.
DR   Proteomes; UP000001734; Chromosome.
DR   GO; GO:0008802; F:betaine-aldehyde dehydrogenase activity; IEA:UniProtKB-EC.
DR   GO; GO:0008812; F:choline dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR   GO; GO:0019285; P:glycine betaine biosynthetic process from choline; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.50.50.60; -; 1.
DR   HAMAP; MF_00750; Choline_dehydrogen; 1.
DR   InterPro; IPR011533; BetA.
DR   InterPro; IPR036188; FAD/NAD-bd_sf.
DR   InterPro; IPR012132; GMC_OxRdtase.
DR   InterPro; IPR000172; GMC_OxRdtase_N.
DR   InterPro; IPR007867; GMC_OxRtase_C.
DR   PANTHER; PTHR11552; PTHR11552; 1.
DR   Pfam; PF05199; GMC_oxred_C; 1.
DR   Pfam; PF00732; GMC_oxred_N; 1.
DR   PIRSF; PIRSF000137; Alcohol_oxidase; 1.
DR   SUPFAM; SSF51905; SSF51905; 1.
DR   TIGRFAMs; TIGR01810; betA; 1.
DR   PROSITE; PS00623; GMC_OXRED_1; 1.
DR   PROSITE; PS00624; GMC_OXRED_2; 1.
PE   3: Inferred from homology;
KW   FAD; Flavoprotein; NAD; Oxidoreductase.
FT   CHAIN           1..554
FT                   /note="Oxygen-dependent choline dehydrogenase"
FT                   /id="PRO_1000133333"
FT   ACT_SITE        473
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00750"
FT   BINDING         4..33
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00750"
SQ   SEQUENCE   554 AA;  61431 MW;  54C22482DD100D84 CRC64;
     MQFDYIIIGA GSAGNVLATR LTEDPNTTVL LLEAGGPDYR FDFRTQMPAA LAYPLQGKRY
     NWAYETEPEP YMNHRRMECG RGKGLGGSSL INGMCYIRGN AMDLDNWAKE PGLEHWSYLD
     CLPYYRKAET RDIGPNDYHG GDGPVSVTTP KPGNNPLFEA MVTAGVQAGY PRTDDLNGYQ
     QEGFGPMDRT VTPQGRRAST ARGYLDQARG RPNLTIRTHA LTDHIIFAGK RAVGVEWLEG
     ESTIPSKATA NKEVLLCAGA IASPQILQRS GVGNPELLRQ FDIPVVHDLP GVGENLQDHL
     EMYLQYECKE PVSLYPALQW WNQPKIGAEW LFGGTGIGAS NQFEAGGFIR SRAEFAWPNI
     QYHFLPVAIN YNGSNAVKEH GFQCHVGSMR SPSRGHVRLK SRDPHAHPAI LFNYMSHEQD
     WQEFRDAIRI TREIMNQPAL DKYRGREISP GTECQSDAEL DEFVRNHAET AFHPCGTCKM
     GYDEMAVVDG EGRVHGLEGV RVVDASIMPQ IITGNLNATT IMIGEKMADA IRGRQPLPRS
     TAAYYVAGGA PVRR