ID   GSH1_BUCA5              Reviewed;         518 AA.
AC   B8D9I8;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 61.
DE   RecName: Full=Glutamate--cysteine ligase {ECO:0000255|HAMAP-Rule:MF_00578};
DE            EC=6.3.2.2 {ECO:0000255|HAMAP-Rule:MF_00578};
DE   AltName: Full=Gamma-ECS {ECO:0000255|HAMAP-Rule:MF_00578};
DE            Short=GCS {ECO:0000255|HAMAP-Rule:MF_00578};
DE   AltName: Full=Gamma-glutamylcysteine synthetase {ECO:0000255|HAMAP-Rule:MF_00578};
GN   Name=gshA {ECO:0000255|HAMAP-Rule:MF_00578}; OrderedLocusNames=BUAP5A_400;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain 5A).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=563178;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=5A;
RX   PubMed=19150844; DOI=10.1126/science.1167140;
RA   Moran N.A., McLaughlin H.J., Sorek R.;
RT   "The dynamics and time scale of ongoing genomic erosion in symbiotic
RT   bacteria.";
RL   Science 323:379-382(2009).
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:0000255|HAMAP-Rule:MF_00578};
CC   -!- PATHWAY: Sulfur metabolism; glutathione biosynthesis; glutathione from
CC       L-cysteine and L-glutamate: step 1/2. {ECO:0000255|HAMAP-
CC       Rule:MF_00578}.
CC   -!- SIMILARITY: Belongs to the glutamate--cysteine ligase type 1 family.
CC       Type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_00578}.
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DR   EMBL; CP001161; ACL30759.1; -; Genomic_DNA.
DR   RefSeq; WP_009874363.1; NC_011833.1.
DR   AlphaFoldDB; B8D9I8; -.
DR   SMR; B8D9I8; -.
DR   KEGG; bap:BUAP5A_400; -.
DR   HOGENOM; CLU_020728_3_0_6; -.
DR   OMA; RYSWLLM; -.
DR   OrthoDB; 967793at2; -.
DR   UniPathway; UPA00142; UER00209.
DR   Proteomes; UP000006904; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0004357; F:glutamate-cysteine ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006750; P:glutathione biosynthetic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00578; Glu_cys_ligase; 1.
DR   InterPro; IPR014746; Gln_synth/guanido_kin_cat_dom.
DR   InterPro; IPR007370; Glu_cys_ligase.
DR   InterPro; IPR006334; Glut_cys_ligase.
DR   PANTHER; PTHR38761; PTHR38761; 1.
DR   Pfam; PF04262; Glu_cys_ligase; 1.
DR   SUPFAM; SSF55931; SSF55931; 1.
DR   TIGRFAMs; TIGR01434; glu_cys_ligase; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Glutathione biosynthesis; Ligase; Nucleotide-binding.
FT   CHAIN           1..518
FT                   /note="Glutamate--cysteine ligase"
FT                   /id="PRO_1000146874"
SQ   SEQUENCE   518 AA;  60979 MW;  D486BD1CFD421EF7 CRC64;
     MIEDISKKIA WLKKNPKMLK GIFRGIERET LRIQKNGHFS KTIHPYLIGS SLTHKWITTD
     FSENLLEFIT PTSDNIDYLL SFLTDLHSFT ASKIKNERMW PFSIPYCFND QTNIQIAQYG
     KSNIGKMKTT YRIGLKNRYG DLINTISGIH YNFSLPLFFW TNWENNQNKK NNTDLISSGY
     LNLIRNYYRF GWIVPYLFGS SPAISSFFLK DTKKKYKFKK NKEDIFYLPW STSLRLSDIG
     YSNTNILDLN IMFNDFNEYI ESFQNALKTP SKKFINIGLK DEHGNFKQLN TNILQIENEL
     YTQIRPKRKT KDGESLLEAL KNRGIEYVEI RSLDVNPFSP IGINKNQILL LDLFLIWCAL
     IDSPKIDKTD FLLTTKNWER IIYEGRKPNQ KIYINNNNET KTLIEIGQII FKDLNEIALI
     LDSNSNNLLY QKACKETQLF LKNPELTYSA QCLNFLMTTG IKKTGLYLAN KYHEKFINKN
     YFNLNQSVLE QEVIRSHQKK IEIEREDILS FEEYIRNK