ID   FADI_ECOSM              Reviewed;         436 AA.
AC   B1LME8;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 82.
DE   RecName: Full=3-ketoacyl-CoA thiolase {ECO:0000255|HAMAP-Rule:MF_01618};
DE            EC=2.3.1.16 {ECO:0000255|HAMAP-Rule:MF_01618};
DE   AltName: Full=ACSs {ECO:0000255|HAMAP-Rule:MF_01618};
DE   AltName: Full=Acetyl-CoA acyltransferase {ECO:0000255|HAMAP-Rule:MF_01618};
DE   AltName: Full=Acyl-CoA ligase {ECO:0000255|HAMAP-Rule:MF_01618};
DE   AltName: Full=Beta-ketothiolase {ECO:0000255|HAMAP-Rule:MF_01618};
DE   AltName: Full=Fatty acid oxidation complex subunit beta {ECO:0000255|HAMAP-Rule:MF_01618};
GN   Name=fadI {ECO:0000255|HAMAP-Rule:MF_01618};
GN   OrderedLocusNames=EcSMS35_2501;
OS   Escherichia coli (strain SMS-3-5 / SECEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=439855;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SMS-3-5 / SECEC;
RX   PubMed=18708504; DOI=10.1128/jb.00661-08;
RA   Fricke W.F., Wright M.S., Lindell A.H., Harkins D.M., Baker-Austin C.,
RA   Ravel J., Stepanauskas R.;
RT   "Insights into the environmental resistance gene pool from the genome
RT   sequence of the multidrug-resistant environmental isolate Escherichia coli
RT   SMS-3-5.";
RL   J. Bacteriol. 190:6779-6794(2008).
CC   -!- FUNCTION: Catalyzes the final step of fatty acid oxidation in which
CC       acetyl-CoA is released and the CoA ester of a fatty acid two carbons
CC       shorter is formed. {ECO:0000255|HAMAP-Rule:MF_01618}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=acetyl-CoA + an acyl-CoA = a 3-oxoacyl-CoA + CoA;
CC         Xref=Rhea:RHEA:21564, ChEBI:CHEBI:57287, ChEBI:CHEBI:57288,
CC         ChEBI:CHEBI:58342, ChEBI:CHEBI:90726; EC=2.3.1.16;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01618};
CC   -!- PATHWAY: Lipid metabolism; fatty acid beta-oxidation.
CC       {ECO:0000255|HAMAP-Rule:MF_01618}.
CC   -!- SUBUNIT: Heterotetramer of two alpha chains (FadJ) and two beta chains
CC       (FadI). {ECO:0000255|HAMAP-Rule:MF_01618}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01618}.
CC   -!- SIMILARITY: Belongs to the thiolase-like superfamily. Thiolase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01618}.
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DR   EMBL; CP000970; ACB19265.1; -; Genomic_DNA.
DR   RefSeq; WP_000531913.1; NC_010498.1.
DR   AlphaFoldDB; B1LME8; -.
DR   SMR; B1LME8; -.
DR   EnsemblBacteria; ACB19265; ACB19265; EcSMS35_2501.
DR   KEGG; ecm:EcSMS35_2501; -.
DR   HOGENOM; CLU_031026_2_0_6; -.
DR   OMA; MTAFPEP; -.
DR   UniPathway; UPA00659; -.
DR   Proteomes; UP000007011; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003988; F:acetyl-CoA C-acyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006635; P:fatty acid beta-oxidation; IEA:UniProtKB-UniPathway.
DR   CDD; cd00751; thiolase; 1.
DR   Gene3D; 3.40.47.10; -; 1.
DR   HAMAP; MF_01618; FadI; 1.
DR   InterPro; IPR012806; Ac-CoA_C-AcTrfase_FadI.
DR   InterPro; IPR002155; Thiolase.
DR   InterPro; IPR016039; Thiolase-like.
DR   InterPro; IPR020615; Thiolase_acyl_enz_int_AS.
DR   InterPro; IPR020610; Thiolase_AS.
DR   InterPro; IPR020617; Thiolase_C.
DR   InterPro; IPR020613; Thiolase_CS.
DR   InterPro; IPR020616; Thiolase_N.
DR   Pfam; PF02803; Thiolase_C; 1.
DR   Pfam; PF00108; Thiolase_N; 1.
DR   PIRSF; PIRSF000429; Ac-CoA_Ac_transf; 1.
DR   SUPFAM; SSF53901; SSF53901; 2.
DR   TIGRFAMs; TIGR01930; AcCoA-C-Actrans; 1.
DR   TIGRFAMs; TIGR02446; FadI; 1.
DR   PROSITE; PS00098; THIOLASE_1; 1.
DR   PROSITE; PS00737; THIOLASE_2; 1.
DR   PROSITE; PS00099; THIOLASE_3; 1.
PE   3: Inferred from homology;
KW   Acyltransferase; Cytoplasm; Fatty acid metabolism; Lipid degradation;
KW   Lipid metabolism; Transferase.
FT   CHAIN           1..436
FT                   /note="3-ketoacyl-CoA thiolase"
FT                   /id="PRO_1000185967"
FT   ACT_SITE        99
FT                   /note="Acyl-thioester intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01618"
FT   ACT_SITE        392
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01618"
FT   ACT_SITE        422
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01618"
SQ   SEQUENCE   436 AA;  46516 MW;  C2A6F825609410F4 CRC64;
     MGQVLPLVTR LGDRIAIVSG LRTPFARQAT AFHGIPAVDL GKMVVGELLA RSEIPAEVIE
     QLVFGQVVQM PEAPNIAREI VLGTGMNVHT DAYSVSRACA TSFQAIANVA ESLMAGTIRA
     GIAGGADSSS VLPIGVSKKL ARVLVDVNKA RTMSQRLKLF SRLRLRDLMP VPPAVAEYST
     GLRMGDTAEQ MAKTYGITRE QQDALAHRSH QRAAQAWSDG KLKEEVMTAF IPPYKQPLAE
     DNNIRGNSTL ADYAKLRPAF DRKHGTVTAA NSTPLTDGAA AVILMTESRA KELGLVPLGY
     LRSYAFTAID VWQDMLLGPA WSTPLALERA GLTMSDLTLI DMHEAFAAQT LANIQLLGSE
     RFARDVLGRA HATGEVDDSK FNVLGGSIAY GHPFAATGAR MITQTLHELR RRGGGFGLVT
     ACAAGGLGAA MVVEAE