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Protein

Lipoyl synthase

Gene

lipA

Organism
Rhodobacter sphaeroides (strain ATCC 17023 / 2.4.1 / NCIB 8253 / DSM 158)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

Catalyzes the radical-mediated insertion of two sulfur atoms into the C-6 and C-8 positions of the octanoyl moiety bound to the lipoyl domains of lipoate-dependent enzymes, thereby converting the octanoylated domains into lipoylated derivatives.UniRule annotation

Catalytic activityi

Protein N6-(octanoyl)lysine + an [Fe-S] cluster scaffold protein carrying a [4Fe-4S]2+ cluster + 2 S-adenosyl-L-methionine + 2 oxidized [2Fe-2S] ferredoxin + 6 H+ = protein N6-(dihydrolipoyl)lysine + an [Fe-S] cluster scaffold protein + 2 sulfide + 4 Fe3+ + 2 L-methionine + 2 5'-deoxyadenosine + 2 reduced [2Fe-2S] ferredoxin.UniRule annotation

Cofactori

[4Fe-4S] clusterUniRule annotationNote: Binds 2 [4Fe-4S] clusters per subunit. One cluster is coordinated with 3 cysteines and an exchangeable S-adenosyl-L-methionine.UniRule annotation

Pathwayi: protein lipoylation via endogenous pathway

This protein is involved in step 2 of the subpathway that synthesizes protein N(6)-(lipoyl)lysine from octanoyl-[acyl-carrier-protein].UniRule annotation
Proteins known to be involved in the 2 steps of the subpathway in this organism are:
  1. Octanoyltransferase (lipB)
  2. Lipoyl synthase (lipA)
This subpathway is part of the pathway protein lipoylation via endogenous pathway, which is itself part of Protein modification.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes protein N(6)-(lipoyl)lysine from octanoyl-[acyl-carrier-protein], the pathway protein lipoylation via endogenous pathway and in Protein modification.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi60Iron-sulfur 1 (4Fe-4S)UniRule annotation1
Metal bindingi65Iron-sulfur 1 (4Fe-4S)UniRule annotation1
Metal bindingi71Iron-sulfur 1 (4Fe-4S)UniRule annotation1
Metal bindingi86Iron-sulfur 2 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi90Iron-sulfur 2 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi93Iron-sulfur 2 (4Fe-4S-S-AdoMet)UniRule annotation1

GO - Molecular functioni

Keywordsi

Molecular functionTransferase
Ligand4Fe-4S, Iron, Iron-sulfur, Metal-binding, S-adenosyl-L-methionine

Enzyme and pathway databases

UniPathwayiUPA00538; UER00593

Names & Taxonomyi

Protein namesi
Recommended name:
Lipoyl synthaseUniRule annotation (EC:2.8.1.8UniRule annotation)
Alternative name(s):
Lip-synUniRule annotation
Short name:
LSUniRule annotation
Lipoate synthaseUniRule annotation
Lipoic acid synthaseUniRule annotation
Sulfur insertion protein LipAUniRule annotation
Gene namesi
Name:lipAUniRule annotation
Ordered Locus Names:RHOS4_13720
ORF Names:RSP_2783
OrganismiRhodobacter sphaeroides (strain ATCC 17023 / 2.4.1 / NCIB 8253 / DSM 158)
Taxonomic identifieri272943 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhodobacteralesRhodobacteraceaeRhodobacter
Proteomesi
  • UP000002703 Componenti: Chromosome 1

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003253011 – 320Lipoyl synthaseAdd BLAST320

Proteomic databases

PRIDEiQ3J2P4

Interactioni

Protein-protein interaction databases

STRINGi272943.RSP_2783

Structurei

3D structure databases

ProteinModelPortaliQ3J2P4
SMRiQ3J2P4
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the radical SAM superfamily. Lipoyl synthase family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105C0G Bacteria
COG0320 LUCA
HOGENOMiHOG000235997
KOiK03644
OMAiPYCDIDF
OrthoDBiPOG091H069D
PhylomeDBiQ3J2P4

Family and domain databases

Gene3Di3.20.20.70, 1 hit
HAMAPiMF_00206 Lipoyl_synth, 1 hit
InterProiView protein in InterPro
IPR013785 Aldolase_TIM
IPR006638 Elp3/MiaB/NifB
IPR003698 Lipoyl_synth
IPR007197 rSAM
PfamiView protein in Pfam
PF04055 Radical_SAM, 1 hit
PIRSFiPIRSF005963 Lipoyl_synth, 1 hit
SFLDiSFLDG01058 lipoyl_synthase_like, 1 hit
SFLDS00029 Radical_SAM, 1 hit
SMARTiView protein in SMART
SM00729 Elp3, 1 hit
TIGRFAMsiTIGR00510 lipA, 1 hit

Sequencei

Sequence statusi: Complete.

Q3J2P4-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MIGKLVRDLK IPDQRHPEKA HRPDNVQPKK PSWIRVKAPT SEGYKETRDI
60 70 80 90 100
IRGQKLATVC EEAGCPNVGE CWSQGHATMM IMGEICTRGC SFCNVATGRP
110 120 130 140 150
QALDAFEPGR VAHAVSQLGL KHVVVTSVDR DDLEDGGAEH FAQTIRAIRH
160 170 180 190 200
RAPATTIEVL VPDFLKCGPS ALETVVAARP DVFNHNLETV PGLYPEVRPG
210 220 230 240 250
ARYFHSLRLL QRAKELDPSI FTKSGIMVGL GEDRQGVLQV MDDMRSAEVD
260 270 280 290 300
FLTIGQYLQP TPKHHRVDRF VTPEEFAGYE KAAYGKGFLM VSATPLTRSS
310 320
YHAGDDFARL RDARQKRLGA
Length:320
Mass (Da):35,492
Last modified:November 8, 2005 - v1
Checksum:i0BF64485962BE698
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000143 Genomic DNA Translation: ABA78940.1
RefSeqiWP_002719936.1, NZ_AKVW01000001.1
YP_352841.1, NC_007493.2

Genome annotation databases

EnsemblBacteriaiABA78940; ABA78940; RSP_2783
GeneIDi3720516
KEGGirsp:RSP_2783
PATRICifig|272943.9.peg.1707

Similar proteinsi

Entry informationi

Entry nameiLIPA_RHOS4
AccessioniPrimary (citable) accession number: Q3J2P4
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 18, 2008
Last sequence update: November 8, 2005
Last modified: May 23, 2018
This is version 80 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

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