CAIB_PROMH
ID CAIB_PROMH Reviewed; 406 AA.
AC B4EY24;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 23-SEP-2008, sequence version 1.
DT 03-AUG-2022, entry version 87.
DE RecName: Full=L-carnitine CoA-transferase {ECO:0000255|HAMAP-Rule:MF_01050};
DE EC=2.8.3.21 {ECO:0000255|HAMAP-Rule:MF_01050};
DE AltName: Full=Crotonobetainyl-CoA:carnitine CoA-transferase {ECO:0000255|HAMAP-Rule:MF_01050};
GN Name=caiB {ECO:0000255|HAMAP-Rule:MF_01050}; OrderedLocusNames=PMI2656;
OS Proteus mirabilis (strain HI4320).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Morganellaceae; Proteus.
OX NCBI_TaxID=529507;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HI4320;
RX PubMed=18375554; DOI=10.1128/jb.01981-07;
RA Pearson M.M., Sebaihia M., Churcher C., Quail M.A., Seshasayee A.S.,
RA Luscombe N.M., Abdellah Z., Arrosmith C., Atkin B., Chillingworth T.,
RA Hauser H., Jagels K., Moule S., Mungall K., Norbertczak H.,
RA Rabbinowitsch E., Walker D., Whithead S., Thomson N.R., Rather P.N.,
RA Parkhill J., Mobley H.L.T.;
RT "Complete genome sequence of uropathogenic Proteus mirabilis, a master of
RT both adherence and motility.";
RL J. Bacteriol. 190:4027-4037(2008).
CC -!- FUNCTION: Catalyzes the reversible transfer of the CoA moiety from
CC gamma-butyrobetainyl-CoA to L-carnitine to generate L-carnitinyl-CoA
CC and gamma-butyrobetaine. Is also able to catalyze the reversible
CC transfer of the CoA moiety from gamma-butyrobetainyl-CoA or L-
CC carnitinyl-CoA to crotonobetaine to generate crotonobetainyl-CoA.
CC {ECO:0000255|HAMAP-Rule:MF_01050}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(R)-carnitine + crotonobetainyl-CoA = (R)-carnitinyl-CoA +
CC crotonobetaine; Xref=Rhea:RHEA:28526, ChEBI:CHEBI:16347,
CC ChEBI:CHEBI:17237, ChEBI:CHEBI:60932, ChEBI:CHEBI:60933; EC=2.8.3.21;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01050};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(R)-carnitine + gamma-butyrobetainyl-CoA = (R)-carnitinyl-CoA
CC + 4-(trimethylamino)butanoate; Xref=Rhea:RHEA:28418,
CC ChEBI:CHEBI:16244, ChEBI:CHEBI:16347, ChEBI:CHEBI:60932,
CC ChEBI:CHEBI:61513; EC=2.8.3.21; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01050};
CC -!- PATHWAY: Amine and polyamine metabolism; carnitine metabolism.
CC {ECO:0000255|HAMAP-Rule:MF_01050}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01050}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01050}.
CC -!- SIMILARITY: Belongs to the CoA-transferase III family. CaiB subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_01050}.
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DR EMBL; AM942759; CAR45234.1; -; Genomic_DNA.
DR RefSeq; WP_012368454.1; NC_010554.1.
DR AlphaFoldDB; B4EY24; -.
DR SMR; B4EY24; -.
DR STRING; 529507.PMI2656; -.
DR EnsemblBacteria; CAR45234; CAR45234; PMI2656.
DR GeneID; 6799994; -.
DR KEGG; pmr:PMI2656; -.
DR PATRIC; fig|529507.6.peg.2584; -.
DR eggNOG; COG1804; Bacteria.
DR HOGENOM; CLU_033975_2_0_6; -.
DR OMA; HRPGFGT; -.
DR UniPathway; UPA00117; -.
DR Proteomes; UP000008319; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008410; F:CoA-transferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0009437; P:carnitine metabolic process; IEA:UniProtKB-UniPathway.
DR Gene3D; 3.30.1540.10; -; 1.
DR Gene3D; 3.40.50.10540; -; 1.
DR HAMAP; MF_01050; CaiB; 1.
DR InterPro; IPR023452; CoA-Trfase_CaiB.
DR InterPro; IPR003673; CoA-Trfase_fam_III.
DR InterPro; IPR044855; CoA-Trfase_III_dom3_sf.
DR InterPro; IPR023606; CoA-Trfase_III_dom_1_sf.
DR Pfam; PF02515; CoA_transf_3; 1.
DR SUPFAM; SSF89796; SSF89796; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Reference proteome; Transferase.
FT CHAIN 1..406
FT /note="L-carnitine CoA-transferase"
FT /id="PRO_1000136254"
FT ACT_SITE 170
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01050"
FT BINDING 98
FT /ligand="CoA"
FT /ligand_id="ChEBI:CHEBI:57287"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01050"
FT BINDING 105
FT /ligand="CoA"
FT /ligand_id="ChEBI:CHEBI:57287"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01050"
SQ SEQUENCE 406 AA; 45383 MW; A997C42FD2B0D506 CRC64;
MTEHLPMPQF GPLAGVRVVF SGIEIAGPFA GQMFAEWGAE VIWIENVAWA DTIRVQPHYP
QLSRRNLHAL SLNIFKEEGR DAFLKLMETT DIFIEASKGP AFARRGITDE VLWEHNPKLV
IAHLSGFGQY GDPQYTNLPA YNTIAQAFSG YLIQNGDKDQ PMPAFPYTAD YFSGMTATTS
ALAALYKVQQ TGKGESIDIA MYEVMLRMGQ YFMMDYFNGG EICPRMTKGK DPYYAGCGLY
RCQDGYIVME VVGITQIEEI FKDIGLAHLL GTPEVPKGTQ LIHRINCPHG QLFEDKLDEW
LANQPITAVL KRLSELNIAS AKVLTIPELE GNPQYVARES ITQWKTMSGE TCKGPNIMPK
FKNNPGKIWR GMPAHGMDTN AILKNIGYSD EQIRELVDKG LAKIVE