ID CHLL_OLTVI Reviewed; 311 AA.
AC Q20EX9;
DT 06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT 18-APR-2006, sequence version 1.
DT 13-SEP-2023, entry version 76.
DE RecName: Full=Light-independent protochlorophyllide reductase iron-sulfur ATP-binding protein {ECO:0000255|HAMAP-Rule:MF_00355};
DE Short=DPOR subunit L {ECO:0000255|HAMAP-Rule:MF_00355};
DE Short=LI-POR subunit L {ECO:0000255|HAMAP-Rule:MF_00355};
DE EC=1.3.7.7 {ECO:0000255|HAMAP-Rule:MF_00355};
GN Name=chlL {ECO:0000255|HAMAP-Rule:MF_00355};
OS Oltmannsiellopsis viridis (Marine flagellate) (Oltmannsiella viridis).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Chlorophyta; Ulvophyceae; Oltmannsiellopsidales;
OC Oltmannsiellopsidaceae; Oltmannsiellopsis.
OX NCBI_TaxID=51324;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=16472375; DOI=10.1186/1741-7007-4-3;
RA Pombert J.-F., Lemieux C., Turmel M.;
RT "The complete chloroplast DNA sequence of the green alga Oltmannsiellopsis
RT viridis reveals a distinctive quadripartite architecture in the chloroplast
RT genome of early diverging ulvophytes.";
RL BMC Biol. 4:3-3(2006).
CC -!- FUNCTION: Component of the dark-operative protochlorophyllide reductase
CC (DPOR) that uses Mg-ATP and reduced ferredoxin to reduce ring D of
CC protochlorophyllide (Pchlide) to form chlorophyllide a (Chlide). This
CC reaction is light-independent. The L component serves as a unique
CC electron donor to the NB-component of the complex, and binds Mg-ATP.
CC {ECO:0000255|HAMAP-Rule:MF_00355}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 ADP + chlorophyllide a + oxidized 2[4Fe-4S]-[ferredoxin] + 2
CC phosphate = 2 ATP + 2 H2O + protochlorophyllide a + reduced 2[4Fe-
CC 4S]-[ferredoxin]; Xref=Rhea:RHEA:28202, Rhea:RHEA-COMP:10002,
CC Rhea:RHEA-COMP:10004, ChEBI:CHEBI:15377, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:33722, ChEBI:CHEBI:33723, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:83348, ChEBI:CHEBI:83350, ChEBI:CHEBI:456216; EC=1.3.7.7;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00355};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00355};
CC Note=Binds 1 [4Fe-4S] cluster per dimer. {ECO:0000255|HAMAP-
CC Rule:MF_00355};
CC -!- PATHWAY: Porphyrin-containing compound metabolism; chlorophyll
CC biosynthesis (light-independent). {ECO:0000255|HAMAP-Rule:MF_00355}.
CC -!- SUBUNIT: Homodimer. Protochlorophyllide reductase is composed of three
CC subunits; ChlL, ChlN and ChlB. {ECO:0000255|HAMAP-Rule:MF_00355}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC -!- SIMILARITY: Belongs to the NifH/BchL/ChlL family. {ECO:0000255|HAMAP-
CC Rule:MF_00355}.
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DR EMBL; DQ291132; ABB81934.1; -; Genomic_DNA.
DR RefSeq; YP_635866.1; NC_008099.1.
DR AlphaFoldDB; Q20EX9; -.
DR SMR; Q20EX9; -.
DR GeneID; 4100113; -.
DR UniPathway; UPA00670; -.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0016730; F:oxidoreductase activity, acting on iron-sulfur proteins as donors; IEA:InterPro.
DR GO; GO:0016636; F:oxidoreductase activity, acting on the CH-CH group of donors, iron-sulfur protein as acceptor; IEA:UniProtKB-UniRule.
DR GO; GO:0036068; P:light-independent chlorophyll biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0019685; P:photosynthesis, dark reaction; IEA:InterPro.
DR CDD; cd02032; Bchl-like; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR HAMAP; MF_00355; ChlL_BchL; 1.
DR InterPro; IPR030655; NifH/chlL_CS.
DR InterPro; IPR000392; NifH/frxC.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR005971; Protochlorophyllide_ATP-bd.
DR NCBIfam; TIGR01281; DPOR_bchL; 1.
DR PANTHER; PTHR42864; LIGHT-INDEPENDENT PROTOCHLOROPHYLLIDE REDUCTASE IRON-SULFUR ATP-BINDING PROTEIN; 1.
DR PANTHER; PTHR42864:SF2; LIGHT-INDEPENDENT PROTOCHLOROPHYLLIDE REDUCTASE IRON-SULFUR ATP-BINDING PROTEIN; 1.
DR Pfam; PF00142; Fer4_NifH; 1.
DR PIRSF; PIRSF000363; Nitrogenase_iron; 1.
DR PRINTS; PR00091; NITROGNASEII.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR PROSITE; PS00746; NIFH_FRXC_1; 1.
DR PROSITE; PS00692; NIFH_FRXC_2; 1.
DR PROSITE; PS51026; NIFH_FRXC_3; 1.
PE 3: Inferred from homology;
KW 4Fe-4S; ATP-binding; Chlorophyll biosynthesis; Chloroplast; Iron;
KW Iron-sulfur; Magnesium; Metal-binding; Nucleotide-binding; Oxidoreductase;
KW Photosynthesis; Plastid.
FT CHAIN 1..311
FT /note="Light-independent protochlorophyllide reductase
FT iron-sulfur ATP-binding protein"
FT /id="PRO_0000275265"
FT BINDING 10..15
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00355"
FT BINDING 14
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00355"
FT BINDING 39
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00355"
FT BINDING 95
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00355"
FT BINDING 129
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00355"
FT BINDING 180..181
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00355"
SQ SEQUENCE 311 AA; 34070 MW; C4D16347ADD0D979 CRC64;
MKLAVYGKGG IGKSTVSCNL SIALAKRGKK VLQIGCDPKH DSTFTLTGFL IPTIIDTLQS
KDYHYEDIWP EDVIYAGYGG VDCVEAGGPP AGAGCGGYVV GETVKLLKEL NAFYEYDVIL
FDVLGDVVCG GFAAPLNYAD YCLIVTDNGF DALFAANRIV ASVREKARTH PLRLAGLIGN
RTATRELIDK YVEVCRMPVL EVLPLIEEIR ISRVKGKTIF ELEELEPNLK SIGEYYLNIA
DQLLAQPEGI VPQELADRDL FTLLSSFYLS DQQTEKAYSS IQHVHGSVGE GCSAQNSEQN
QTANDYSFEF I
//
