LIPB_ARTS2
ID LIPB_ARTS2 Reviewed; 222 AA.
AC A0JVC9;
DT 26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 12-DEC-2006, sequence version 1.
DT 03-AUG-2022, entry version 94.
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=Arth_1605;
OS Arthrobacter sp. (strain FB24).
OC Bacteria; Actinobacteria; Micrococcales; Micrococcaceae; Arthrobacter.
OX NCBI_TaxID=290399;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=FB24;
RX PubMed=24501649; DOI=10.4056/sigs.4438185;
RA Nakatsu C.H., Barabote R., Thompson S., Bruce D., Detter C., Brettin T.,
RA Han C., Beasley F., Chen W., Konopka A., Xie G.;
RT "Complete genome sequence of Arthrobacter sp. strain FB24.";
RL Stand. Genomic Sci. 9:106-116(2013).
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; CP000454; ABK02999.1; -; Genomic_DNA.
DR RefSeq; WP_011691465.1; NC_008541.1.
DR AlphaFoldDB; A0JVC9; -.
DR SMR; A0JVC9; -.
DR STRING; 290399.Arth_1605; -.
DR EnsemblBacteria; ABK02999; ABK02999; Arth_1605.
DR KEGG; art:Arth_1605; -.
DR eggNOG; COG0321; Bacteria.
DR HOGENOM; CLU_035168_2_1_11; -.
DR OMA; GEVTYHC; -.
DR OrthoDB; 1806796at2; -.
DR UniPathway; UPA00538; UER00592.
DR Proteomes; UP000000754; 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 Pfam; PF03099; BPL_LplA_LipB; 1.
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..222
FT /note="Octanoyltransferase"
FT /id="PRO_0000321624"
FT DOMAIN 34..214
FT /note="BPL/LPL catalytic"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01067"
FT ACT_SITE 175
FT /note="Acyl-thioester intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 72..79
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
FT BINDING 144..146
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 SITE 141
FT /note="Lowers pKa of active site Cys"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00013"
SQ SEQUENCE 222 AA; 24049 MW; 6F3C35D12661D949 CRC64;
MTLEFSTLGL APDFVDYMKG WDTQRELHDK VVAAEAPSTV LLLEHAAVYT AGKLTEDHER
PFDGTPVVAV DRGGKLTWHG PGQLIAYPIL KLKNRSGIRD YVERLEAVMI AVMADYGINA
ERIKGRAGVW IKADSKGPDR KIAAIGIRVL DGVTMHGIAI NCNNDLAPYA QIIACGITDA
GVTTMSIEAG RTITPGDIAE RVVEEFRKHE EALVSSPEGA LL
