ID   P5CR_THET2              Reviewed;         261 AA.
AC   P54893;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   25-MAY-2022, entry version 121.
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=TT_C0500;
OS   Thermus thermophilus (strain ATCC BAA-163 / DSM 7039 / HB27).
OC   Bacteria; Deinococcus-Thermus; Deinococci; Thermales; Thermaceae; Thermus.
OX   NCBI_TaxID=262724;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8123043; DOI=10.1006/bbrc.1994.1244;
RA   Hoshino T., Kosuge T., Hidaka Y., Tabata K., Nakahara T.;
RT   "Molecular cloning and sequence analysis of the proC gene encoding delta 1-
RT   pyrroline-5-carboxylate reductase from an extremely thermophilic
RT   eubacterium Thermus thermophilus.";
RL   Biochem. Biophys. Res. Commun. 199:410-417(1994).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-163 / DSM 7039 / HB27;
RX   PubMed=15064768; DOI=10.1038/nbt956;
RA   Henne A., Brueggemann H., Raasch C., Wiezer A., Hartsch T., Liesegang H.,
RA   Johann A., Lienard T., Gohl O., Martinez-Arias R., Jacobi C.,
RA   Starkuviene V., Schlenczeck S., Dencker S., Huber R., Klenk H.-P.,
RA   Kramer W., Merkl R., Gottschalk G., Fritz H.-J.;
RT   "The genome sequence of the extreme thermophile Thermus thermophilus.";
RL   Nat. Biotechnol. 22:547-553(2004).
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.
CC   -!- SIMILARITY: Belongs to the pyrroline-5-carboxylate reductase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01925}.
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DR   EMBL; D25413; BAA05001.1; -; Genomic_DNA.
DR   EMBL; AE017221; AAS80848.1; -; Genomic_DNA.
DR   RefSeq; WP_011172945.1; NC_005835.1.
DR   AlphaFoldDB; P54893; -.
DR   SMR; P54893; -.
DR   STRING; 262724.TT_C0500; -.
DR   EnsemblBacteria; AAS80848; AAS80848; TT_C0500.
DR   KEGG; tth:TT_C0500; -.
DR   eggNOG; COG0345; Bacteria.
DR   HOGENOM; CLU_042344_3_0_0; -.
DR   OMA; VVRVMTN; -.
DR   OrthoDB; 1349288at2; -.
DR   UniPathway; UPA00098; UER00361.
DR   Proteomes; UP000000592; 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..261
FT                   /note="Pyrroline-5-carboxylate reductase"
FT                   /id="PRO_0000187309"
SQ   SEQUENCE   261 AA;  27819 MW;  3435C3A8F4299B3E CRC64;
     MRLAFVGLGK MGRSILKGAL ERGFLRPEEV GVLGRTPERS RELAEPFGVR PLTRADLGMA
     ERVLIAVQPR DFPALAPEIA HHRLGYISIM AGISTSVLAR RLDNRRVVRA MPNLAVVIGE
     SSTALTALKE AREAEDLAFA RALFATVGDV YEIPEHLFDA FTGMSASAPA YLAVVAEALA
     DAGVKMGMPR ALALRLAADA LAATGELLKG RHPAQVKDEV ASPGGTTIHG LHALEARAVR
     AAFYEAVEAA TRRGHELGES E