ID A0A0K1EAA7_CHOCO Unreviewed; 407 AA.
AC A0A0K1EAA7;
DT 11-NOV-2015, integrated into UniProtKB/TrEMBL.
DT 11-NOV-2015, sequence version 1.
DT 27-MAR-2024, entry version 38.
DE RecName: Full=Cysteine desulfurase IscS {ECO:0000256|HAMAP-Rule:MF_00331};
DE EC=2.8.1.7 {ECO:0000256|HAMAP-Rule:MF_00331};
GN Name=iscS {ECO:0000256|HAMAP-Rule:MF_00331,
GN ECO:0000313|EMBL:AKT37518.1};
GN ORFNames=CMC5_016590 {ECO:0000313|EMBL:AKT37518.1};
OS Chondromyces crocatus.
OC Bacteria; Myxococcota; Polyangia; Polyangiales; Polyangiaceae;
OC Chondromyces.
OX NCBI_TaxID=52 {ECO:0000313|EMBL:AKT37518.1, ECO:0000313|Proteomes:UP000067626};
RN [1] {ECO:0000313|EMBL:AKT37518.1, ECO:0000313|Proteomes:UP000067626}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Cm c5 {ECO:0000313|EMBL:AKT37518.1,
RC ECO:0000313|Proteomes:UP000067626};
RA Zaburannyi N., Bunk B., Maier J., Overmann J., Mueller R.;
RT "Genome analysis of myxobacterium Chondromyces crocatus Cm c5 reveals a
RT high potential for natural compound synthesis and the genetic basis for the
RT loss of fruiting body formation.";
RL Submitted (JUL-2015) to the EMBL/GenBank/DDBJ databases.
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:0000256|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:0000256|HAMAP-
CC Rule:MF_00331};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|HAMAP-Rule:MF_00331, ECO:0000256|RuleBase:RU004504};
CC -!- PATHWAY: Cofactor biosynthesis; iron-sulfur cluster biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_00331}.
CC -!- SUBUNIT: Homodimer. Forms a heterotetramer with IscU, interacts with
CC other sulfur acceptors. {ECO:0000256|HAMAP-Rule:MF_00331}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00331}.
CC -!- SIMILARITY: Belongs to the class-V pyridoxal-phosphate-dependent
CC aminotransferase family. NifS/IscS subfamily.
CC {ECO:0000256|ARBA:ARBA00006490, ECO:0000256|HAMAP-Rule:MF_00331}.
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DR EMBL; CP012159; AKT37518.1; -; Genomic_DNA.
DR RefSeq; WP_050429872.1; NZ_CP012159.1.
DR AlphaFoldDB; A0A0K1EAA7; -.
DR STRING; 52.CMC5_016590; -.
DR KEGG; ccro:CMC5_016590; -.
DR PATRIC; fig|52.7.peg.1775; -.
DR OrthoDB; 9808002at2; -.
DR UniPathway; UPA00266; -.
DR Proteomes; UP000067626; 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; 3.90.1150.10; Aspartate Aminotransferase, domain 1; 1.
DR Gene3D; 3.40.640.10; Type I PLP-dependent aspartate aminotransferase-like (Major domain); 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; CYSTEINE DESULFURASE, MITOCHONDRIAL; 1.
DR PANTHER; PTHR11601; CYSTEINE DESULFURYLASE FAMILY MEMBER; 1.
DR Pfam; PF00266; Aminotran_5; 1.
DR PIRSF; PIRSF005572; NifS; 1.
DR SUPFAM; SSF53383; PLP-dependent transferases; 1.
DR PROSITE; PS00595; AA_TRANSFER_CLASS_5; 1.
PE 3: Inferred from homology;
KW 2Fe-2S {ECO:0000256|HAMAP-Rule:MF_00331};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00331};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00331};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW Rule:MF_00331};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00331};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW Rule:MF_00331}; Reference proteome {ECO:0000313|Proteomes:UP000067626};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_00331, ECO:0000313|EMBL:AKT37518.1}.
FT DOMAIN 7..372
FT /note="Aminotransferase class V"
FT /evidence="ECO:0000259|Pfam:PF00266"
FT ACT_SITE 331
FT /note="Cysteine persulfide intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00331"
FT BINDING 76..77
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00331"
FT BINDING 156
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00331"
FT BINDING 184
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00331"
FT BINDING 204..206
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00331"
FT BINDING 245
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00331"
FT BINDING 331
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:0000256|HAMAP-Rule:MF_00331"
FT MOD_RES 207
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00331"
SQ SEQUENCE 407 AA; 44359 MW; 280C86D5AE0C795A CRC64;
MAIQFPIYMD NHATTPVDPR VLEAMLPYFS GKFGNAASRS HAYGWTAEEA VSKARETIAK
LIGASNPKEI VFTSGATESD NLALKGVAEF YKEKGNHIIT TVVEHKAILD TCKRLEKQGY
EVTYLNVDKD GLVDPDDVAK AITDRTLLVS VMLANNEVGS VQPIAEIGKI TRARGVLLHS
DAVQGIGKVP FDVEKMNVDL ASVTAHKIYG PKGVGCLYVR RSKPRVRLTA QMDGGGHEFG
MRSGTLNVPG IVGFAKAAEI LIQEGEAESH KLFGLRERLR LRLMKELDEL RVNGSMKSRL
PGNLNVSFSF VEGEALMMAI KDVAVSSGSA CTSASLEPSY VLHAMGVGDD LAHSSIRFGI
GRFNTEEEID YVADLVIGKV KKLREMSPLY EMFKEGIDLS SVQWAAH
//
