ID   PROB_PROMT              Reviewed;         360 AA.
AC   Q46LE0;
DT   04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2005, sequence version 1.
DT   03-AUG-2022, entry version 93.
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=PMN2A_0196;
OS   Prochlorococcus marinus (strain NATL2A).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=59920;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NATL2A;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
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; CP000095; AAZ57688.1; -; Genomic_DNA.
DR   RefSeq; WP_011293730.1; NC_007335.2.
DR   AlphaFoldDB; Q46LE0; -.
DR   SMR; Q46LE0; -.
DR   STRING; 59920.PMN2A_0196; -.
DR   EnsemblBacteria; AAZ57688; AAZ57688; PMN2A_0196.
DR   KEGG; pmn:PMN2A_0196; -.
DR   HOGENOM; CLU_025400_2_0_3; -.
DR   OMA; TVIHRDN; -.
DR   OrthoDB; 1480250at2; -.
DR   PhylomeDB; Q46LE0; -.
DR   UniPathway; UPA00098; UER00359.
DR   Proteomes; UP000002535; 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; IPR019797; Glutamate_5-kinase_CS.
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; 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..360
FT                   /note="Glutamate 5-kinase"
FT                   /id="PRO_0000230054"
FT   DOMAIN          273..344
FT                   /note="PUA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         7
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         47
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         134
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         146
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         166..167
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
FT   BINDING         208..214
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
SQ   SEQUENCE   360 AA;  39032 MW;  98C3A1C47895F51E CRC64;
     MTTWVIKIGT SLLRGNDKYT TFDVINDYCS YISKAQRNGD KIILVSSGAV GLGCHQMRFK
     TRPKEIISLQ ASAAIGQLHL MALYEKAMSS FGYKVAQILL TRSELGSRNS YNSASQTLKR
     LLEWDVIPIV NENDITSDEE LKYGDNDTLS ALVATAISAD QLILLTDIDH LYSSDPKINS
     KAKPIKDINN SKELNNLELA NEQTSWGTGG IKTKLTAAKI ATESGIKVQL ADGRDPKILG
     ELLDGKKIGT VFHPNPNPIG NRKSWLAHAI KPVGEIHLDD GASEAIKNKG ASLLLVGVKK
     VSGDFIANQP VKVINTEGEE FAKGICSMSS DAIKIGINSR SETTGSPLVI HRDVLVLTSE