ID   PROA_POLNA              Reviewed;         430 AA.
AC   A1VTR9;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 91.
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=Pnap_3751;
OS   Polaromonas naphthalenivorans (strain CJ2).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Polaromonas.
OX   NCBI_TaxID=365044;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CJ2;
RX   PubMed=19453698; DOI=10.1111/j.1462-2920.2009.01947.x;
RA   Yagi J.M., Sims D., Brettin T., Bruce D., Madsen E.L.;
RT   "The genome of Polaromonas naphthalenivorans strain CJ2, isolated from coal
RT   tar-contaminated sediment, reveals physiological and metabolic versatility
RT   and evolution through extensive horizontal gene transfer.";
RL   Environ. Microbiol. 11:2253-2270(2009).
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}.
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DR   EMBL; CP000529; ABM39047.1; -; Genomic_DNA.
DR   RefSeq; WP_011803113.1; NC_008781.1.
DR   AlphaFoldDB; A1VTR9; -.
DR   SMR; A1VTR9; -.
DR   STRING; 365044.Pnap_3751; -.
DR   EnsemblBacteria; ABM39047; ABM39047; Pnap_3751.
DR   KEGG; pna:Pnap_3751; -.
DR   eggNOG; COG0014; Bacteria.
DR   HOGENOM; CLU_030231_0_0_4; -.
DR   OMA; PGVCNAM; -.
DR   OrthoDB; 223669at2; -.
DR   UniPathway; UPA00098; UER00360.
DR   Proteomes; UP000000644; 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; IPR020593; G-glutamylP_reductase_CS.
DR   InterPro; IPR012134; Glu-5-SA_DH.
DR   InterPro; IPR000965; GPR_dom.
DR   Pfam; PF00171; Aldedh; 2.
DR   PIRSF; PIRSF000151; GPR; 1.
DR   SUPFAM; SSF53720; SSF53720; 1.
DR   TIGRFAMs; TIGR00407; proA; 1.
DR   PROSITE; PS01223; PROA; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; NADP; Oxidoreductase;
KW   Proline biosynthesis; Reference proteome.
FT   CHAIN           1..430
FT                   /note="Gamma-glutamyl phosphate reductase"
FT                   /id="PRO_1000049975"
SQ   SEQUENCE   430 AA;  45732 MW;  62E3ABDF076FB30A CRC64;
     MNALNIADYM QTLGLQAKTA SAQVARAPAA IKNRALKNLA ALLRQNLGSL QAANQRDLER
     ASAAGLAGPL LDRLKLSAKD LETVALGCEQ LAAMPDVIGE IIGMKEQPSG IRVGQMRVPI
     GVFGMIYESR PNVTIEAASL AIKSGNACIL RGGSEAIESN KALAALVRQA LEQAGLPADA
     VQLVGTTDRE AVGQLIAMPQ YVDVIIPRGG KGLIERISRD AKVPVIKHLD GNCHVYVDDP
     CDIAMAVKIA DNAKTQKYSP CNATEGLLVA RGVADAFLPQ IAAIYAAKGV EMRCDEAAAH
     ILHAHPAIES IANIVPASEQ DWYEEYLAPV ISIKVVSGVE EAIAHINRYS SHHTDAILTR
     DHMHAQQFLR EVDSASVMVN ASTRFADGFE FGLGAEIGIS TDKFHARGPV GIEGLTSLKY
     VVLGQGEVRT