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