ID D0L077_HALNC Unreviewed; 211 AA.
AC D0L077;
DT 15-DEC-2009, integrated into UniProtKB/TrEMBL.
DT 15-DEC-2009, sequence version 1.
DT 27-MAR-2024, entry version 78.
DE RecName: Full=Octanoyltransferase {ECO:0000256|HAMAP-Rule:MF_00013, ECO:0000256|PIRNR:PIRNR016262};
DE EC=2.3.1.181 {ECO:0000256|HAMAP-Rule:MF_00013, ECO:0000256|PIRNR:PIRNR016262};
DE AltName: Full=Lipoate-protein ligase B {ECO:0000256|HAMAP-Rule:MF_00013};
DE AltName: Full=Lipoyl/octanoyl transferase {ECO:0000256|HAMAP-Rule:MF_00013};
DE AltName: Full=Octanoyl-[acyl-carrier-protein]-protein N-octanoyltransferase {ECO:0000256|HAMAP-Rule:MF_00013};
GN Name=lipB {ECO:0000256|HAMAP-Rule:MF_00013};
GN OrderedLocusNames=Hneap_1264 {ECO:0000313|EMBL:ACX96100.1};
OS Halothiobacillus neapolitanus (strain ATCC 23641 / c2) (Thiobacillus
OS neapolitanus).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Chromatiales;
OC Halothiobacillaceae; Halothiobacillus.
OX NCBI_TaxID=555778 {ECO:0000313|EMBL:ACX96100.1, ECO:0000313|Proteomes:UP000009102};
RN [1] {ECO:0000313|EMBL:ACX96100.1, ECO:0000313|Proteomes:UP000009102}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 23641 / c2 {ECO:0000313|Proteomes:UP000009102};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA Goodwin L., Pitluck S., Davenport K., Brettin T., Detter J.C., Han C.,
RA Tapia R., Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N.,
RA Kerfeld C., Cannon G., Heinhort S.;
RT "Complete sequence of Halothiobacillus neapolitanus c2.";
RL Submitted (OCT-2009) 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:0000256|ARBA:ARBA00024732, ECO:0000256|HAMAP-Rule:MF_00013,
CC ECO:0000256|PIRNR:PIRNR016262}.
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:0000256|HAMAP-Rule:MF_00013,
CC ECO:0000256|PIRNR:PIRNR016262};
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:0000256|ARBA:ARBA00004821, ECO:0000256|HAMAP-
CC Rule:MF_00013, ECO:0000256|PIRNR:PIRNR016262}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|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:0000256|HAMAP-Rule:MF_00013}.
CC -!- SIMILARITY: Belongs to the LipB family. {ECO:0000256|HAMAP-
CC Rule:MF_00013, ECO:0000256|PIRNR:PIRNR016262}.
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DR EMBL; CP001801; ACX96100.1; -; Genomic_DNA.
DR RefSeq; WP_012824134.1; NC_013422.1.
DR AlphaFoldDB; D0L077; -.
DR STRING; 555778.Hneap_1264; -.
DR KEGG; hna:Hneap_1264; -.
DR eggNOG; COG0321; Bacteria.
DR HOGENOM; CLU_035168_3_1_6; -.
DR OrthoDB; 9787061at2; -.
DR UniPathway; UPA00538; UER00592.
DR Proteomes; UP000009102; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0016874; F:ligase activity; IEA:UniProtKB-KW.
DR GO; GO:0033819; F:lipoyl(octanoyl) transferase activity; IEA:UniProtKB-EC.
DR GO; GO:0044249; P:cellular biosynthetic process; IEA:UniProt.
DR GO; GO:1901576; P:organic substance biosynthetic process; IEA:UniProt.
DR GO; GO:0036211; P:protein modification process; IEA:InterPro.
DR CDD; cd16444; LipB; 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 NCBIfam; TIGR00214; lipB; 1.
DR PANTHER; PTHR10993:SF7; LIPOYLTRANSFERASE 2, MITOCHONDRIAL-RELATED; 1.
DR PANTHER; PTHR10993; OCTANOYLTRANSFERASE; 1.
DR Pfam; PF03099; BPL_LplA_LipB; 1.
DR PIRSF; PIRSF016262; LPLase; 1.
DR SUPFAM; SSF55681; Class II aaRS and biotin synthetases; 1.
DR PROSITE; PS51733; BPL_LPL_CATALYTIC; 1.
DR PROSITE; PS01313; LIPB; 1.
PE 3: Inferred from homology;
KW Acyltransferase {ECO:0000256|ARBA:ARBA00023315, ECO:0000256|HAMAP-
KW Rule:MF_00013}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00013};
KW Ligase {ECO:0000313|EMBL:ACX96100.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000009102};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00013}.
FT DOMAIN 28..208
FT /note="BPL/LPL catalytic"
FT /evidence="ECO:0000259|PROSITE:PS51733"
FT ACT_SITE 165
FT /note="Acyl-thioester intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00013,
FT ECO:0000256|PIRSR:PIRSR016262-1"
FT BINDING 67..74
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00013,
FT ECO:0000256|PIRSR:PIRSR016262-2"
FT BINDING 134..136
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00013,
FT ECO:0000256|PIRSR:PIRSR016262-2"
FT BINDING 147..149
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00013,
FT ECO:0000256|PIRSR:PIRSR016262-2"
FT SITE 131
FT /note="Lowers pKa of active site Cys"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00013,
FT ECO:0000256|PIRSR:PIRSR016262-3"
SQ SEQUENCE 211 AA; 23320 MW; AF09E0C52976887F CRC64;
MSLIDYGIDC DYAVLLAKMQ SFTQSRQPHT EDEFWVLSHR PVFTQGLNGQ PRHVLDPGNI
PVVQTDRGGQ VTYHGPGQLV VYTLVDLKRA GVGVREWVTV LEQVVIEYLA TFEVHAERLS
GAPGVYVNGA KIAALGLKVR QGRCYHGLSL NLDVDLAPFA RINPCGMANL PVTDLRRCAK
IKTDELPDYR QAGRSIVLGL QKILLEQSPM A
//
