ID   PROA_RUEST              Reviewed;         421 AA.
AC   Q1GHC8;
DT   17-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 2.
DT   25-MAY-2022, entry version 107.
DE   RecName: Full=Gamma-glutamyl phosphate reductase {ECO:0000255|HAMAP-Rule:MF_00412};
DE            Short=GPR {ECO:0000255|HAMAP-Rule:MF_00412};
DE            EC=1.2.1.41 {ECO:0000255|HAMAP-Rule:MF_00412};
DE   AltName: Full=Glutamate-5-semialdehyde dehydrogenase {ECO:0000255|HAMAP-Rule:MF_00412};
DE   AltName: Full=Glutamyl-gamma-semialdehyde dehydrogenase {ECO:0000255|HAMAP-Rule:MF_00412};
DE            Short=GSA dehydrogenase {ECO:0000255|HAMAP-Rule:MF_00412};
GN   Name=proA {ECO:0000255|HAMAP-Rule:MF_00412}; OrderedLocusNames=TM1040_1205;
OS   Ruegeria sp. (strain TM1040) (Silicibacter sp.).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Roseobacteraceae; Ruegeria; unclassified Ruegeria.
OX   NCBI_TaxID=292414;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TM1040;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Brettin T., Bruce D., Han C., Tapia R., Goodwin L., Thompson L.S.,
RA   Gilna P., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA   Belas R., Moran M.A., Buchan A., Gonzalez J.M., Schell M.A., Sun F.,
RA   Richardson P.;
RT   "Complete sequence of chromosome of Silicibacter sp. TM1040.";
RL   Submitted (MAY-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the NADPH-dependent reduction of L-glutamate 5-
CC       phosphate into L-glutamate 5-semialdehyde and phosphate. The product
CC       spontaneously undergoes cyclization to form 1-pyrroline-5-carboxylate.
CC       {ECO:0000255|HAMAP-Rule:MF_00412}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-glutamate 5-semialdehyde + NADP(+) + phosphate = H(+) + L-
CC         glutamyl 5-phosphate + NADPH; Xref=Rhea:RHEA:19541,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:43474, ChEBI:CHEBI:57783,
CC         ChEBI:CHEBI:58066, ChEBI:CHEBI:58274, ChEBI:CHEBI:58349; EC=1.2.1.41;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00412};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-proline biosynthesis; L-glutamate
CC       5-semialdehyde from L-glutamate: step 2/2. {ECO:0000255|HAMAP-
CC       Rule:MF_00412}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00412}.
CC   -!- SIMILARITY: Belongs to the gamma-glutamyl phosphate reductase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00412}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABF63938.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000377; ABF63938.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_044027091.1; NC_008044.1.
DR   AlphaFoldDB; Q1GHC8; -.
DR   SMR; Q1GHC8; -.
DR   STRING; 292414.TM1040_1205; -.
DR   EnsemblBacteria; ABF63938; ABF63938; TM1040_1205.
DR   KEGG; sit:TM1040_1205; -.
DR   eggNOG; COG0014; Bacteria.
DR   HOGENOM; CLU_030231_0_0_5; -.
DR   OrthoDB; 223669at2; -.
DR   UniPathway; UPA00098; UER00360.
DR   Proteomes; UP000000636; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004350; F:glutamate-5-semialdehyde dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0050661; F:NADP binding; IEA:InterPro.
DR   GO; GO:0055129; P:L-proline biosynthetic process; IEA:UniProtKB-UniPathway.
DR   CDD; cd07079; ALDH_F18-19_ProA-GPR; 1.
DR   Gene3D; 3.40.309.10; -; 1.
DR   Gene3D; 3.40.605.10; -; 1.
DR   HAMAP; MF_00412; ProA; 1.
DR   InterPro; IPR016161; Ald_DH/histidinol_DH.
DR   InterPro; IPR016163; Ald_DH_C.
DR   InterPro; IPR016162; Ald_DH_N.
DR   InterPro; IPR015590; Aldehyde_DH_dom.
DR   InterPro; IPR012134; Glu-5-SA_DH.
DR   InterPro; IPR000965; GPR_dom.
DR   Pfam; PF00171; Aldedh; 1.
DR   PIRSF; PIRSF000151; GPR; 1.
DR   SUPFAM; SSF53720; SSF53720; 1.
DR   TIGRFAMs; TIGR00407; proA; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; NADP; Oxidoreductase;
KW   Proline biosynthesis; Reference proteome.
FT   CHAIN           1..421
FT                   /note="Gamma-glutamyl phosphate reductase"
FT                   /id="PRO_0000252592"
SQ   SEQUENCE   421 AA;  44545 MW;  AF218E2D76D1B86C CRC64;
     MKDLENIPAL MEDIGKRAKA AAQQLATASA AQKEQALNAA ADAVWAQRGE IIAANAKDLE
     FGRDKGLSSA MMDRLMLDEA RIQGIVDGLR AVAAQADPVG AVLDEWTQPS GLRIQRVRTP
     LGVIGVIYES RPNVTADAGA LCLKSGNAVI LRGGSESLHS AQAIHGCLAA GLRAADLPED
     AVQLVPTRDR AAVQELLTMT AYVDVIVPRG GKGLVGLVQR EARVPVFAHL EGIVHIYLDK
     DADRKKAIDV VLNAKTRRTG ICGAAECLLI HEDIADSIGK DVLDLLAMGG VEIHAEEGLP
     GPDSMQVATS EDWGKEYLDA IIAAKKVASI DEAIAHIRRY HSAHTDCIIT ENDAAVAQFF
     SELDSAILMH NASTQFADGG EFGMGAEIGI ATGKMHARGP VGATQLTSFK YLVRGDGTVR
     A