ID   GLSA_TRIV2              Reviewed;         334 AA.
AC   Q3MEJ6;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2005, sequence version 1.
DT   03-AUG-2022, entry version 80.
DE   RecName: Full=Glutaminase {ECO:0000255|HAMAP-Rule:MF_00313};
DE            EC=3.5.1.2 {ECO:0000255|HAMAP-Rule:MF_00313};
GN   Name=glsA {ECO:0000255|HAMAP-Rule:MF_00313}; OrderedLocusNames=Ava_0966;
OS   Trichormus variabilis (strain ATCC 29413 / PCC 7937) (Anabaena variabilis).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Trichormus.
OX   NCBI_TaxID=240292;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29413 / PCC 7937;
RX   PubMed=25197444; DOI=10.4056/sigs.3899418;
RA   Thiel T., Pratte B.S., Zhong J., Goodwin L., Copeland A., Lucas S., Han C.,
RA   Pitluck S., Land M.L., Kyrpides N.C., Woyke T.;
RT   "Complete genome sequence of Anabaena variabilis ATCC 29413.";
RL   Stand. Genomic Sci. 9:562-573(2014).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + L-glutamine = L-glutamate + NH4(+);
CC         Xref=Rhea:RHEA:15889, ChEBI:CHEBI:15377, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:29985, ChEBI:CHEBI:58359; EC=3.5.1.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00313};
CC   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_00313}.
CC   -!- SIMILARITY: Belongs to the glutaminase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00313}.
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DR   EMBL; CP000117; ABA20590.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q3MEJ6; -.
DR   SMR; Q3MEJ6; -.
DR   STRING; 240292.Ava_0966; -.
DR   EnsemblBacteria; ABA20590; ABA20590; Ava_0966.
DR   KEGG; ava:Ava_0966; -.
DR   eggNOG; COG2066; Bacteria.
DR   HOGENOM; CLU_027932_1_0_3; -.
DR   OMA; MYTCGMY; -.
DR   Proteomes; UP000002533; Chromosome.
DR   GO; GO:0004359; F:glutaminase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006541; P:glutamine metabolic process; IEA:InterPro.
DR   Gene3D; 3.40.710.10; -; 1.
DR   HAMAP; MF_00313; Glutaminase; 1.
DR   InterPro; IPR012338; Beta-lactam/transpept-like.
DR   InterPro; IPR015868; Glutaminase.
DR   PANTHER; PTHR12544; PTHR12544; 1.
DR   Pfam; PF04960; Glutaminase; 1.
DR   SUPFAM; SSF56601; SSF56601; 1.
DR   TIGRFAMs; TIGR03814; Gln_ase; 1.
PE   3: Inferred from homology;
KW   Hydrolase.
FT   CHAIN           1..334
FT                   /note="Glutaminase"
FT                   /id="PRO_1000048321"
FT   BINDING         76
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00313"
FT   BINDING         126
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00313"
FT   BINDING         170
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00313"
FT   BINDING         177
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00313"
FT   BINDING         201
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00313"
FT   BINDING         253
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00313"
FT   BINDING         271
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00313"
SQ   SEQUENCE   334 AA;  36741 MW;  DE0D6CAC4F7BA825 CRC64;
     MSDQANQGDL EIRPSPLLTV INDLHSKYKS LKEGIVANYI PELAKVNPDL FSISIVTVDG
     QVYQVGDYQQ LFTIQSISKV FAYGLALEDH GRDYVLTRVG VEPTGEAFNS IILDEQSKRP
     YNPMVNAGAI ATTSLIKGAG ATERLNRVLE MFRRYIGHDV FVDISVFTSE RSTGHRNRAM
     AHLMLNFGMI DRNLEEALDL YFQQCAVMVN CHDLAVMAAT LANRGVNPVT GEQAVNSRYI
     KDILSVMYTC GMYNFAGEWA YKVGIPAKSG VCGGIMAVVP NQMGIAVFSP PLDIRGNSVR
     GVKVCEELSQ QLGLHLFECV KVENGKWGVG NCEC