ISCS_ANADF
ID ISCS_ANADF Reviewed; 404 AA.
AC A7H804;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 11-SEP-2007, sequence version 1.
DT 03-AUG-2022, entry version 84.
DE RecName: Full=Cysteine desulfurase IscS {ECO:0000255|HAMAP-Rule:MF_00331};
DE EC=2.8.1.7 {ECO:0000255|HAMAP-Rule:MF_00331};
GN Name=iscS {ECO:0000255|HAMAP-Rule:MF_00331};
GN OrderedLocusNames=Anae109_0637;
OS Anaeromyxobacter sp. (strain Fw109-5).
OC Bacteria; Proteobacteria; Deltaproteobacteria; Myxococcales;
OC Cystobacterineae; Anaeromyxobacteraceae; Anaeromyxobacter;
OC unclassified Anaeromyxobacter.
OX NCBI_TaxID=404589;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Fw109-5;
RX PubMed=25614562; DOI=10.1128/genomea.01449-14;
RA Hwang C., Copeland A., Lucas S., Lapidus A., Barry K., Glavina Del Rio T.,
RA Dalin E., Tice H., Pitluck S., Sims D., Brettin T., Bruce D.C.,
RA Detter J.C., Han C.S., Schmutz J., Larimer F.W., Land M.L., Hauser L.J.,
RA Kyrpides N., Lykidis A., Richardson P., Belieav A., Sanford R.A.,
RA Loeffler F.E., Fields M.W.;
RT "Complete genome sequence of Anaeromyxobacter sp. Fw109-5, an anaerobic,
RT metal-reducing bacterium isolated from a contaminated subsurface
RT environment.";
RL Genome Announc. 3:0-0(2015).
CC -!- FUNCTION: Master enzyme that delivers sulfur to a number of partners
CC involved in Fe-S cluster assembly, tRNA modification or cofactor
CC biosynthesis. Catalyzes the removal of elemental sulfur atoms from
CC cysteine to produce alanine. Functions as a sulfur delivery protein for
CC Fe-S cluster synthesis onto IscU, an Fe-S scaffold assembly protein, as
CC well as other S acceptor proteins. {ECO:0000255|HAMAP-Rule:MF_00331}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[sulfur carrier]-H + L-cysteine = [sulfur carrier]-SH + L-
CC alanine; Xref=Rhea:RHEA:43892, Rhea:RHEA-COMP:14737, Rhea:RHEA-
CC COMP:14739, ChEBI:CHEBI:29917, ChEBI:CHEBI:35235, ChEBI:CHEBI:57972,
CC ChEBI:CHEBI:64428; EC=2.8.1.7; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00331};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00331};
CC -!- PATHWAY: Cofactor biosynthesis; iron-sulfur cluster biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_00331}.
CC -!- SUBUNIT: Homodimer. Forms a heterotetramer with IscU, interacts with
CC other sulfur acceptors. {ECO:0000255|HAMAP-Rule:MF_00331}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00331}.
CC -!- SIMILARITY: Belongs to the class-V pyridoxal-phosphate-dependent
CC aminotransferase family. NifS/IscS subfamily. {ECO:0000255|HAMAP-
CC Rule:MF_00331}.
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DR EMBL; CP000769; ABS24850.1; -; Genomic_DNA.
DR RefSeq; WP_011984956.1; NC_009675.1.
DR AlphaFoldDB; A7H804; -.
DR SMR; A7H804; -.
DR STRING; 404589.Anae109_0637; -.
DR EnsemblBacteria; ABS24850; ABS24850; Anae109_0637.
DR KEGG; afw:Anae109_0637; -.
DR eggNOG; COG1104; Bacteria.
DR HOGENOM; CLU_003433_0_2_7; -.
DR OMA; KGLYWAR; -.
DR OrthoDB; 839689at2; -.
DR UniPathway; UPA00266; -.
DR Proteomes; UP000006382; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR GO; GO:0031071; F:cysteine desulfurase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0044571; P:[2Fe-2S] cluster assembly; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.640.10; -; 1.
DR Gene3D; 3.90.1150.10; -; 1.
DR HAMAP; MF_00331; Cys_desulf_IscS; 1.
DR InterPro; IPR000192; Aminotrans_V_dom.
DR InterPro; IPR020578; Aminotrans_V_PyrdxlP_BS.
DR InterPro; IPR010240; Cys_deSase_IscS.
DR InterPro; IPR016454; Cysteine_dSase.
DR InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR PANTHER; PTHR11601:SF34; PTHR11601:SF34; 1.
DR Pfam; PF00266; Aminotran_5; 1.
DR PIRSF; PIRSF005572; NifS; 1.
DR SUPFAM; SSF53383; SSF53383; 1.
DR TIGRFAMs; TIGR02006; IscS; 1.
DR PROSITE; PS00595; AA_TRANSFER_CLASS_5; 1.
PE 3: Inferred from homology;
KW 2Fe-2S; Cytoplasm; Iron; Iron-sulfur; Metal-binding; Pyridoxal phosphate;
KW Reference proteome; Transferase.
FT CHAIN 1..404
FT /note="Cysteine desulfurase IscS"
FT /id="PRO_1000019403"
FT ACT_SITE 327
FT /note="Cysteine persulfide intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00331"
FT BINDING 73..74
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00331"
FT BINDING 153
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00331"
FT BINDING 181
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00331"
FT BINDING 201..203
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00331"
FT BINDING 241
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00331"
FT BINDING 327
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /ligand_note="ligand shared with IscU"
FT /note="via persulfide group"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00331"
FT MOD_RES 204
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00331"
SQ SEQUENCE 404 AA; 44056 MW; E4F7D9FB93D56E65 CRC64;
MKIPIYMDYH ATTPVDRRVL EAMLPYFAED FGNAASKSHA FGWRAEEAVE AAREEVARLV
GASAKEIVWT SGATESDNLA VKGAAQFYQS KGKHLVTCKT EHKAVLDSMH ALERQGFEVT
FLDVEKDGRL DPARLRAALR EDTILVSIMH ANNETGVVHP IEEIGRITRA AGVLFHCDAV
QSAGKLPFDV EDANVDLASL SAHKMYGPKG VGALYVRRKP RVRLIAQMDG GGHERGFRSG
TLNVPGIVGF GKAAELARLE GAAEAERVLA LRERLRKGLD AGLDLLTVNG SLAHRVPGNL
NVSFAYVEGE ALMMAIKDVA VSSGSACTSA SLEPSYVLRA MGISEDLAHS SIRFGLGRFT
TEEEVDHVVR LVVEKVRKLR EMSPLYEMVK EGVDLSQIEW ANPH
