THEM4_XENLA
ID THEM4_XENLA Reviewed; 222 AA.
AC Q6GLK2;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 15-JAN-2008, sequence version 2.
DT 03-AUG-2022, entry version 56.
DE RecName: Full=Acyl-coenzyme A thioesterase THEM4;
DE Short=Acyl-CoA thioesterase THEM4;
DE EC=3.1.2.2 {ECO:0000250|UniProtKB:Q5T1C6};
DE AltName: Full=Thioesterase superfamily member 4;
DE Flags: Precursor;
GN Name=them4;
OS Xenopus laevis (African clawed frog).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC Batrachia; Anura; Pipoidea; Pipidae; Xenopodinae; Xenopus; Xenopus.
OX NCBI_TaxID=8355;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Brain;
RG NIH - Xenopus Gene Collection (XGC) project;
RL Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Has acyl-CoA thioesterase activity towards medium and long-
CC chain (C14 to C18) fatty acyl-CoA substrates, and probably plays a role
CC in mitochondrial fatty acid metabolism. {ECO:0000250|UniProtKB:Q5T1C6}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + hexadecanoyl-CoA = CoA + H(+) + hexadecanoate;
CC Xref=Rhea:RHEA:16645, ChEBI:CHEBI:7896, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57287, ChEBI:CHEBI:57379; EC=3.1.2.2;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:16646;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + octanoyl-CoA = CoA + H(+) + octanoate;
CC Xref=Rhea:RHEA:30143, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:25646, ChEBI:CHEBI:57287, ChEBI:CHEBI:57386;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:30144;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=decanoyl-CoA + H2O = CoA + decanoate + H(+);
CC Xref=Rhea:RHEA:40059, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:27689, ChEBI:CHEBI:57287, ChEBI:CHEBI:61430;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:40060;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=dodecanoyl-CoA + H2O = CoA + dodecanoate + H(+);
CC Xref=Rhea:RHEA:30135, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:18262, ChEBI:CHEBI:57287, ChEBI:CHEBI:57375;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:30136;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + tetradecanoyl-CoA = CoA + H(+) + tetradecanoate;
CC Xref=Rhea:RHEA:40119, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:30807, ChEBI:CHEBI:57287, ChEBI:CHEBI:57385;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:40120;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(9Z)-octadecenoyl-CoA + H2O = (9Z)-octadecenoate + CoA + H(+);
CC Xref=Rhea:RHEA:40139, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:30823, ChEBI:CHEBI:57287, ChEBI:CHEBI:57387;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:40140;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(5Z,8Z,11Z,14Z)-eicosatetraenoyl-CoA + H2O = (5Z,8Z,11Z,14Z)-
CC eicosatetraenoate + CoA + H(+); Xref=Rhea:RHEA:40151,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:32395,
CC ChEBI:CHEBI:57287, ChEBI:CHEBI:57368;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:40152;
CC Evidence={ECO:0000250|UniProtKB:Q5T1C6};
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250|UniProtKB:Q5T1C6}.
CC Cell projection, ruffle membrane {ECO:0000250|UniProtKB:Q5T1C6}.
CC Cytoplasm {ECO:0000250|UniProtKB:Q5T1C6}. Mitochondrion
CC {ECO:0000250|UniProtKB:Q5T1C6}. Mitochondrion inner membrane
CC {ECO:0000250|UniProtKB:Q5T1C6}; Peripheral membrane protein
CC {ECO:0000250|UniProtKB:Q5T1C6}. Mitochondrion intermembrane space
CC {ECO:0000250|UniProtKB:Q5T1C6}. Note=Released from the mitochondria
CC into the cytosol in response to apoptotic stimuli.
CC {ECO:0000250|UniProtKB:Q5T1C6}.
CC -!- SIMILARITY: Belongs to the THEM4/THEM5 thioesterase family.
CC {ECO:0000305}.
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DR EMBL; BC074478; AAH74478.1; -; mRNA.
DR AlphaFoldDB; Q6GLK2; -.
DR SMR; Q6GLK2; -.
DR Proteomes; UP000186698; Genome assembly.
DR GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0005758; C:mitochondrial intermembrane space; IEA:UniProtKB-SubCell.
DR GO; GO:0032587; C:ruffle membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0102991; F:myristoyl-CoA hydrolase activity; IEA:UniProtKB-EC.
DR GO; GO:0016290; F:palmitoyl-CoA hydrolase activity; IEA:UniProtKB-EC.
DR GO; GO:0006915; P:apoptotic process; IEA:UniProtKB-KW.
DR GO; GO:0006631; P:fatty acid metabolic process; IEA:UniProtKB-KW.
DR InterPro; IPR029069; HotDog_dom_sf.
DR InterPro; IPR006683; Thioestr_dom.
DR Pfam; PF03061; 4HBT; 1.
DR SUPFAM; SSF54637; SSF54637; 1.
PE 2: Evidence at transcript level;
KW Apoptosis; Cell membrane; Cell projection; Cytoplasm;
KW Fatty acid metabolism; Hydrolase; Lipid metabolism; Membrane;
KW Mitochondrion; Mitochondrion inner membrane; Reference proteome;
KW Transit peptide.
FT TRANSIT 1..34
FT /note="Mitochondrion"
FT /evidence="ECO:0000255"
FT CHAIN 35..222
FT /note="Acyl-coenzyme A thioesterase THEM4"
FT /id="PRO_0000314182"
FT ACT_SITE 148
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000250|UniProtKB:Q5T1C6"
FT BINDING 172
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 193..194
FT /ligand="substrate"
FT /evidence="ECO:0000250"
SQ SEQUENCE 222 AA; 24981 MW; C25F6603CC915D0F CRC64;
MLRSCARLIY KGITLPRQQQ NLHSLPCSYT APKFYSQEAP RDYGVPNTTW SKNLLDLYNK
YMEGSKSGTW KRIPSYNATV HYIKGVPPVR NREKRLFTRN LDQDGVGFEY CMFYNKAERR
MVCLFQPGPY LEGPPGFTHG GCIATMIDST TGAGAVYLCG GVMTANLTVD YKNPIPLGCV
VIIDSKVEKI EGRKVFTSCQ IRSHDDSMLH TEATALFIKL CP
