ID LIPA_BUCAP Reviewed; 319 AA. AC Q8K9Q2; DT 08-NOV-2002, integrated into UniProtKB/Swiss-Prot. DT 01-OCT-2002, sequence version 1. DT 27-MAR-2024, entry version 123. DE RecName: Full=Lipoyl synthase {ECO:0000255|HAMAP-Rule:MF_00206}; DE EC=2.8.1.8 {ECO:0000255|HAMAP-Rule:MF_00206}; DE AltName: Full=Lip-syn {ECO:0000255|HAMAP-Rule:MF_00206}; DE Short=LS {ECO:0000255|HAMAP-Rule:MF_00206}; DE AltName: Full=Lipoate synthase {ECO:0000255|HAMAP-Rule:MF_00206}; DE AltName: Full=Lipoic acid synthase {ECO:0000255|HAMAP-Rule:MF_00206}; DE AltName: Full=Sulfur insertion protein LipA {ECO:0000255|HAMAP-Rule:MF_00206}; GN Name=lipA {ECO:0000255|HAMAP-Rule:MF_00206}; GN OrderedLocusNames=BUsg_259; OS Buchnera aphidicola subsp. Schizaphis graminum (strain Sg). OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales; OC Erwiniaceae; Buchnera. OX NCBI_TaxID=198804; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=Sg; RX PubMed=12089438; DOI=10.1126/science.1071278; RA Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S., RA Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.; RT "50 million years of genomic stasis in endosymbiotic bacteria."; RL Science 296:2376-2379(2002). CC -!- FUNCTION: Catalyzes the radical-mediated insertion of two sulfur atoms CC into the C-6 and C-8 positions of the octanoyl moiety bound to the CC lipoyl domains of lipoate-dependent enzymes, thereby converting the CC octanoylated domains into lipoylated derivatives. {ECO:0000255|HAMAP- CC Rule:MF_00206}. CC -!- CATALYTIC ACTIVITY: CC Reaction=[[Fe-S] cluster scaffold protein carrying a second [4Fe- CC 4S](2+) cluster] + 4 H(+) + N(6)-octanoyl-L-lysyl-[protein] + 2 CC oxidized [2Fe-2S]-[ferredoxin] + 2 S-adenosyl-L-methionine = 2 5'- CC deoxyadenosine + [[Fe-S] cluster scaffold protein] + 4 Fe(3+) + 2 CC hydrogen sulfide + 2 L-methionine + N(6)-[(R)-dihydrolipoyl]-L-lysyl- CC [protein] + 2 reduced [2Fe-2S]-[ferredoxin]; Xref=Rhea:RHEA:16585, CC Rhea:RHEA-COMP:9928, Rhea:RHEA-COMP:10000, Rhea:RHEA-COMP:10001, CC Rhea:RHEA-COMP:10475, Rhea:RHEA-COMP:14568, Rhea:RHEA-COMP:14569, CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17319, ChEBI:CHEBI:29034, CC ChEBI:CHEBI:29919, ChEBI:CHEBI:33722, ChEBI:CHEBI:33737, CC ChEBI:CHEBI:33738, ChEBI:CHEBI:57844, ChEBI:CHEBI:59789, CC ChEBI:CHEBI:78809, ChEBI:CHEBI:83100; EC=2.8.1.8; CC Evidence={ECO:0000255|HAMAP-Rule:MF_00206}; CC -!- COFACTOR: CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883; CC Evidence={ECO:0000255|HAMAP-Rule:MF_00206}; CC Note=Binds 2 [4Fe-4S] clusters per subunit. One cluster is coordinated CC with 3 cysteines and an exchangeable S-adenosyl-L-methionine. CC {ECO:0000255|HAMAP-Rule:MF_00206}; CC -!- PATHWAY: Protein modification; protein lipoylation via endogenous CC pathway; protein N(6)-(lipoyl)lysine from octanoyl-[acyl-carrier- CC protein]: step 2/2. {ECO:0000255|HAMAP-Rule:MF_00206}. CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00206}. CC -!- SIMILARITY: Belongs to the radical SAM superfamily. Lipoyl synthase CC family. {ECO:0000255|HAMAP-Rule:MF_00206}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AE013218; AAM67817.1; -; Genomic_DNA. DR RefSeq; WP_011053784.1; NC_004061.1. DR AlphaFoldDB; Q8K9Q2; -. DR SMR; Q8K9Q2; -. DR STRING; 198804.BUsg_259; -. DR KEGG; bas:BUsg_259; -. DR eggNOG; COG0320; Bacteria. DR HOGENOM; CLU_033144_2_1_6; -. DR UniPathway; UPA00538; UER00593. DR Proteomes; UP000000416; Chromosome. DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell. DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule. DR GO; GO:0016992; F:lipoate synthase activity; IEA:UniProtKB-UniRule. DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW. DR Gene3D; 3.20.20.70; Aldolase class I; 1. DR HAMAP; MF_00206; Lipoyl_synth; 1. DR InterPro; IPR013785; Aldolase_TIM. DR InterPro; IPR006638; Elp3/MiaA/NifB-like_rSAM. DR InterPro; IPR031691; LIAS_N. DR InterPro; IPR003698; Lipoyl_synth. DR InterPro; IPR007197; rSAM. DR NCBIfam; TIGR00510; lipA; 1. DR PANTHER; PTHR10949; LIPOYL SYNTHASE; 1. DR PANTHER; PTHR10949:SF0; LIPOYL SYNTHASE, MITOCHONDRIAL; 1. DR Pfam; PF16881; LIAS_N; 1. DR Pfam; PF04055; Radical_SAM; 1. DR PIRSF; PIRSF005963; Lipoyl_synth; 1. DR SFLD; SFLDF00271; lipoyl_synthase; 1. DR SFLD; SFLDS00029; Radical_SAM; 1. DR SMART; SM00729; Elp3; 1. DR SUPFAM; SSF102114; Radical SAM enzymes; 1. DR PROSITE; PS51918; RADICAL_SAM; 1. PE 3: Inferred from homology; KW 4Fe-4S; Cytoplasm; Iron; Iron-sulfur; Metal-binding; KW S-adenosyl-L-methionine; Transferase. FT CHAIN 1..319 FT /note="Lipoyl synthase" FT /id="PRO_0000102298" FT DOMAIN 78..294 FT /note="Radical SAM core" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01266" FT BINDING 66 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="1" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00206" FT BINDING 71 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="1" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00206" FT BINDING 77 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="1" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00206" FT BINDING 92 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="2" FT /ligand_note="4Fe-4S-S-AdoMet" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00206" FT BINDING 96 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="2" FT /ligand_note="4Fe-4S-S-AdoMet" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00206" FT BINDING 99 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="2" FT /ligand_note="4Fe-4S-S-AdoMet" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00206" FT BINDING 305 FT /ligand="[4Fe-4S] cluster" FT /ligand_id="ChEBI:CHEBI:49883" FT /ligand_label="1" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00206" SQ SEQUENCE 319 AA; 36290 MW; 3266154BD9929FAF CRC64; MNKKKDSLFK TIKKNNIINV ITTESFSKKI IKLNKPDWIK IKIPVDTFRI REIKSALRKN NLHSVCEEAN CPNLPECFNR GTATFMILGS RCTRNCPFCA VSHGKPNSLN VEEPNNLAKT IFDMGIDYVV ITSVVRDDLY DGGAQHFVNC IKSIRKKNKV KIEILVPDFR GRVELILKIF NSGLPDVFNH NVENVPRLYK KVRPGADYKK SLFLLESFKK KYSNIPTKSG LMLGLGEKDT EIIQVMKDLY SNGVTLLTVG QYLQPSINHI PVQRYIPLSE FKNIKKEALS IGFTNAFCGP FVRSSYHASF QANKLIKKI //