ID   POR_AVESA               Reviewed;         313 AA.
AC   P15904;
DT   01-APR-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-1990, sequence version 1.
DT   25-MAY-2022, entry version 109.
DE   RecName: Full=Protochlorophyllide reductase;
DE            Short=PCR;
DE            EC=1.3.1.33;
DE   AltName: Full=NADPH-protochlorophyllide oxidoreductase;
DE            Short=POR;
DE   Flags: Fragment;
OS   Avena sativa (Oat).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC   Pooideae; Poodae; Poeae; Aveninae; Avena.
OX   NCBI_TaxID=4498;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=cv. Peniarth; TISSUE=Etiolated leaf;
RX   PubMed=1689568; DOI=10.1042/bj2650789;
RA   Darrah P.M., Kay S.A., Teakle G.R., Griffiths W.T.;
RT   "Cloning and sequencing of protochlorophyllide reductase.";
RL   Biochem. J. 265:789-798(1990).
CC   -!- FUNCTION: Phototransformation of protochlorophyllide (Pchlide) to
CC       chlorophyllide (Chlide).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=chlorophyllide a + NADP(+) = H(+) + NADPH +
CC         protochlorophyllide a; Xref=Rhea:RHEA:11132, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:57783, ChEBI:CHEBI:58349, ChEBI:CHEBI:83348,
CC         ChEBI:CHEBI:83350; EC=1.3.1.33;
CC   -!- PATHWAY: Porphyrin-containing compound metabolism; chlorophyll
CC       biosynthesis.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- SIMILARITY: Belongs to the short-chain dehydrogenases/reductases (SDR)
CC       family. POR subfamily. {ECO:0000305}.
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DR   EMBL; X17067; CAA34913.1; -; mRNA.
DR   PIR; S08406; S08406.
DR   AlphaFoldDB; P15904; -.
DR   SMR; P15904; -.
DR   BRENDA; 1.3.1.33; 588.
DR   UniPathway; UPA00668; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0016630; F:protochlorophyllide reductase activity; IEA:UniProtKB-EC.
DR   GO; GO:0015995; P:chlorophyll biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   InterPro; IPR005979; Prochl_reduct.
DR   InterPro; IPR002347; SDR_fam.
DR   PANTHER; PTHR44419; PTHR44419; 1.
DR   Pfam; PF00106; adh_short; 1.
DR   PRINTS; PR00081; GDHRDH.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   TIGRFAMs; TIGR01289; LPOR; 1.
PE   2: Evidence at transcript level;
KW   Chlorophyll biosynthesis; Chloroplast; NADP; Oxidoreductase;
KW   Photosynthesis; Plastid.
FT   CHAIN           <1..313
FT                   /note="Protochlorophyllide reductase"
FT                   /id="PRO_0000219915"
FT   NON_TER         1
SQ   SEQUENCE   313 AA;  33797 MW;  4F81BA5DC8D1487C CRC64;
     VVVITGASSG LGLAAAKALA ETGKWHVVMA CRDFLKASKA AKAAGMADGS YTVMHLDLAS
     LDSVRQFVDA FRRAEMPLDV LVCNAAIYRP TARKPTFTAE GVEMSVGVNH LGHFLLARLL
     LEDLQKSDYP SRRLVIVGSI TGNDNTLAGN VPPKANLGDL RGLAGGLTGA SGSAMIDGDE
     SFDGAKAYKD SKVCNMLTMQ EFHRRYHEDT GITFSSLYPG CIATTGLFRE HIPLFRTLFP
     PFQKFVTKGF VSEAESGKRL AQVVGEPSLT KSGVYWSWNK DSASFENQLS QEASDPEKAR
     KVWELSEKLV GLA