ID   PROB_PHOPR              Reviewed;         378 AA.
AC   Q6LTX3;
DT   16-AUG-2004, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   02-SEP-2026, entry version 115.
DE   RecName: Full=Glutamate 5-kinase {ECO:0000255|HAMAP-Rule:MF_00456};
DE            EC=2.7.2.11 {ECO:0000255|HAMAP-Rule:MF_00456};
DE   AltName: Full=Gamma-glutamyl kinase {ECO:0000255|HAMAP-Rule:MF_00456};
DE            Short=GK {ECO:0000255|HAMAP-Rule:MF_00456};
GN   Name=proB {ECO:0000255|HAMAP-Rule:MF_00456};
GN   OrderedLocusNames=PBPRA0839;
OS   Photobacterium profundum (strain SS9).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Gammaproteobacteria; Vibrionales;
OC   Vibrionaceae; Photobacterium.
OX   NCBI_TaxID=298386;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1253 / SS9;
RX   PubMed=15746425; DOI=10.1126/science.1103341;
RA   Vezzi A., Campanaro S., D'Angelo M., Simonato F., Vitulo N., Lauro F.M.,
RA   Cestaro A., Malacrida G., Simionati B., Cannata N., Romualdi C.,
RA   Bartlett D.H., Valle G.;
RT   "Life at depth: Photobacterium profundum genome sequence and expression
RT   analysis.";
RL   Science 307:1459-1461(2005).
CC   -!- FUNCTION: Catalyzes the transfer of a phosphate group to glutamate to
CC       form L-glutamate 5-phosphate. {ECO:0000255|HAMAP-Rule:MF_00456}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-glutamate + ATP = L-glutamyl 5-phosphate + ADP;
CC         Xref=Rhea:RHEA:14877, ChEBI:CHEBI:29985, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:58274, ChEBI:CHEBI:456216; EC=2.7.2.11;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00456};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-proline biosynthesis; L-glutamate
CC       5-semialdehyde from L-glutamate: step 1/2. {ECO:0000255|HAMAP-
CC       Rule:MF_00456}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00456}.
CC   -!- SIMILARITY: Belongs to the glutamate 5-kinase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00456}.
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DR   EMBL; CR378665; CAG19252.1; -; Genomic_DNA.
DR   RefSeq; WP_011217589.1; NC_006370.1.
DR   AlphaFoldDB; Q6LTX3; -.
DR   SMR; Q6LTX3; -.
DR   STRING; 298386.PBPRA0839; -.
DR   KEGG; ppr:PBPRA0839; -.
DR   eggNOG; COG0263; Bacteria.
DR   HOGENOM; CLU_025400_2_0_6; -.
DR   UniPathway; UPA00098; UER00359.
DR   Proteomes; UP000000593; Chromosome 1.
DR   GO; GO:0005829; C:cytosol; IEA:TreeGrafter.
DR   GO; GO:0005524; F:ATP binding; IEA:InterPro.
DR   GO; GO:0004349; F:glutamate 5-kinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0003723; F:RNA binding; IEA:InterPro.
DR   GO; GO:0055129; P:L-proline biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd04242; AAK_G5K_ProB; 1.
DR   CDD; cd21157; PUA_G5K; 1.
DR   FunFam; 2.30.130.10:FF:000003; Glutamate 5-kinase; 1.
DR   FunFam; 3.40.1160.10:FF:000006; Glutamate 5-kinase; 1.
DR   Gene3D; 3.40.1160.10; Acetylglutamate kinase-like; 2.
DR   Gene3D; 2.30.130.10; PUA domain; 1.
DR   HAMAP; MF_00456; ProB; 1.
DR   InterPro; IPR036393; AceGlu_kinase-like_sf.
DR   InterPro; IPR001048; Asp/Glu/Uridylate_kinase.
DR   InterPro; IPR041739; G5K_ProB.
DR   InterPro; IPR001057; Glu/AcGlu_kinase.
DR   InterPro; IPR011529; Glu_5kinase.
DR   InterPro; IPR005715; Glu_5kinase/COase_Synthase.
DR   InterPro; IPR019797; Glutamate_5-kinase_CS.
DR   InterPro; IPR002478; PUA.
DR   InterPro; IPR015947; PUA-like_sf.
DR   InterPro; IPR036974; PUA_sf.
DR   NCBIfam; TIGR01027; proB; 1.
DR   PANTHER; PTHR43654; GLUTAMATE 5-KINASE; 1.
DR   PANTHER; PTHR43654:SF1; ISOPENTENYL PHOSPHATE KINASE; 1.
DR   Pfam; PF00696; AA_kinase; 1.
DR   Pfam; PF01472; PUA; 1.
DR   PIRSF; PIRSF000729; GK; 1.
DR   PRINTS; PR00474; GLU5KINASE.
DR   SMART; SM00359; PUA; 1.
DR   SUPFAM; SSF53633; Carbamate kinase-like; 1.
DR   SUPFAM; SSF88697; PUA domain-like; 1.
DR   PROSITE; PS00902; GLUTAMATE_5_KINASE; 1.
DR   PROSITE; PS50890; PUA; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; ATP-binding; Cytoplasm; Kinase;
KW   Nucleotide-binding; Proline biosynthesis; Reference proteome; Transferase.
FT   CHAIN           1..378
FT                   /note="Glutamate 5-kinase"
FT                   /id="PRO_0000109704"
FT   DOMAIN          286..364
FT                   /note="PUA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         20
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         60
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         147
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         159
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         179..180
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         221..227
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
SQ   SEQUENCE   378 AA;  40523 MW;  81E7943C9C30EDB9 CRC64;
     MTPPLSDKQT LPPKQTIVVK LGTSVLTGGT LKLDRAHMVE LVRQCAYLRR YGHKVIIVTS
     GAIAAGREHL DYPELPKTMA SKQLLAAVGQ SRLIQEWESL FGIYGLHVGQ MLLTRADLDD
     RERYLNARDM LIALLDNGII PVVNENDAVA TTEIKVGDND NLSALVGILG GADKLLLLTD
     QPGLFTADPR NNPDAELIRE VHTIDETLRK LAGGSAGGLG TGGMATKLQA ADVARRAGIE
     VIIAAGSRPD VISDLASGES VGTRFLPLDT PLESRKRWIL AGPPPAGDIV IDAGAAKAVL
     ERGSSLLSKG ISEVKGAFER GEVARIFDTN GVLLARGICR YSSRDMAMIV GKHSQEIYKV
     LGYEYGPVAI HRDDLVVI
//