LIPB_ACICJ
ID LIPB_ACICJ Reviewed; 228 AA.
AC A5G0V3;
DT 26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 12-JUN-2007, sequence version 1.
DT 03-AUG-2022, entry version 83.
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=Acry_2290;
OS Acidiphilium cryptum (strain JF-5).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC Acetobacteraceae; Acidiphilium.
OX NCBI_TaxID=349163;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JF-5;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Sims D., Brettin T., Bruce D., Han C., Schmutz J., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Kim E., Magnuson T., Richardson P.;
RT "Complete sequence of chromosome of Acidiphilium cryptum JF-5.";
RL Submitted (MAY-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000697; ABQ31485.1; -; Genomic_DNA.
DR RefSeq; WP_012039940.1; NC_009484.1.
DR AlphaFoldDB; A5G0V3; -.
DR SMR; A5G0V3; -.
DR STRING; 349163.Acry_2290; -.
DR EnsemblBacteria; ABQ31485; ABQ31485; Acry_2290.
DR KEGG; acr:Acry_2290; -.
DR eggNOG; COG0321; Bacteria.
DR HOGENOM; CLU_035168_3_0_5; -.
DR OMA; GEVTYHC; -.
DR OrthoDB; 1806796at2; -.
DR UniPathway; UPA00538; UER00592.
DR Proteomes; UP000000245; 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..228
FT /note="Octanoyltransferase"
FT /id="PRO_0000321615"
FT DOMAIN 40..225
FT /note="BPL/LPL catalytic"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01067"
FT ACT_SITE 187
FT /note="Acyl-thioester intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 79..86
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 156..158
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 169..171
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT SITE 153
FT /note="Lowers pKa of active site Cys"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
SQ SEQUENCE 228 AA; 24113 MW; C18877D31DDB4D8B CRC64;
MDRAVSTTTN AVEWAKAPGL TDYPSALAEM QARAAAIRAG EEAERVWLVE HPPLYTAGTS
ARDADLLHPG DAQVFRSGRG GQWTYHGPGQ RVAYVMLDLS RPHGRVPARD VRGFVAGLEA
WLIDTLAGFG VRGELREGRV GIWVANPLGG ESKIAAIGVR VSRWVSYHGI ALNVAPDLGR
FGGIVPCGIS EHGVTSLAAL GVAATLDAVD AALARSFERV FDAAPQPV
