ID   GLN1B_NEIGO             Reviewed;         472 AA.
AC   P25821;
DT   01-MAY-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1992, sequence version 1.
DT   08-NOV-2023, entry version 104.
DE   RecName: Full=Glutamine synthetase {ECO:0000250|UniProtKB:P0A1P6};
DE            Short=GS {ECO:0000250|UniProtKB:P0A1P6};
DE            EC=6.3.1.2 {ECO:0000250|UniProtKB:P0A1P6};
DE   AltName: Full=Glutamate--ammonia ligase {ECO:0000305};
DE   AltName: Full=Glutamine synthetase I beta {ECO:0000250|UniProtKB:P0A1P6};
DE            Short=GSI beta {ECO:0000250|UniProtKB:P0A1P6};
GN   Name=glnA {ECO:0000250|UniProtKB:P0A1P6};
OS   Neisseria gonorrhoeae.
OC   Bacteria; Pseudomonadota; Betaproteobacteria; Neisseriales; Neisseriaceae;
OC   Neisseria.
OX   NCBI_TaxID=485;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Seifert H.S.;
RL   Submitted (JUN-1997) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the ATP-dependent biosynthesis of glutamine from
CC       glutamate and ammonia. {ECO:0000250|UniProtKB:P0A1P6}.
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         Evidence={ECO:0000250|UniProtKB:P0A1P6};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000250|UniProtKB:P9WN39};
CC       Note=Binds 2 Mg(2+) ions per subunit. {ECO:0000250|UniProtKB:P9WN39};
CC   -!- ACTIVITY REGULATION: The activity of this enzyme could be controlled by
CC       adenylation under conditions of abundant glutamine.
CC       {ECO:0000250|UniProtKB:Q3V5W6}.
CC   -!- SUBUNIT: Oligomer of 12 subunits arranged in the form of two hexameric
CC       ring. {ECO:0000250|UniProtKB:P0A1P6}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250|UniProtKB:P9WN39}.
CC   -!- SIMILARITY: Belongs to the glutamine synthetase family. {ECO:0000305}.
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DR   EMBL; M84113; AAB61772.1; -; Genomic_DNA.
DR   RefSeq; WP_003689535.1; NZ_VAHL01000023.1.
DR   AlphaFoldDB; P25821; -.
DR   SMR; P25821; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0004356; F:glutamine synthetase activity; IEA:UniProtKB-EC.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0006542; P:glutamine biosynthetic process; IEA:InterPro.
DR   Gene3D; 3.10.20.70; Glutamine synthetase, N-terminal domain; 1.
DR   Gene3D; 3.30.590.10; Glutamine synthetase/guanido kinase, catalytic domain; 1.
DR   InterPro; IPR008147; Gln_synt_N.
DR   InterPro; IPR036651; Gln_synt_N_sf.
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; IPR004809; Gln_synth_I.
DR   InterPro; IPR001637; Gln_synth_I_adenylation_site.
DR   InterPro; IPR027302; Gln_synth_N_conserv_site.
DR   NCBIfam; TIGR00653; GlnA; 1.
DR   PANTHER; PTHR43407; GLUTAMINE SYNTHETASE; 1.
DR   PANTHER; PTHR43407:SF2; GLUTAMINE SYNTHETASE; 1.
DR   Pfam; PF00120; Gln-synt_C; 1.
DR   Pfam; PF03951; Gln-synt_N; 1.
DR   SMART; SM01230; Gln-synt_C; 1.
DR   SUPFAM; SSF54368; Glutamine synthetase, N-terminal domain; 1.
DR   SUPFAM; SSF55931; Glutamine synthetase/guanido kinase; 1.
DR   PROSITE; PS00180; GLNA_1; 1.
DR   PROSITE; PS00182; GLNA_ADENYLATION; 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; Magnesium; Metal-binding;
KW   Nucleotide-binding; Phosphoprotein.
FT   CHAIN           1..472
FT                   /note="Glutamine synthetase"
FT                   /id="PRO_0000153248"
FT   DOMAIN          13..101
FT                   /note="GS beta-grasp"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01330"
FT   DOMAIN          108..472
FT                   /note="GS catalytic"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01331"
FT   BINDING         133
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P9WN39"
FT   BINDING         135
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P9WN39"
FT   BINDING         211
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT   BINDING         216
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P9WN39"
FT   BINDING         224
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P9WN39"
FT   BINDING         268..269
FT                   /ligand="L-glutamate"
FT                   /ligand_id="ChEBI:CHEBI:29985"
FT                   /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT   BINDING         269
FT                   /ligand="L-glutamate"
FT                   /ligand_id="ChEBI:CHEBI:29985"
FT                   /evidence="ECO:0000250|UniProtKB:P12425"
FT   BINDING         273
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P9WN39"
FT   BINDING         275..277
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT   BINDING         277
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250|UniProtKB:P77961"
FT   BINDING         325
FT                   /ligand="L-glutamate"
FT                   /ligand_id="ChEBI:CHEBI:29985"
FT                   /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT   BINDING         331
FT                   /ligand="L-glutamate"
FT                   /ligand_id="ChEBI:CHEBI:29985"
FT                   /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT   BINDING         343
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250|UniProtKB:P9WN39"
FT   BINDING         343
FT                   /ligand="L-glutamate"
FT                   /ligand_id="ChEBI:CHEBI:29985"
FT                   /evidence="ECO:0000250|UniProtKB:P9WN39"
FT   BINDING         348
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250|UniProtKB:P9WN39"
FT   BINDING         356
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250|UniProtKB:P77961"
FT   BINDING         361
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250|UniProtKB:P9WN39"
FT   BINDING         363
FT                   /ligand="L-glutamate"
FT                   /ligand_id="ChEBI:CHEBI:29985"
FT                   /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT   MOD_RES         401
FT                   /note="O-AMP-tyrosine"
FT                   /evidence="ECO:0000250|UniProtKB:P9WN39"
SQ   SEQUENCE   472 AA;  51975 MW;  E1643ED5CF240108 CRC64;
     MSIKNAVKLI EKSKARFVDL RFTDTKGKQH HFTVPARIVL EGPEEWFENG QAFDGSSIGG
     WKGIQASDMQ LRPDASTAFV DPFYDDVTVV ITCDVIDPAD GQGYDRDPRS IARRAEAYLK
     SSGIGDTAYF GPEPEFFVFD GVEFETDMHK TRYEITSESG AWASGLHMDG QNTGHRPAVK
     GGYAPVAPID CGQDLRSAMV NILEGLGIEV EVHHSEVGTG SQMEIGTRFA TLVKRADQTQ
     DMKYVIQNVA HNFGKTATFM PKPIMGDNGS GMHVHQSIWK DGQNLFAGDG YAGLSDTALY
     YIGGIIKHAK ALNAITNPST NSYKRLVPHF EAPTKLAYSA KNRSASIRIP SVNSSKARRI
     EARFPDPTAN PYLAFAALLM AGLDGIQNKI HPGDPADKNL YDLPPEEDAL VPTVCASLEE
     ALAALKADHE FLLRGGVFSK DWIDSYIAFK EEDVRRIRMA PHPLEFEMYY SL
//