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Database: UniProt
Entry: A0A238X089_9RHOB
LinkDB: A0A238X089_9RHOB
Original site: A0A238X089_9RHOB 
ID   A0A238X089_9RHOB        Unreviewed;       130 AA.
AC   A0A238X089;
DT   22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT   22-NOV-2017, sequence version 1.
DT   24-JAN-2024, entry version 15.
DE   RecName: Full=L-ectoine synthase {ECO:0000256|ARBA:ARBA00019707, ECO:0000256|HAMAP-Rule:MF_01255};
DE            EC=4.2.1.108 {ECO:0000256|ARBA:ARBA00013192, ECO:0000256|HAMAP-Rule:MF_01255};
DE   AltName: Full=N-acetyldiaminobutyrate dehydratase {ECO:0000256|ARBA:ARBA00033271, ECO:0000256|HAMAP-Rule:MF_01255};
GN   Name=ectC {ECO:0000256|HAMAP-Rule:MF_01255};
GN   ORFNames=SAMN06265370_108101 {ECO:0000313|EMBL:SNR51904.1};
OS   Puniceibacterium sediminis.
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC   Paracoccaceae; Puniceibacterium.
OX   NCBI_TaxID=1608407 {ECO:0000313|EMBL:SNR51904.1, ECO:0000313|Proteomes:UP000198417};
RN   [1] {ECO:0000313|EMBL:SNR51904.1, ECO:0000313|Proteomes:UP000198417}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 29052 {ECO:0000313|EMBL:SNR51904.1,
RC   ECO:0000313|Proteomes:UP000198417};
RA   Kim H.J., Triplett B.A.;
RL   Submitted (JUN-2017) 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:0000256|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;
CC         Evidence={ECO:0000256|ARBA:ARBA00000511, ECO:0000256|HAMAP-
CC         Rule:MF_01255};
CC   -!- PATHWAY: Amine and polyamine biosynthesis; ectoine biosynthesis; L-
CC       ectoine from L-aspartate 4-semialdehyde: step 3/3.
CC       {ECO:0000256|ARBA:ARBA00005181, ECO:0000256|HAMAP-Rule:MF_01255}.
CC   -!- SIMILARITY: Belongs to the ectoine synthase family.
CC       {ECO:0000256|ARBA:ARBA00009637, ECO:0000256|HAMAP-Rule:MF_01255}.
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DR   EMBL; FZNN01000008; SNR51904.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A238X089; -.
DR   OrthoDB; 9801830at2; -.
DR   UniPathway; UPA00067; UER00123.
DR   Proteomes; UP000198417; Unassembled WGS sequence.
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; Jelly Rolls; 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; -; 1.
DR   PANTHER; PTHR39289:SF1; L-ECTOINE SYNTHASE; 1.
DR   Pfam; PF06339; Ectoine_synth; 1.
DR   SUPFAM; SSF51182; RmlC-like cupins; 1.
PE   3: Inferred from homology;
KW   Lyase {ECO:0000256|HAMAP-Rule:MF_01255};
KW   Reference proteome {ECO:0000313|Proteomes:UP000198417}.
SQ   SEQUENCE   130 AA;  14569 MW;  2359DC759B0A151A CRC64;
     MIVRDVNKLK DTDRAVSDAD WTSVRMLLAD DKMGFSFHIT YLKAGSEHTF HYKNHFESVY
     CMSGKGSITD LATGETHNIY PGVMYALNLH DKHVLRAQEE LVMACCFNPP VTGTEVHQED
     GSYAAPEEVA
//
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