ID FADI_IDILO Reviewed; 436 AA.
AC Q5QXN5;
DT 06-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT 04-JAN-2005, sequence version 1.
DT 27-MAR-2024, entry version 114.
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}; OrderedLocusNames=IL0994;
OS Idiomarina loihiensis (strain ATCC BAA-735 / DSM 15497 / L2-TR).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC Idiomarinaceae; Idiomarina.
OX NCBI_TaxID=283942;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-735 / DSM 15497 / L2-TR;
RX PubMed=15596722; DOI=10.1073/pnas.0407638102;
RA Hou S., Saw J.H., Lee K.S., Freitas T.A., Belisle C., Kawarabayasi Y.,
RA Donachie S.P., Pikina A., Galperin M.Y., Koonin E.V., Makarova K.S.,
RA Omelchenko M.V., Sorokin A., Wolf Y.I., Li Q.X., Keum Y.S., Campbell S.,
RA Denery J., Aizawa S., Shibata S., Malahoff A., Alam M.;
RT "Genome sequence of the deep-sea gamma-proteobacterium Idiomarina
RT loihiensis reveals amino acid fermentation as a source of carbon and
RT energy.";
RL Proc. Natl. Acad. Sci. U.S.A. 101:18036-18041(2004).
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; AE017340; AAV81834.1; -; Genomic_DNA.
DR RefSeq; WP_011234245.1; NC_006512.1.
DR AlphaFoldDB; Q5QXN5; -.
DR SMR; Q5QXN5; -.
DR STRING; 283942.IL0994; -.
DR KEGG; ilo:IL0994; -.
DR eggNOG; COG0183; Bacteria.
DR HOGENOM; CLU_031026_2_0_6; -.
DR OrthoDB; 8951704at2; -.
DR UniPathway; UPA00659; -.
DR Proteomes; UP000001171; 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; IPR020610; Thiolase_AS.
DR InterPro; IPR020617; Thiolase_C.
DR InterPro; IPR020613; Thiolase_CS.
DR InterPro; IPR020616; Thiolase_N.
DR NCBIfam; TIGR01930; AcCoA-C-Actrans; 1.
DR NCBIfam; TIGR02446; FadI; 1.
DR PANTHER; PTHR42689; ACETYL-COA ACYLTRANSFERASE FADA2 (3-KETOACYL-COA THIOLASE) (BETA-KETOTHIOLASE)-RELATED; 1.
DR PANTHER; PTHR42689:SF1; ACETYL-COA ACYLTRANSFERASE FADA2 (3-KETOACYL-COA THIOLASE) (BETA-KETOTHIOLASE)-RELATED; 1.
DR Pfam; PF02803; Thiolase_C; 1.
DR Pfam; PF00108; Thiolase_N; 1.
DR PIRSF; PIRSF000429; Ac-CoA_Ac_transf; 1.
DR SUPFAM; SSF53901; Thiolase-like; 2.
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; Reference proteome; Transferase.
FT CHAIN 1..436
FT /note="3-ketoacyl-CoA thiolase"
FT /id="PRO_0000206440"
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; 46685 MW; A765996563CA447D CRC64;
MTAAQRLLTV NGERIAFVAG IRTPFAKQAT DFHGIPAVDL GKMVVQELVN KTGIDGDWVE
QLVFGQVVQM PEAPNIAREI VLGTSLPVGT DAYSVSRACA TSFQSAVNIA EAMVAGHIRG
GIAGGADSSS VLPIGVSKRM ARALVDLNKA KTLGQRFSIL KRLGFKDLLP VPPAVAEYST
GLSMGQTAEQ MAKTHNISRE DQDELTVRSH QKAHAAWEAG WLSDEVMTAY PEPYKKHLSR
DNNIRGDSQI EKLAKLKPVF DRKHGSVTAA NSTPLTDGAS AVMMMTESRA KELGLPVLGY
LRSYAFAALQ VEEDMLMGPS YSTPVALDRA GMSLNDLDLI DMHEAFAAQT LANMKMFASD
KFAQEKLGRD KAIGEIDMDK FNVLGGSIAY GHPFAATGTR MITQTLNELR RRGGGVGLTT
ACAAGGLGAA MIVETE
//
