ID   LIPB_MYCMM              Reviewed;         241 AA.
AC   B2HHL3;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-JUN-2008, sequence version 1.
DT   03-AUG-2022, entry version 72.
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=MMAR_3285;
OS   Mycobacterium marinum (strain ATCC BAA-535 / M).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium.
OX   NCBI_TaxID=216594;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-535 / M;
RX   PubMed=18403782; DOI=10.1101/gr.075069.107;
RA   Stinear T.P., Seemann T., Harrison P.F., Jenkin G.A., Davies J.K.,
RA   Johnson P.D., Abdellah Z., Arrowsmith C., Chillingworth T., Churcher C.,
RA   Clarke K., Cronin A., Davis P., Goodhead I., Holroyd N., Jagels K.,
RA   Lord A., Moule S., Mungall K., Norbertczak H., Quail M.A.,
RA   Rabbinowitsch E., Walker D., White B., Whitehead S., Small P.L., Brosch R.,
RA   Ramakrishnan L., Fischbach M.A., Parkhill J., Cole S.T.;
RT   "Insights from the complete genome sequence of Mycobacterium marinum on the
RT   evolution of Mycobacterium tuberculosis.";
RL   Genome Res. 18:729-741(2008).
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; CP000854; ACC41711.1; -; Genomic_DNA.
DR   RefSeq; WP_012394941.1; NC_010612.1.
DR   AlphaFoldDB; B2HHL3; -.
DR   SMR; B2HHL3; -.
DR   STRING; 216594.MMAR_3285; -.
DR   EnsemblBacteria; ACC41711; ACC41711; MMAR_3285.
DR   KEGG; mmi:MMAR_3285; -.
DR   eggNOG; COG0321; Bacteria.
DR   HOGENOM; CLU_035168_2_1_11; -.
DR   OMA; GEVTYHC; -.
DR   OrthoDB; 1806796at2; -.
DR   UniPathway; UPA00538; UER00592.
DR   Proteomes; UP000001190; 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..241
FT                   /note="Octanoyltransferase"
FT                   /id="PRO_1000089464"
FT   DOMAIN          38..227
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         85..92
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   241 AA;  25111 MW;  EF43EAA1C7675F38 CRC64;
     MTGSIRSSTA GIDVRQLGSV DYQTAWQMQR DLADARVAGG PDTLLLLQHP AVYTAGRRTE
     PHERPGPVFA GAAGAEAIDV VDTDRGGKIT WHGPGQLVGY PIIGLAQPLD VVNYVRRLEE
     SLIKVCLDLG LETGRVEGRS GVWIPAGSGR PERKIAAIGV RVSRATTLHG FALNCDCDLA
     AFTAIVPCGI SDAGVTSLSA ELGRTVGVEE VRGAVADAVC NALDGALPVR DHPGARVASS
     T