ID   GCS2_KLEP3              Reviewed;         371 AA.
AC   B5Y035;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   25-NOV-2008, sequence version 1.
DT   03-AUG-2022, entry version 63.
DE   RecName: Full=Putative glutamate--cysteine ligase 2 {ECO:0000255|HAMAP-Rule:MF_01609};
DE            EC=6.3.2.2 {ECO:0000255|HAMAP-Rule:MF_01609};
DE   AltName: Full=Gamma-glutamylcysteine synthetase 2 {ECO:0000255|HAMAP-Rule:MF_01609};
DE            Short=GCS 2 {ECO:0000255|HAMAP-Rule:MF_01609};
DE            Short=Gamma-GCS 2 {ECO:0000255|HAMAP-Rule:MF_01609};
GN   OrderedLocusNames=KPK_4022;
OS   Klebsiella pneumoniae (strain 342).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX   NCBI_TaxID=507522;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=342;
RX   PubMed=18654632; DOI=10.1371/journal.pgen.1000141;
RA   Fouts D.E., Tyler H.L., DeBoy R.T., Daugherty S., Ren Q., Badger J.H.,
RA   Durkin A.S., Huot H., Shrivastava S., Kothari S., Dodson R.J., Mohamoud Y.,
RA   Khouri H., Roesch L.F.W., Krogfelt K.A., Struve C., Triplett E.W.,
RA   Methe B.A.;
RT   "Complete genome sequence of the N2-fixing broad host range endophyte
RT   Klebsiella pneumoniae 342 and virulence predictions verified in mice.";
RL   PLoS Genet. 4:E1000141-E1000141(2008).
CC   -!- FUNCTION: ATP-dependent carboxylate-amine ligase which exhibits weak
CC       glutamate--cysteine ligase activity. {ECO:0000255|HAMAP-Rule:MF_01609}.
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_01609};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01609}.
CC   -!- SIMILARITY: Belongs to the glutamate--cysteine ligase type 2 family.
CC       YbdK subfamily. {ECO:0000255|HAMAP-Rule:MF_01609}.
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DR   EMBL; CP000964; ACI07356.1; -; Genomic_DNA.
DR   AlphaFoldDB; B5Y035; -.
DR   SMR; B5Y035; -.
DR   EnsemblBacteria; ACI07356; ACI07356; KPK_4022.
DR   KEGG; kpe:KPK_4022; -.
DR   HOGENOM; CLU_044848_1_1_6; -.
DR   OMA; LIFGLHV; -.
DR   OrthoDB; 991285at2; -.
DR   BioCyc; KPNE507522:GI0B-4004-MON; -.
DR   Proteomes; UP000001734; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0004357; F:glutamate-cysteine ligase activity; IEA:UniProtKB-EC.
DR   GO; GO:0042398; P:cellular modified amino acid biosynthetic process; IEA:InterPro.
DR   HAMAP; MF_01609; Glu_cys_ligase_2; 1.
DR   InterPro; IPR006336; GCS2.
DR   InterPro; IPR014746; Gln_synth/guanido_kin_cat_dom.
DR   InterPro; IPR011793; YbdK.
DR   Pfam; PF04107; GCS2; 1.
DR   SUPFAM; SSF55931; SSF55931; 1.
DR   TIGRFAMs; TIGR02050; gshA_cyan_rel; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Ligase; Nucleotide-binding.
FT   CHAIN           1..371
FT                   /note="Putative glutamate--cysteine ligase 2"
FT                   /id="PRO_1000148223"
SQ   SEQUENCE   371 AA;  41783 MW;  B3B9CAE653A4C40B CRC64;
     MPLADFHRSD PFTLGIELEL QVVNPPGYDL SQDASTLIAD VQHQLTVGEA KHDITESMLE
     IATGVCRDIS HAQTQLSAIQ QAVQRAALRH HLQICGGGSH PFHAWQRQQI SDNPRYVKTV
     EHFGYLAQQA TVFGQHVHVG CQSGDDALYL LHGLSRFVPH FIALNAASPW FDSTDSRFAC
     SRLNRFSSYP DNGPMPWVAD WQGFRRLFRQ LSYTSMIDSM KDLHWDIRPS PQFGTVEVRV
     MDTPLTLAQA IHIAGFIQTL ACWLLTERPF KHQPDDYLLY PFNRYQACRY GLDGTLTDVR
     SGEQRSIRQE ILQLADRLAP FAHQLKATAA LEAVVRQAKS PHSEAQQMRD FIANGGSLSG
     LVQKHCEIWA A