ID U2FWM1_9GAMM Unreviewed; 129 AA.
AC U2FWM1;
DT 13-NOV-2013, integrated into UniProtKB/TrEMBL.
DT 13-NOV-2013, sequence version 1.
DT 24-JAN-2024, entry version 31.
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=SSPSH_002341 {ECO:0000313|EMBL:ERJ18643.1};
OS Salinisphaera shabanensis E1L3A.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Salinisphaerales;
OC Salinisphaeraceae; Salinisphaera.
OX NCBI_TaxID=1033802 {ECO:0000313|EMBL:ERJ18643.1, ECO:0000313|Proteomes:UP000006242};
RN [1] {ECO:0000313|EMBL:ERJ18643.1, ECO:0000313|Proteomes:UP000006242}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=E1L3A {ECO:0000313|EMBL:ERJ18643.1,
RC ECO:0000313|Proteomes:UP000006242};
RX PubMed=21705588; DOI=10.1128/JB.05459-11;
RA Antunes A., Alam I., Bajic V.B., Stingl U.;
RT "Genome sequence of Salinisphaera shabanensis, a gammaproteobacterium from
RT the harsh, variable environment of the brine-seawater interface of the
RT Shaban Deep in the Red Sea.";
RL J. Bacteriol. 193:4555-4556(2011).
RN [2] {ECO:0000313|EMBL:ERJ18643.1, ECO:0000313|Proteomes:UP000006242}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=E1L3A {ECO:0000313|EMBL:ERJ18643.1,
RC ECO:0000313|Proteomes:UP000006242};
RX PubMed=24324765;
RA Alam I., Antunes A., Kamau A.A., Ba Alawi W., Kalkatawi M., Stingl U.,
RA Bajic V.B.;
RT "INDIGO - INtegrated Data Warehouse of MIcrobial GenOmes with Examples from
RT the Red Sea Extremophiles.";
RL PLoS ONE 8:E82210-E82210(2013).
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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:ERJ18643.1}.
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DR EMBL; AFNV02000016; ERJ18643.1; -; Genomic_DNA.
DR RefSeq; WP_006913435.1; NZ_AFNV02000016.1.
DR AlphaFoldDB; U2FWM1; -.
DR STRING; 1033802.SSPSH_002341; -.
DR eggNOG; COG1917; Bacteria.
DR OrthoDB; 9801830at2; -.
DR UniPathway; UPA00067; UER00123.
DR Proteomes; UP000006242; 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, ECO:0000313|EMBL:ERJ18643.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000006242}.
SQ SEQUENCE 129 AA; 14694 MW; 1C56A27D0403B1F1 CRC64;
MKIVRTEDLR GTDREVISDD GWTSVRWLLK SDGMGFSFHE TTFPPGLEFD MWYKHHLEAV
FCYKGEGTLV NRDTGEEHKI EPGTVYALDN HDKHTLKAKT ELKLVCAFNP PVTGRETHDA
DGAYVPPED
//
