ID   LIPM_EXIS2              Reviewed;         276 AA.
AC   B1YLP0;
DT   28-JUN-2011, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=Octanoyltransferase LipM {ECO:0000255|HAMAP-Rule:MF_02118};
DE            EC=2.3.1.181 {ECO:0000255|HAMAP-Rule:MF_02118};
DE   AltName: Full=Octanoyl-[acyl-carrier-protein]:[GcvH] N-octanoyltransferase {ECO:0000255|HAMAP-Rule:MF_02118};
GN   Name=lipM {ECO:0000255|HAMAP-Rule:MF_02118}; OrderedLocusNames=Exig_0893;
OS   Exiguobacterium sibiricum (strain DSM 17290 / CIP 109462 / JCM 13490 /
OS   255-15).
OC   Bacteria; Firmicutes; Bacilli; Bacillales;
OC   Bacillales Family XII. Incertae Sedis; Exiguobacterium.
OX   NCBI_TaxID=262543;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 17290 / CIP 109462 / JCM 13490 / 255-15;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Kiss H., Chertkov O., Monk C.,
RA   Brettin T., Detter J.C., Han C., Kuske C.R., Schmutz J., Larimer F.,
RA   Land M., Hauser L., Kyrpides N., Mikhailova N., Vishnivetskaya T.,
RA   Rodrigues D.F., Gilichinsky D., Tiedje J., Richardson P.;
RT   "Complete sequence of chromosome of Exiguobacterium sibiricum 255-15.";
RL   Submitted (APR-2008) 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 domain of GcvH, an
CC       intermediate carrier during protein lipoylation. {ECO:0000255|HAMAP-
CC       Rule:MF_02118}.
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_02118};
CC   -!- PATHWAY: Protein modification; protein lipoylation via endogenous
CC       pathway; protein N(6)-(lipoyl)lysine from octanoyl-[acyl-carrier-
CC       protein]. {ECO:0000255|HAMAP-Rule:MF_02118}.
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_02118}.
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       The reaction proceeds via an octanoyl-thioester enzyme intermediate.
CC       {ECO:0000255|HAMAP-Rule:MF_02118}.
CC   -!- SIMILARITY: Belongs to the octanoyltransferase LipM family.
CC       {ECO:0000255|HAMAP-Rule:MF_02118}.
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DR   EMBL; CP001022; ACB60373.1; -; Genomic_DNA.
DR   AlphaFoldDB; B1YLP0; -.
DR   SMR; B1YLP0; -.
DR   STRING; 262543.Exig_0893; -.
DR   EnsemblBacteria; ACB60373; ACB60373; Exig_0893.
DR   KEGG; esi:Exig_0893; -.
DR   eggNOG; COG0095; Bacteria.
DR   HOGENOM; CLU_022986_5_0_9; -.
DR   OMA; YAYLDDW; -.
DR   Proteomes; UP000001681; Chromosome.
DR   GO; GO:0033819; F:lipoyl(octanoyl) transferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0009107; P:lipoate biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0009249; P:protein lipoylation; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.930.10; -; 1.
DR   HAMAP; MF_02118; LipM; 1.
DR   InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR   InterPro; IPR004143; BPL_LPL_catalytic.
DR   InterPro; IPR024898; LipM.
DR   Pfam; PF03099; BPL_LplA_LipB; 1.
DR   SUPFAM; SSF55681; SSF55681; 1.
DR   PROSITE; PS51733; BPL_LPL_CATALYTIC; 1.
PE   3: Inferred from homology;
KW   Acyltransferase; Reference proteome; Transferase.
FT   CHAIN           1..276
FT                   /note="Octanoyltransferase LipM"
FT                   /id="PRO_0000410856"
FT   DOMAIN          32..247
FT                   /note="BPL/LPL catalytic"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01067"
FT   ACT_SITE        149
FT                   /note="Acyl-thioester intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02118"
FT   SITE            164
FT                   /note="Lowers pKa of active site Cys"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02118"
SQ   SEQUENCE   276 AA;  31657 MW;  A397A44DCC281E03 CRC64;
     MIREWQVLTT ERMEPALNMA IDEALIGFVG RGEVAPTLRF YSWEPRGLSV GHFQRATKDI
     DRNRIEALGI PIVRRMTGGR AVLHADELTY SVILPEQMEG VPKTVIESYR MLTEGIRKGY
     HHLGIPVEFS VPMTEEEKEE LRKPKSAVCF DAASYYELAV GKRKVAGSAQ VRHQGVVLQH
     GSVPLSVDEG ELFDCFLYED ETMRERMKAR FAGKAVALNE LAGRSVSFEE VRLAFVKGFE
     DALQLTFRPL EFNSTQWQEI ERLAEKYRSE EWNWKR