ID   PROB_PROM2              Reviewed;         360 AA.
AC   A8G4G7;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-NOV-2007, sequence version 1.
DT   03-AUG-2022, entry version 77.
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=P9215_08831;
OS   Prochlorococcus marinus (strain MIT 9215).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=93060;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9215;
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; CP000825; ABV50498.1; -; Genomic_DNA.
DR   RefSeq; WP_012007596.1; NC_009840.1.
DR   AlphaFoldDB; A8G4G7; -.
DR   SMR; A8G4G7; -.
DR   STRING; 93060.P9215_08831; -.
DR   EnsemblBacteria; ABV50498; ABV50498; P9215_08831.
DR   KEGG; pmh:P9215_08831; -.
DR   eggNOG; COG0263; Bacteria.
DR   HOGENOM; CLU_025400_2_0_3; -.
DR   OMA; TVIHRDN; -.
DR   OrthoDB; 1480250at2; -.
DR   UniPathway; UPA00098; UER00359.
DR   Proteomes; UP000002014; 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; Transferase.
FT   CHAIN           1..360
FT                   /note="Glutamate 5-kinase"
FT                   /id="PRO_1000081089"
FT   DOMAIN          275..356
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         210..216
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00456"
SQ   SEQUENCE   360 AA;  39323 MW;  6417719153D2571C CRC64;
     MKTWVIKIGT SILRGTEETS TEEVIETLSR SFTSFLSKGN KIILVTSGAV GLGCQKLNIE
     TRPNDLSTLQ ATAAVGQVNL MSLYDKVFNK LGHNIAQILI TKADFNSRKS FNNASKTLKK
     LIDLNVIPIV NENDTVANEE LKYGDNDTLS ALVALAINAN KLILLTDIEN LYSKDPRNNN
     DAQPIKEVHN SELKEIKDKN IKNSNNEWGT GGIATKLISA EIATKGGVEV QLVDGTNKKN
     LIEIFNDNKI GTLFYPVEKP IRNKKSWLSH AIQTVGKITL DDGASFAIKR KGASLLAVGV
     KDVEGNFTIN QAVKIVNTND KEVAKGLVSI SSDKLRSILN NKENNNSSII VVHRDVLALS