ID   P5CR_HELPJ              Reviewed;         257 AA.
AC   Q9ZK56;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1999, sequence version 1.
DT   25-MAY-2022, entry version 122.
DE   RecName: Full=Pyrroline-5-carboxylate reductase {ECO:0000255|HAMAP-Rule:MF_01925};
DE            Short=P5C reductase {ECO:0000255|HAMAP-Rule:MF_01925};
DE            Short=P5CR {ECO:0000255|HAMAP-Rule:MF_01925};
DE            EC=1.5.1.2 {ECO:0000255|HAMAP-Rule:MF_01925};
DE   AltName: Full=PCA reductase {ECO:0000255|HAMAP-Rule:MF_01925};
GN   Name=proC {ECO:0000255|HAMAP-Rule:MF_01925}; OrderedLocusNames=jhp_1085;
OS   Helicobacter pylori (strain J99 / ATCC 700824) (Campylobacter pylori J99).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Helicobacter.
OX   NCBI_TaxID=85963;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=J99 / ATCC 700824;
RX   PubMed=9923682; DOI=10.1038/16495;
RA   Alm R.A., Ling L.-S.L., Moir D.T., King B.L., Brown E.D., Doig P.C.,
RA   Smith D.R., Noonan B., Guild B.C., deJonge B.L., Carmel G., Tummino P.J.,
RA   Caruso A., Uria-Nickelsen M., Mills D.M., Ives C., Gibson R., Merberg D.,
RA   Mills S.D., Jiang Q., Taylor D.E., Vovis G.F., Trust T.J.;
RT   "Genomic sequence comparison of two unrelated isolates of the human gastric
RT   pathogen Helicobacter pylori.";
RL   Nature 397:176-180(1999).
CC   -!- FUNCTION: Catalyzes the reduction of 1-pyrroline-5-carboxylate (PCA) to
CC       L-proline. {ECO:0000255|HAMAP-Rule:MF_01925}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-proline + NADP(+) = 1-pyrroline-5-carboxylate + 2 H(+) +
CC         NADPH; Xref=Rhea:RHEA:14109, ChEBI:CHEBI:15378, ChEBI:CHEBI:15893,
CC         ChEBI:CHEBI:57783, ChEBI:CHEBI:58349, ChEBI:CHEBI:60039; EC=1.5.1.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01925};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-proline + NAD(+) = 1-pyrroline-5-carboxylate + 2 H(+) +
CC         NADH; Xref=Rhea:RHEA:14105, ChEBI:CHEBI:15378, ChEBI:CHEBI:15893,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:60039; EC=1.5.1.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01925};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-proline biosynthesis; L-proline
CC       from L-glutamate 5-semialdehyde: step 1/1. {ECO:0000255|HAMAP-
CC       Rule:MF_01925}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01925}.
CC   -!- SIMILARITY: Belongs to the pyrroline-5-carboxylate reductase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01925}.
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DR   EMBL; AE001439; AAD06667.1; -; Genomic_DNA.
DR   PIR; E71850; E71850.
DR   RefSeq; WP_000404501.1; NZ_CP011330.1.
DR   AlphaFoldDB; Q9ZK56; -.
DR   SMR; Q9ZK56; -.
DR   STRING; 85963.jhp_1085; -.
DR   EnsemblBacteria; AAD06667; AAD06667; jhp_1085.
DR   KEGG; hpj:jhp_1085; -.
DR   PATRIC; fig|85963.30.peg.1497; -.
DR   eggNOG; COG0345; Bacteria.
DR   OMA; EQICTPK; -.
DR   UniPathway; UPA00098; UER00361.
DR   Proteomes; UP000000804; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004735; F:pyrroline-5-carboxylate reductase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0055129; P:L-proline biosynthetic process; IEA:UniProtKB-UniPathway.
DR   HAMAP; MF_01925; P5C_reductase; 1.
DR   InterPro; IPR008927; 6-PGluconate_DH-like_C_sf.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   InterPro; IPR028939; P5C_Rdtase_cat_N.
DR   InterPro; IPR029036; P5CR_dimer.
DR   InterPro; IPR000304; Pyrroline-COOH_reductase.
DR   PANTHER; PTHR11645; PTHR11645; 1.
DR   Pfam; PF03807; F420_oxidored; 1.
DR   Pfam; PF14748; P5CR_dimer; 1.
DR   PIRSF; PIRSF000193; Pyrrol-5-carb_rd; 1.
DR   SUPFAM; SSF48179; SSF48179; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   TIGRFAMs; TIGR00112; proC; 1.
DR   PROSITE; PS00521; P5CR; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; NADP; Oxidoreductase;
KW   Proline biosynthesis.
FT   CHAIN           1..257
FT                   /note="Pyrroline-5-carboxylate reductase"
FT                   /id="PRO_0000187292"
SQ   SEQUENCE   257 AA;  28203 MW;  9F219D8DB196F92A CRC64;
     MEILQFIGYG NMAQAILEGS HEILSKRFIL EITGRNPEKI APFLQEKNIQ AQIVPYKDAI
     DIHQKFVFLL FKPYNLKDFN YQGQAKSVLS ALAGVNFEAL SNAINSLHYL KCMPNIASKF
     ALSSTAVCEK SVAPSISEKA LNIIESFGNC VRVGNEEQVD SSVATNGSAL AFLSLVASSL
     KDAGIREGLN AKDSLELVKM SFKGFAKLLE KERPEMIIEQ ICTPKGATIE GLSVLEKKGV
     RGAFIKACHE SVKKMRL