ID   GLNA_KLULA              Reviewed;         372 AA.
AC   Q874T6;
DT   13-APR-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   25-MAY-2022, entry version 103.
DE   RecName: Full=Glutamine synthetase;
DE            Short=GS;
DE            EC=6.3.1.2;
DE   AltName: Full=Glutamate--ammonia ligase;
GN   Name=GLN1; OrderedLocusNames=KLLA0E06259g;
OS   Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 /
OS   NRRL Y-1140 / WM37) (Yeast) (Candida sphaerica).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC   Saccharomycetales; Saccharomycetaceae; Kluyveromyces.
OX   NCBI_TaxID=284590;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37;
RX   PubMed=17328740; DOI=10.1111/j.1567-1364.2006.00148.x;
RA   Goffrini P.;
RT   "A respiratory-deficient mutation associated with high salt sensitivity in
RT   Kluyveromyces lactis.";
RL   FEMS Yeast Res. 7:180-187(2007).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37;
RX   PubMed=15229592; DOI=10.1038/nature02579;
RA   Dujon B., Sherman D., Fischer G., Durrens P., Casaregola S., Lafontaine I.,
RA   de Montigny J., Marck C., Neuveglise C., Talla E., Goffard N., Frangeul L.,
RA   Aigle M., Anthouard V., Babour A., Barbe V., Barnay S., Blanchin S.,
RA   Beckerich J.-M., Beyne E., Bleykasten C., Boisrame A., Boyer J.,
RA   Cattolico L., Confanioleri F., de Daruvar A., Despons L., Fabre E.,
RA   Fairhead C., Ferry-Dumazet H., Groppi A., Hantraye F., Hennequin C.,
RA   Jauniaux N., Joyet P., Kachouri R., Kerrest A., Koszul R., Lemaire M.,
RA   Lesur I., Ma L., Muller H., Nicaud J.-M., Nikolski M., Oztas S.,
RA   Ozier-Kalogeropoulos O., Pellenz S., Potier S., Richard G.-F.,
RA   Straub M.-L., Suleau A., Swennen D., Tekaia F., Wesolowski-Louvel M.,
RA   Westhof E., Wirth B., Zeniou-Meyer M., Zivanovic Y., Bolotin-Fukuhara M.,
RA   Thierry A., Bouchier C., Caudron B., Scarpelli C., Gaillardin C.,
RA   Weissenbach J., Wincker P., Souciet J.-L.;
RT   "Genome evolution in yeasts.";
RL   Nature 430:35-44(2004).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-glutamate + NH4(+) = ADP + H(+) + L-glutamine +
CC         phosphate; Xref=Rhea:RHEA:16169, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:28938, ChEBI:CHEBI:29985, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:58359, ChEBI:CHEBI:456216; EC=6.3.1.2;
CC   -!- SUBUNIT: Homooctamer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the glutamine synthetase family. {ECO:0000305}.
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DR   EMBL; AJ547613; CAD67983.1; -; Genomic_DNA.
DR   EMBL; CR382125; CAG99318.1; -; Genomic_DNA.
DR   RefSeq; XP_454231.1; XM_454231.1.
DR   AlphaFoldDB; Q874T6; -.
DR   SMR; Q874T6; -.
DR   STRING; 28985.XP_454231.1; -.
DR   EnsemblFungi; CAG99318; CAG99318; KLLA0_E06293g.
DR   GeneID; 2894685; -.
DR   KEGG; kla:KLLA0_E06293g; -.
DR   eggNOG; KOG0683; Eukaryota.
DR   HOGENOM; CLU_036762_1_1_1; -.
DR   InParanoid; Q874T6; -.
DR   OMA; DRRPNAN; -.
DR   Proteomes; UP000000598; Chromosome E.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0034399; C:nuclear periphery; IEA:EnsemblFungi.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0004356; F:glutamate-ammonia ligase activity; IEA:UniProtKB-EC.
DR   GO; GO:0006542; P:glutamine biosynthetic process; IEA:EnsemblFungi.
DR   Gene3D; 3.10.20.70; -; 1.
DR   InterPro; IPR008147; Gln_synt_b-grasp.
DR   InterPro; IPR036651; Gln_synt_N.
DR   InterPro; IPR014746; Gln_synth/guanido_kin_cat_dom.
DR   InterPro; IPR008146; Gln_synth_cat_dom.
DR   InterPro; IPR027303; Gln_synth_gly_rich_site.
DR   InterPro; IPR027302; Gln_synth_N_conserv_site.
DR   Pfam; PF00120; Gln-synt_C; 1.
DR   Pfam; PF03951; Gln-synt_N; 1.
DR   SMART; SM01230; Gln-synt_C; 1.
DR   SUPFAM; SSF54368; SSF54368; 1.
DR   SUPFAM; SSF55931; SSF55931; 1.
DR   PROSITE; PS00180; GLNA_1; 1.
DR   PROSITE; PS00181; GLNA_ATP; 1.
DR   PROSITE; PS51986; GS_BETA_GRASP; 1.
DR   PROSITE; PS51987; GS_CATALYTIC; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Ligase; Nucleotide-binding; Reference proteome.
FT   CHAIN           1..372
FT                   /note="Glutamine synthetase"
FT                   /id="PRO_0000153160"
FT   DOMAIN          26..105
FT                   /note="GS beta-grasp"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01330"
FT   DOMAIN          112..372
FT                   /note="GS catalytic"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01331"
SQ   SEQUENCE   372 AA;  41677 MW;  70023A50041D1E65 CRC64;
     MAATSDIVEK THILQKYLEL DQRGAIIAEY VWIDSEGGLR SKGRTLNKKV TSVDSLPEWN
     FDGSSTGQAP GHDSDIYLKP VAFYPDPFRR GDNIVVLAEC WNNDGTPNKF NHRHEAAKLF
     EAHKDAEMWF GLEQEYTLFD QYDQVYGWPK GGFPAPQGPY YCGVGAGKVF ARDVIEAHYR
     ACLYAGVNIS GINAEVMPSQ WEFQVGPCEG IAMADQLWIA RYFLHRVAEE FGVKVSLHPK
     PLKGDWNGAG CHTNVSTKLM RAPGGMKYIE DAIEKLSKRH NEHIKLYGAD NEQRLTGRHE
     TASMSTFSSG VANRGASIRI PRSVNKEGYG YFEDRRPASN IDPYLVTGIM CETVCGAIEN
     ANMTKEYERE SL