LIPB_DICT6
ID LIPB_DICT6 Reviewed; 232 AA.
AC B5YD73;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 25-NOV-2008, sequence version 1.
DT 03-AUG-2022, entry version 73.
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=DICTH_0601;
OS Dictyoglomus thermophilum (strain ATCC 35947 / DSM 3960 / H-6-12).
OC Bacteria; Dictyoglomi; Dictyoglomales; Dictyoglomaceae; Dictyoglomus.
OX NCBI_TaxID=309799;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35947 / DSM 3960 / H-6-12;
RX PubMed=24558247; DOI=10.1128/genomea.00109-14;
RA Coil D.A., Badger J.H., Forberger H.C., Riggs F., Madupu R., Fedorova N.,
RA Ward N., Robb F.T., Eisen J.A.;
RT "Complete Genome Sequence of the Extreme Thermophile Dictyoglomus
RT thermophilum H-6-12.";
RL Genome Announc. 2:0-0(2014).
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; CP001146; ACI18548.1; -; Genomic_DNA.
DR RefSeq; WP_012547180.1; NC_011297.1.
DR AlphaFoldDB; B5YD73; -.
DR SMR; B5YD73; -.
DR STRING; 309799.DICTH_0601; -.
DR EnsemblBacteria; ACI18548; ACI18548; DICTH_0601.
DR KEGG; dth:DICTH_0601; -.
DR eggNOG; COG0321; Bacteria.
DR HOGENOM; CLU_035168_1_1_0; -.
DR OMA; GEVTYHC; -.
DR OrthoDB; 1806796at2; -.
DR UniPathway; UPA00538; UER00592.
DR Proteomes; UP000001733; 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; Transferase.
FT CHAIN 1..232
FT /note="Octanoyltransferase"
FT /id="PRO_1000201793"
FT DOMAIN 32..219
FT /note="BPL/LPL catalytic"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01067"
FT ACT_SITE 171
FT /note="Acyl-thioester intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 77..84
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 140..142
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 153..155
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT SITE 137
FT /note="Lowers pKa of active site Cys"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
SQ SEQUENCE 232 AA; 26653 MW; 0E9364E728F95B4D CRC64;
MKKLLVIDFR EKIKYEDAWD LQKKLHDLRV KDTIYDTLIL LEHFPVITLG KFGDEKNLLK
TKEELKSMGI DFIRVDRGGD ITYHGPSQLV GYFIFKVDGV KNFVLKVEKS IINVLHEYGI
EAKESIEYPG VWVEDRKITA IGIAIKKRVS YHGFALNVNN DLAPFSYIIP CGLKDKKVTS
ILKEANFSPP MEDVKRKVCL SVVKEFGFDS FMVFNFSSCK ELSNFGMLLE DL
