GLN1B_RHILV
ID GLN1B_RHILV Reviewed; 469 AA.
AC P09826;
DT 01-JUL-1989, integrated into UniProtKB/Swiss-Prot.
DT 01-JUL-1989, sequence version 1.
DT 03-AUG-2022, entry version 111.
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 Rhizobium leguminosarum bv. viciae.
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Rhizobiaceae; Rhizobium/Agrobacterium group; Rhizobium.
OX NCBI_TaxID=387;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=RCC1001;
RX PubMed=2882467; DOI=10.1093/nar/15.5.1951;
RA Colonna-Romano S., Riccio A., Guida M., Defez R., Lamberti A.,
RA Iaccarino M., Arnold W., Priefer U., Puehler A.;
RT "Tight linkage of glnA and a putative regulatory gene in Rhizobium
RT leguminosarum.";
RL Nucleic Acids Res. 15:1951-1964(1987).
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}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; X04880; CAA28569.1; -; Genomic_DNA.
DR PIR; A26567; AJZRQL.
DR AlphaFoldDB; P09826; -.
DR SMR; P09826; -.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
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:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0006542; P:glutamine biosynthetic process; IEA:InterPro.
DR GO; GO:0009399; P:nitrogen fixation; IEA:UniProtKB-KW.
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; IPR004809; Gln_synth_I.
DR InterPro; IPR001637; Gln_synth_I_adenylation_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 TIGRFAMs; TIGR00653; GlnA; 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 Nitrogen fixation; Nucleotide-binding; Phosphoprotein.
FT CHAIN 1..469
FT /note="Glutamine synthetase"
FT /id="PRO_0000153223"
FT DOMAIN 14..99
FT /note="GS beta-grasp"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01330"
FT DOMAIN 106..469
FT /note="GS catalytic"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01331"
FT BINDING 131
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P9WN39"
FT BINDING 133
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P9WN39"
FT BINDING 209
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT BINDING 214
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P9WN39"
FT BINDING 221
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P9WN39"
FT BINDING 265..266
FT /ligand="L-glutamate"
FT /ligand_id="ChEBI:CHEBI:29985"
FT /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT BINDING 266
FT /ligand="L-glutamate"
FT /ligand_id="ChEBI:CHEBI:29985"
FT /evidence="ECO:0000250|UniProtKB:P12425"
FT BINDING 270
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P9WN39"
FT BINDING 272..274
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT BINDING 274
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250|UniProtKB:P77961"
FT BINDING 322
FT /ligand="L-glutamate"
FT /ligand_id="ChEBI:CHEBI:29985"
FT /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT BINDING 328
FT /ligand="L-glutamate"
FT /ligand_id="ChEBI:CHEBI:29985"
FT /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT BINDING 340
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250|UniProtKB:P9WN39"
FT BINDING 340
FT /ligand="L-glutamate"
FT /ligand_id="ChEBI:CHEBI:29985"
FT /evidence="ECO:0000250|UniProtKB:P9WN39"
FT BINDING 345
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250|UniProtKB:P9WN39"
FT BINDING 353
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250|UniProtKB:P77961"
FT BINDING 358
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P9WN39"
FT BINDING 360
FT /ligand="L-glutamate"
FT /ligand_id="ChEBI:CHEBI:29985"
FT /evidence="ECO:0000250|UniProtKB:P0A1P6"
FT MOD_RES 398
FT /note="O-AMP-tyrosine"
FT /evidence="ECO:0000250|UniProtKB:P9WN39"
SQ SEQUENCE 469 AA; 52233 MW; A1E158ECD0970FBC CRC64;
MATASEILKQ IKENDVKFVD LRFTDRRASL QHVTMDVVCV DEDMFADGVM FDGFSIGGWK
AINESDMVLM PDTETVHMDP FFAQSTMVIV CDILDPVSGE AYNRDRRGTA KKAEAYLKAS
GIGDTVFVGR EAEFFVFDDV KYKADPYNTG FKLDSTELPS NDDTDYETGN LGHRPRVKGG
YFPVPPVDSA QDMRSEMLTV LSEMGVVVEK HHHEVAAAQH DTLVRNADEL GIKFKMQIYK
YVVHQVANAY GKTATFMPKP IFGDNGSGMH VHQSIWKGGK PTFAGDEYAG LSESCLFYIG
GIIKHAKAIN AFTNPSTNSY KRFVPGYEAP VLLAYSARNR SASCRIPFGS NPKAKRVEVR
FPDPTANPYL AFAAMLMAGL DGIKNKIHPG KAMDKDLYDL PPKELKKIPT VCGSLRQALE
SLDKDRKFLT AGGVFDDDQI DAFIELKMAE VMRFEMTPHP VEYDMYYSA
