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ECTC_ALIFM
ID   ECTC_ALIFM              Reviewed;         128 AA.
AC   B5EVR2;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   14-OCT-2008, sequence version 1.
DT   25-MAY-2022, entry version 62.
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};
GN   OrderedLocusNames=VFMJ11_A1235;
OS   Aliivibrio fischeri (strain MJ11) (Vibrio fischeri).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Aliivibrio.
OX   NCBI_TaxID=388396;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MJ11;
RA   Mandel M.J., Stabb E.V., Ruby E.G., Ferriera S., Johnson J., Kravitz S.,
RA   Beeson K., Sutton G., Rogers Y.-H., Friedman R., Frazier M., Venter J.C.;
RT   "Complete sequence of Vibrio fischeri strain MJ11.";
RL   Submitted (AUG-2008) to the EMBL/GenBank/DDBJ databases.
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; CP001133; ACH63958.1; -; Genomic_DNA.
DR   RefSeq; WP_012535114.1; NC_011186.1.
DR   AlphaFoldDB; B5EVR2; -.
DR   SMR; B5EVR2; -.
DR   EnsemblBacteria; ACH63958; ACH63958; VFMJ11_A1235.
DR   KEGG; vfm:VFMJ11_A1235; -.
DR   HOGENOM; CLU_154525_0_0_6; -.
DR   OMA; CVFNPPI; -.
DR   UniPathway; UPA00067; UER00123.
DR   Proteomes; UP000001857; Chromosome II.
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.
FT   CHAIN           1..128
FT                   /note="L-ectoine synthase"
FT                   /id="PRO_1000139973"
SQ   SEQUENCE   128 AA;  14860 MW;  8D235AB9DA54BBD4 CRC64;
     MIVRTLDECR DSERRVASET WESVRMLLKN DNMGFSFHIT TIYQDTETHI HYKNHLESVY
     CMSGEGEIEV IGGETYPIKP GTLYILDKHD EHYLRAYKDK EMVMACVFNP PITGTEVHDE
     NGVYPVLD
 
 
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