ID A0A1H5PSU3_9ACTN Unreviewed; 426 AA.
AC A0A1H5PSU3;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 23.
DE RecName: Full=Glutamate--cysteine ligase EgtA {ECO:0000256|HAMAP-Rule:MF_02034};
DE EC=6.3.2.2 {ECO:0000256|HAMAP-Rule:MF_02034};
DE AltName: Full=Gamma-glutamylcysteine synthase {ECO:0000256|HAMAP-Rule:MF_02034};
DE Short=GCS {ECO:0000256|HAMAP-Rule:MF_02034};
DE Short=Gamma-ECS {ECO:0000256|HAMAP-Rule:MF_02034};
GN Name=egtA {ECO:0000256|HAMAP-Rule:MF_02034};
GN ORFNames=SAMN05216533_8061 {ECO:0000313|EMBL:SEF16932.1};
OS Streptomyces sp. Ag109_O5-10.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=1855349 {ECO:0000313|EMBL:SEF16932.1, ECO:0000313|Proteomes:UP000198812};
RN [1] {ECO:0000313|EMBL:SEF16932.1, ECO:0000313|Proteomes:UP000198812}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Ag109_O5-10 {ECO:0000313|EMBL:SEF16932.1,
RC ECO:0000313|Proteomes:UP000198812};
RA de Groot N.N.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the synthesis of gamma-glutamylcysteine (gamma-GC).
CC This compound is used as substrate for the biosynthesis of the low-
CC molecular thiol compound ergothioneine. {ECO:0000256|HAMAP-
CC Rule:MF_02034}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-cysteine + L-glutamate = ADP + gamma-L-glutamyl-L-
CC cysteine + H(+) + phosphate; Xref=Rhea:RHEA:13285, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:30616, ChEBI:CHEBI:35235,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:58173, ChEBI:CHEBI:456216; EC=6.3.2.2;
CC Evidence={ECO:0000256|ARBA:ARBA00029283, ECO:0000256|HAMAP-
CC Rule:MF_02034, ECO:0000256|PIRNR:PIRNR017901};
CC -!- PATHWAY: Amino-acid biosynthesis; ergothioneine biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_02034}.
CC -!- SIMILARITY: Belongs to the glutamate--cysteine ligase type 2 family.
CC EgtA subfamily. {ECO:0000256|HAMAP-Rule:MF_02034,
CC ECO:0000256|PIRNR:PIRNR017901}.
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DR EMBL; FNTQ01000001; SEF16932.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1H5PSU3; -.
DR STRING; 1855349.SAMN05216533_8061; -.
DR OrthoDB; 9780152at2; -.
DR UniPathway; UPA01014; -.
DR Proteomes; UP000198812; Unassembled WGS sequence.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004357; F:glutamate-cysteine ligase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0052699; P:ergothioneine biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0006750; P:glutathione biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.30.590.20; -; 1.
DR HAMAP; MF_02034; EgtA; 1.
DR InterPro; IPR017809; EgtA_Actinobacteria.
DR InterPro; IPR035434; GCL_bact_plant.
DR InterPro; IPR006336; GCS2.
DR InterPro; IPR014746; Gln_synth/guanido_kin_cat_dom.
DR NCBIfam; TIGR03444; EgtA_Cys_ligase; 1.
DR PANTHER; PTHR34378; GLUTAMATE--CYSTEINE LIGASE, CHLOROPLASTIC; 1.
DR PANTHER; PTHR34378:SF1; GLUTAMATE--CYSTEINE LIGASE, CHLOROPLASTIC; 1.
DR Pfam; PF04107; GCS2; 1.
DR PIRSF; PIRSF017901; GCL; 1.
DR SUPFAM; SSF55931; Glutamine synthetase/guanido kinase; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|HAMAP-Rule:MF_02034,
KW ECO:0000256|PIRNR:PIRNR017901};
KW Ligase {ECO:0000256|HAMAP-Rule:MF_02034, ECO:0000256|PIRNR:PIRNR017901};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_02034,
KW ECO:0000256|PIRNR:PIRNR017901};
KW Reference proteome {ECO:0000313|Proteomes:UP000198812}.
SQ SEQUENCE 426 AA; 45917 MW; DE7FA7772E1EC4A0 CRC64;
MSVSPECGVD GPAVTEQQAE ALVEGVCFKT GPPRSVGVEV EWLVHRERAP HEPVGREELA
AAHADLRDLP LTSGLSIEPG GQVELSSRPA PSLAACVSEV SADLDAVRTA LHEHGLALAG
MGVDPWQRPR RFLRERRYDA MEACLDRTGR AGRTLMCTSA SVQVCLDGGR EEPGVMGFAR
RWWLAHHLGA VLVAVFANSP MAEGRPTGWL STRQLMWAEL DPGRAGGPSL SHDPRHAWVR
RVLDAPVMCV RRDGPWEVPD GVSFREWTRS RTMRPPTHAD LEYHISTLFP PVRPRGHLEL
RMIDAQPGDD GWIVPLAVVT ALFDDPGAAA IANRAVTPLA ERGAGAPAPH NPLWTAAARH
GLADPGLRRA AVTCFAAALD ALPRLGASTG VVAAVAAYAD RYVARGRCPA DDVLDREAPA
RLRAER
//
