ECTC_BORA1
ID ECTC_BORA1 Reviewed; 132 AA.
AC Q2KY19;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 07-MAR-2006, sequence version 1.
DT 25-MAY-2022, entry version 86.
DE RecName: Full=L-ectoine synthase {ECO:0000255|HAMAP-Rule:MF_01255};
DE EC=4.2.1.108 {ECO:0000255|HAMAP-Rule:MF_01255};
DE AltName: Full=N-acetyldiaminobutyrate dehydratase {ECO:0000255|HAMAP-Rule:MF_01255};
GN Name=ectC {ECO:0000255|HAMAP-Rule:MF_01255}; OrderedLocusNames=BAV2372;
OS Bordetella avium (strain 197N).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Alcaligenaceae; Bordetella.
OX NCBI_TaxID=360910;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=197N;
RX PubMed=16885469; DOI=10.1128/jb.01927-05;
RA Sebaihia M., Preston A., Maskell D.J., Kuzmiak H., Connell T.D., King N.D.,
RA Orndorff P.E., Miyamoto D.M., Thomson N.R., Harris D., Goble A., Lord A.,
RA Murphy L., Quail M.A., Rutter S., Squares R., Squares S., Woodward J.,
RA Parkhill J., Temple L.M.;
RT "Comparison of the genome sequence of the poultry pathogen Bordetella avium
RT with those of B. bronchiseptica, B. pertussis, and B. parapertussis reveals
RT extensive diversity in surface structures associated with host
RT interaction.";
RL J. Bacteriol. 188:6002-6015(2006).
CC -!- FUNCTION: Catalyzes the circularization of gamma-N-acetyl-alpha,gamma-
CC diaminobutyric acid (ADABA) to ectoine (1,4,5,6-tetrahydro-2-methyl-4-
CC pyrimidine carboxylic acid), which is an excellent osmoprotectant.
CC {ECO:0000255|HAMAP-Rule:MF_01255}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2S)-4-acetamido-2-aminobutanoate = H2O + L-ectoine;
CC Xref=Rhea:RHEA:17281, ChEBI:CHEBI:15377, ChEBI:CHEBI:58515,
CC ChEBI:CHEBI:58929; EC=4.2.1.108; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01255};
CC -!- PATHWAY: Amine and polyamine biosynthesis; ectoine biosynthesis; L-
CC ectoine from L-aspartate 4-semialdehyde: step 3/3. {ECO:0000255|HAMAP-
CC Rule:MF_01255}.
CC -!- SIMILARITY: Belongs to the ectoine synthase family. {ECO:0000255|HAMAP-
CC Rule:MF_01255}.
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DR EMBL; AM167904; CAJ49982.1; -; Genomic_DNA.
DR RefSeq; WP_012418033.1; NC_010645.1.
DR AlphaFoldDB; Q2KY19; -.
DR SMR; Q2KY19; -.
DR STRING; 360910.BAV2372; -.
DR EnsemblBacteria; CAJ49982; CAJ49982; BAV2372.
DR GeneID; 41394211; -.
DR KEGG; bav:BAV2372; -.
DR eggNOG; COG0662; Bacteria.
DR HOGENOM; CLU_154525_0_0_4; -.
DR OMA; CVFNPPI; -.
DR OrthoDB; 1928636at2; -.
DR UniPathway; UPA00067; UER00123.
DR Proteomes; UP000001977; Chromosome.
DR GO; GO:0033990; F:ectoine synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0019491; P:ectoine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd06978; cupin_EctC; 1.
DR Gene3D; 2.60.120.10; -; 1.
DR HAMAP; MF_01255; Ectoine_synth; 1.
DR InterPro; IPR010462; Ectoine_synth.
DR InterPro; IPR014710; RmlC-like_jellyroll.
DR InterPro; IPR011051; RmlC_Cupin_sf.
DR PANTHER; PTHR39289; PTHR39289; 1.
DR Pfam; PF06339; Ectoine_synth; 1.
DR SUPFAM; SSF51182; SSF51182; 1.
PE 3: Inferred from homology;
KW Lyase; Reference proteome.
FT CHAIN 1..132
FT /note="L-ectoine synthase"
FT /id="PRO_1000067229"
SQ SEQUENCE 132 AA; 14842 MW; 74CEA787FE79E555 CRC64;
MIVRNVKDVI GTPDEVRTDT WVSRRVLLKK DKMGFSFHET TIFPGTRTHI HYKNHLEAVW
CIEGDGSIET IADGKRYDLG PGVVYALNEH DEHWLCGGKE PLRVICVFNP PLTGQEVHDA
DGVYALPQAE TA