ID   PROB_SALRD              Reviewed;         376 AA.
AC   Q2S355;
DT   17-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 1.
DT   03-AUG-2022, entry version 99.
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}; OrderedLocusNames=SRU_1252;
OS   Salinibacter ruber (strain DSM 13855 / M31).
OC   Bacteria; Bacteroidetes; Bacteroidetes Order II. Incertae sedis;
OC   Rhodothermaceae; Salinibacter.
OX   NCBI_TaxID=309807;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 13855 / CECT 5946 / M31;
RX   PubMed=16330755; DOI=10.1073/pnas.0509073102;
RA   Mongodin E.F., Nelson K.E., Daugherty S., DeBoy R.T., Wister J., Khouri H.,
RA   Weidman J., Walsh D.A., Papke R.T., Sanchez Perez G., Sharma A.K.,
RA   Nesbo C.L., MacLeod D., Bapteste E., Doolittle W.F., Charlebois R.L.,
RA   Legault B., Rodriguez-Valera F.;
RT   "The genome of Salinibacter ruber: convergence and gene exchange among
RT   hyperhalophilic bacteria and archaea.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:18147-18152(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=ATP + L-glutamate = ADP + L-glutamyl 5-phosphate;
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; CP000159; ABC44492.1; -; Genomic_DNA.
DR   RefSeq; WP_011404004.1; NC_007677.1.
DR   RefSeq; YP_445376.1; NC_007677.1.
DR   AlphaFoldDB; Q2S355; -.
DR   SMR; Q2S355; -.
DR   STRING; 309807.SRU_1252; -.
DR   EnsemblBacteria; ABC44492; ABC44492; SRU_1252.
DR   KEGG; sru:SRU_1252; -.
DR   PATRIC; fig|309807.25.peg.1298; -.
DR   eggNOG; COG0263; Bacteria.
DR   HOGENOM; CLU_025400_2_1_10; -.
DR   OMA; TVIHRDN; -.
DR   UniPathway; UPA00098; UER00359.
DR   Proteomes; UP000008674; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
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-UniPathway.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   CDD; cd04242; AAK_G5K_ProB; 1.
DR   Gene3D; 2.30.130.10; -; 1.
DR   Gene3D; 3.40.1160.10; -; 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; IPR002478; PUA.
DR   InterPro; IPR015947; PUA-like_sf.
DR   InterPro; IPR036974; PUA_sf.
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; SSF53633; 1.
DR   SUPFAM; SSF88697; SSF88697; 1.
DR   TIGRFAMs; TIGR01027; proB; 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..376
FT                   /note="Glutamate 5-kinase"
FT                   /id="PRO_0000253000"
FT   DOMAIN          280..361
FT                   /note="PUA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         15
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         55
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         141
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         153
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         173..174
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         215..221
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
SQ   SEQUENCE   376 AA;  40118 MW;  B43C4CD281DD3A15 CRC64;
     MATVALPDWT RAVVKVGSAL VAPDDRGCST THLLPIARFV IQSRRQGKEV ILVSSGAVAA
     GLAEQGRGGP GTGLSIPERQ ALAALGQPLL MAHWRRLFDV PCAQVLLTYD DLQRRARFVN
     AKNTIAELLD RDTLPIVNEN DTVATEELRV GDNDNLAAYV AVLAEADLLV ICSDVDGLYT
     ADPHDDPDAE RLPAVDAITD EIYDMVGPSH RKVATGGMQT KVEAAEKATD RGIDTVLVNG
     TKGGHLDALG RGEMPGTLFR QAEQPLPARK HWMLHALPSA GRLTVDAGAA DALRHEGASL
     LPSGIVAVEG RFARGDAVEI AVEKEGNRTR VAKGITQYGA ADLERIQGRQ SHAIAEVLDE
     APADYVVHRD DLVVEA