LIPB_METPP
ID LIPB_METPP Reviewed; 224 AA.
AC A2SCI8;
DT 26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 06-MAR-2007, sequence version 1.
DT 03-AUG-2022, entry version 87.
DE RecName: Full=Octanoyltransferase {ECO:0000255|HAMAP-Rule:MF_00013};
DE EC=2.3.1.181 {ECO:0000255|HAMAP-Rule:MF_00013};
DE AltName: Full=Lipoate-protein ligase B {ECO:0000255|HAMAP-Rule:MF_00013};
DE AltName: Full=Lipoyl/octanoyl transferase {ECO:0000255|HAMAP-Rule:MF_00013};
DE AltName: Full=Octanoyl-[acyl-carrier-protein]-protein N-octanoyltransferase {ECO:0000255|HAMAP-Rule:MF_00013};
GN Name=lipB {ECO:0000255|HAMAP-Rule:MF_00013}; OrderedLocusNames=Mpe_A0315;
OS Methylibium petroleiphilum (strain ATCC BAA-1232 / LMG 22953 / PM1).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales; Methylibium.
OX NCBI_TaxID=420662;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1232 / LMG 22953 / PM1;
RX PubMed=17158667; DOI=10.1128/jb.01259-06;
RA Kane S.R., Chakicherla A.Y., Chain P.S.G., Schmidt R., Shin M.W.,
RA Legler T.C., Scow K.M., Larimer F.W., Lucas S.M., Richardson P.M.,
RA Hristova K.R.;
RT "Whole-genome analysis of the methyl tert-butyl ether-degrading beta-
RT proteobacterium Methylibium petroleiphilum PM1.";
RL J. Bacteriol. 189:1931-1945(2007).
CC -!- FUNCTION: Catalyzes the transfer of endogenously produced octanoic acid
CC from octanoyl-acyl-carrier-protein onto the lipoyl domains of lipoate-
CC dependent enzymes. Lipoyl-ACP can also act as a substrate although
CC octanoyl-ACP is likely to be the physiological substrate.
CC {ECO:0000255|HAMAP-Rule:MF_00013}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-lysyl-[protein] + octanoyl-[ACP] = H(+) + holo-[ACP] + N(6)-
CC octanoyl-L-lysyl-[protein]; Xref=Rhea:RHEA:17665, Rhea:RHEA-
CC COMP:9636, Rhea:RHEA-COMP:9685, Rhea:RHEA-COMP:9752, Rhea:RHEA-
CC COMP:9928, ChEBI:CHEBI:15378, ChEBI:CHEBI:29969, ChEBI:CHEBI:64479,
CC ChEBI:CHEBI:78463, ChEBI:CHEBI:78809; EC=2.3.1.181;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00013};
CC -!- PATHWAY: Protein modification; protein lipoylation via endogenous
CC pathway; protein N(6)-(lipoyl)lysine from octanoyl-[acyl-carrier-
CC protein]: step 1/2. {ECO:0000255|HAMAP-Rule:MF_00013}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00013}.
CC -!- MISCELLANEOUS: In the reaction, the free carboxyl group of octanoic
CC acid is attached via an amide linkage to the epsilon-amino group of a
CC specific lysine residue of lipoyl domains of lipoate-dependent enzymes.
CC {ECO:0000255|HAMAP-Rule:MF_00013}.
CC -!- SIMILARITY: Belongs to the LipB family. {ECO:0000255|HAMAP-
CC Rule:MF_00013}.
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DR EMBL; CP000555; ABM93277.1; -; Genomic_DNA.
DR RefSeq; WP_011827916.1; NC_008825.1.
DR AlphaFoldDB; A2SCI8; -.
DR SMR; A2SCI8; -.
DR STRING; 420662.Mpe_A0315; -.
DR EnsemblBacteria; ABM93277; ABM93277; Mpe_A0315.
DR KEGG; mpt:Mpe_A0315; -.
DR eggNOG; COG0321; Bacteria.
DR HOGENOM; CLU_035168_3_1_4; -.
DR OMA; GEVTYHC; -.
DR OrthoDB; 1806796at2; -.
DR UniPathway; UPA00538; UER00592.
DR Proteomes; UP000000366; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0033819; F:lipoyl(octanoyl) transferase activity; IEA:UniProtKB-EC.
DR GO; GO:0009249; P:protein lipoylation; IEA:InterPro.
DR CDD; cd16444; LipB; 1.
DR Gene3D; 3.30.930.10; -; 1.
DR HAMAP; MF_00013; LipB; 1.
DR InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR InterPro; IPR004143; BPL_LPL_catalytic.
DR InterPro; IPR000544; Octanoyltransferase.
DR InterPro; IPR020605; Octanoyltransferase_CS.
DR PIRSF; PIRSF016262; LPLase; 1.
DR SUPFAM; SSF55681; SSF55681; 1.
DR TIGRFAMs; TIGR00214; lipB; 1.
DR PROSITE; PS51733; BPL_LPL_CATALYTIC; 1.
DR PROSITE; PS01313; LIPB; 1.
PE 3: Inferred from homology;
KW Acyltransferase; Cytoplasm; Reference proteome; Transferase.
FT CHAIN 1..224
FT /note="Octanoyltransferase"
FT /id="PRO_0000321646"
FT DOMAIN 29..224
FT /note="BPL/LPL catalytic"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01067"
FT ACT_SITE 188
FT /note="Acyl-thioester intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 68..75
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 157..159
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 170..172
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT SITE 154
FT /note="Lowers pKa of active site Cys"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
SQ SEQUENCE 224 AA; 24207 MW; 204FC292FBADE98D CRC64;
MAMQRRRLGR VDYATTFDAM RAFTETRTPG TPDELWLCEH PPVFTQGLAG KAEHVLDAGD
IPVVASNRGG QVTYHGPGQV VAYPLIDLQA LGIFVKEYVF RLEQAVIKTL EGYGVTGHRV
TGAPGIYVNL CDPFGHGALP GPPDPRDPWR GIGKIAALGI KVSRHCSYHG LALNVAMDLS
PYERINPCGY AGLRTVDLST IGVPVDPERA AADLGDRLES YLSP
