ID   FADB_PSE14              Reviewed;         721 AA.
AC   Q48GW3;
DT   06-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2005, sequence version 1.
DT   27-MAR-2024, entry version 114.
DE   RecName: Full=Fatty acid oxidation complex subunit alpha {ECO:0000255|HAMAP-Rule:MF_01621};
DE   Includes:
DE     RecName: Full=Enoyl-CoA hydratase/Delta(3)-cis-Delta(2)-trans-enoyl-CoA isomerase/3-hydroxybutyryl-CoA epimerase {ECO:0000255|HAMAP-Rule:MF_01621};
DE              EC=4.2.1.17 {ECO:0000255|HAMAP-Rule:MF_01621};
DE              EC=5.1.2.3 {ECO:0000255|HAMAP-Rule:MF_01621};
DE              EC=5.3.3.8 {ECO:0000255|HAMAP-Rule:MF_01621};
DE   Includes:
DE     RecName: Full=3-hydroxyacyl-CoA dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01621};
DE              EC=1.1.1.35 {ECO:0000255|HAMAP-Rule:MF_01621};
GN   Name=fadB {ECO:0000255|HAMAP-Rule:MF_01621};
GN   OrderedLocusNames=PSPPH_3210;
OS   Pseudomonas savastanoi pv. phaseolicola (strain 1448A / Race 6)
OS   (Pseudomonas syringae pv. phaseolicola (strain 1448A / Race 6)).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=264730;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=1448A / Race 6;
RX   PubMed=16159782; DOI=10.1128/jb.187.18.6488-6498.2005;
RA   Joardar V., Lindeberg M., Jackson R.W., Selengut J., Dodson R.,
RA   Brinkac L.M., Daugherty S.C., DeBoy R.T., Durkin A.S., Gwinn Giglio M.,
RA   Madupu R., Nelson W.C., Rosovitz M.J., Sullivan S.A., Crabtree J.,
RA   Creasy T., Davidsen T.M., Haft D.H., Zafar N., Zhou L., Halpin R.,
RA   Holley T., Khouri H.M., Feldblyum T.V., White O., Fraser C.M.,
RA   Chatterjee A.K., Cartinhour S., Schneider D., Mansfield J.W., Collmer A.,
RA   Buell R.;
RT   "Whole-genome sequence analysis of Pseudomonas syringae pv. phaseolicola
RT   1448A reveals divergence among pathovars in genes involved in virulence and
RT   transposition.";
RL   J. Bacteriol. 187:6488-6498(2005).
CC   -!- FUNCTION: Involved in the aerobic and anaerobic degradation of long-
CC       chain fatty acids via beta-oxidation cycle. Catalyzes the formation of
CC       3-oxoacyl-CoA from enoyl-CoA via L-3-hydroxyacyl-CoA. It can also use
CC       D-3-hydroxyacyl-CoA and cis-3-enoyl-CoA as substrate.
CC       {ECO:0000255|HAMAP-Rule:MF_01621}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a (3S)-3-hydroxyacyl-CoA + NAD(+) = a 3-oxoacyl-CoA + H(+) +
CC         NADH; Xref=Rhea:RHEA:22432, ChEBI:CHEBI:15378, ChEBI:CHEBI:57318,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:90726; EC=1.1.1.35;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01621};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a (3S)-3-hydroxyacyl-CoA = a (2E)-enoyl-CoA + H2O;
CC         Xref=Rhea:RHEA:16105, ChEBI:CHEBI:15377, ChEBI:CHEBI:57318,
CC         ChEBI:CHEBI:58856; EC=4.2.1.17; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01621};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a 4-saturated-(3S)-3-hydroxyacyl-CoA = a (3E)-enoyl-CoA + H2O;
CC         Xref=Rhea:RHEA:20724, ChEBI:CHEBI:15377, ChEBI:CHEBI:58521,
CC         ChEBI:CHEBI:137480; EC=4.2.1.17; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01621};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(3S)-3-hydroxybutanoyl-CoA = (3R)-3-hydroxybutanoyl-CoA;
CC         Xref=Rhea:RHEA:21760, ChEBI:CHEBI:57315, ChEBI:CHEBI:57316;
CC         EC=5.1.2.3; Evidence={ECO:0000255|HAMAP-Rule:MF_01621};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a (3Z)-enoyl-CoA = a 4-saturated (2E)-enoyl-CoA;
CC         Xref=Rhea:RHEA:45900, ChEBI:CHEBI:85097, ChEBI:CHEBI:85489;
CC         EC=5.3.3.8; Evidence={ECO:0000255|HAMAP-Rule:MF_01621};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a (3E)-enoyl-CoA = a 4-saturated (2E)-enoyl-CoA;
CC         Xref=Rhea:RHEA:45228, ChEBI:CHEBI:58521, ChEBI:CHEBI:85097;
CC         EC=5.3.3.8; Evidence={ECO:0000255|HAMAP-Rule:MF_01621};
CC   -!- PATHWAY: Lipid metabolism; fatty acid beta-oxidation.
CC       {ECO:0000255|HAMAP-Rule:MF_01621}.
CC   -!- SUBUNIT: Heterotetramer of two alpha chains (FadB) and two beta chains
CC       (FadA). {ECO:0000255|HAMAP-Rule:MF_01621}.
CC   -!- SIMILARITY: In the N-terminal section; belongs to the enoyl-CoA
CC       hydratase/isomerase family. {ECO:0000255|HAMAP-Rule:MF_01621}.
CC   -!- SIMILARITY: In the C-terminal section; belongs to the 3-hydroxyacyl-CoA
CC       dehydrogenase family. {ECO:0000255|HAMAP-Rule:MF_01621}.
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DR   EMBL; CP000058; AAZ34330.1; -; Genomic_DNA.
DR   RefSeq; WP_004665750.1; NC_005773.3.
DR   AlphaFoldDB; Q48GW3; -.
DR   SMR; Q48GW3; -.
DR   KEGG; psp:PSPPH_3210; -.
DR   eggNOG; COG1024; Bacteria.
DR   eggNOG; COG1250; Bacteria.
DR   HOGENOM; CLU_009834_16_3_6; -.
DR   UniPathway; UPA00659; -.
DR   Proteomes; UP000000551; Chromosome.
DR   GO; GO:0036125; C:fatty acid beta-oxidation multienzyme complex; IEA:InterPro.
DR   GO; GO:0003857; F:3-hydroxyacyl-CoA dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008692; F:3-hydroxybutyryl-CoA epimerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0004165; F:delta(3)-delta(2)-enoyl-CoA isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0004300; F:enoyl-CoA hydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0070403; F:NAD+ binding; IEA:InterPro.
DR   GO; GO:0006635; P:fatty acid beta-oxidation; IEA:UniProtKB-UniPathway.
DR   CDD; cd06558; crotonase-like; 1.
DR   Gene3D; 1.10.1040.50; -; 1.
DR   Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR   HAMAP; MF_01621; FadB; 1.
DR   InterPro; IPR006180; 3-OHacyl-CoA_DH_CS.
DR   InterPro; IPR006176; 3-OHacyl-CoA_DH_NAD-bd.
DR   InterPro; IPR006108; 3HC_DH_C.
DR   InterPro; IPR008927; 6-PGluconate_DH-like_C_sf.
DR   InterPro; IPR029045; ClpP/crotonase-like_dom_sf.
DR   InterPro; IPR001753; Enoyl-CoA_hydra/iso.
DR   InterPro; IPR012799; FadB.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   NCBIfam; TIGR02437; FadB; 1.
DR   PANTHER; PTHR43612:SF8; FATTY ACID OXIDATION COMPLEX SUBUNIT ALPHA; 1.
DR   PANTHER; PTHR43612; TRIFUNCTIONAL ENZYME SUBUNIT ALPHA; 1.
DR   Pfam; PF00725; 3HCDH; 1.
DR   Pfam; PF02737; 3HCDH_N; 1.
DR   Pfam; PF00378; ECH_1; 1.
DR   SUPFAM; SSF48179; 6-phosphogluconate dehydrogenase C-terminal domain-like; 2.
DR   SUPFAM; SSF52096; ClpP/crotonase; 1.
DR   SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1.
DR   PROSITE; PS00067; 3HCDH; 1.
PE   3: Inferred from homology;
KW   Fatty acid metabolism; Isomerase; Lipid degradation; Lipid metabolism;
KW   Lyase; Multifunctional enzyme; NAD; Oxidoreductase.
FT   CHAIN           1..721
FT                   /note="Fatty acid oxidation complex subunit alpha"
FT                   /id="PRO_0000109280"
FT   REGION          1..190
FT                   /note="Enoyl-CoA hydratase/isomerase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   REGION          312..721
FT                   /note="3-hydroxyacyl-CoA dehydrogenase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   ACT_SITE        451
FT                   /note="For 3-hydroxyacyl-CoA dehydrogenase activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   BINDING         297
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   BINDING         325
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   BINDING         344
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   BINDING         401..403
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   BINDING         408
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   BINDING         430
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   BINDING         454
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   BINDING         501
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   BINDING         660
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   SITE            120
FT                   /note="Important for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
FT   SITE            140
FT                   /note="Important for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01621"
SQ   SEQUENCE   721 AA;  77630 MW;  C66C6B34D3EFFC89 CRC64;
     MIYEGKAITV KALESGIVEL NFDLKGESVN KFNRLTLNEL RQAVDAIKAD ASVKGVIVSS
     GKDVFIVGAD ITEFVDNFKL PEAELVAGNL QANRIFSDFE DLGVPTVVAI NGIALGGGLE
     MCLAADYRVI SSSARIGLPE VKLGLYPGFG GTVRLPRIIG ADNAIEWIAS GKESSAEDAL
     KVGAVDAVVA PEKLQAAALD LIQRAISGEF DYKAKRQPKL DKLKLNAIEQ MMAFETAKGF
     VAGQAGPNYP APVEAIKTIQ KAANFGRDKA LEIEAAGFVK MAKTSAAQSL IGLFLNDQEL
     KKKAKGYDAV AKDVKQAAVL GAGIMGGGIA YQSAVKGTPI LMKDIREEAI QLGLNEASKL
     LGGRLEKGRL TAAKMAEALN AIRPTLSYGD FGNVDLVVEA VVENPKVKQA VLAEVEANVG
     EHTILASNTS TISISLLAKA LKRPENFVGM HFFNPVHMMP LVEVIRGEKS SEEAVATTVA
     YARKMGKNPI VVNDCPGFLV NRVLFPYFGG FARLVSAGVD FVRIDKVMEK FGWPMGPAYL
     MDVVGIDTGH HGRDVMAEGF PDRMKDDRRS VVDALYEAKR LGQKNGKGFY AYETDKKGKP
     KKVNDPAVLD VLKPIVYEQR EVSDEDIINW MMIPLCLETV RCLEDGIVET AAEADMGLIY
     GIGFPPFRGG ALRYIDSIGV AEFVALADQY AELGALYQPT AKLREMASKG QSFFGQASSE
     E
//