ID A0A0D8ZV40_9CYAN Unreviewed; 466 AA.
AC A0A0D8ZV40;
DT 27-MAY-2015, integrated into UniProtKB/TrEMBL.
DT 27-MAY-2015, sequence version 1.
DT 27-MAR-2024, entry version 25.
DE RecName: Full=Light-independent protochlorophyllide reductase subunit N {ECO:0000256|HAMAP-Rule:MF_00352};
DE Short=DPOR subunit N {ECO:0000256|HAMAP-Rule:MF_00352};
DE Short=LI-POR subunit N {ECO:0000256|HAMAP-Rule:MF_00352};
DE EC=1.3.7.7 {ECO:0000256|HAMAP-Rule:MF_00352};
GN Name=chlN {ECO:0000256|HAMAP-Rule:MF_00352};
GN ORFNames=UH38_05895 {ECO:0000313|EMBL:KJH72648.1};
OS Aliterella atlantica CENA595.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Chroococcidiopsidales;
OC Aliterellaceae; Aliterella.
OX NCBI_TaxID=1618023 {ECO:0000313|EMBL:KJH72648.1, ECO:0000313|Proteomes:UP000032452};
RN [1] {ECO:0000313|EMBL:KJH72648.1, ECO:0000313|Proteomes:UP000032452}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CENA595 {ECO:0000313|EMBL:KJH72648.1,
RC ECO:0000313|Proteomes:UP000032452};
RA Rigonato J., Alvarenga D.O., Branco L.H., Varani A.M., Brandini F.P.,
RA Fiore M.F.;
RT "Draft genome of a novel marine cyanobacterium (Chroococcales) isolated
RT from South Atlantic Ocean.";
RL Submitted (FEB-2015) to the EMBL/GenBank/DDBJ databases.
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 NB-protein (ChlN-ChlB) is the
CC catalytic component of the complex. {ECO:0000256|HAMAP-Rule:MF_00352}.
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:0000256|HAMAP-Rule:MF_00352};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00352};
CC Note=Binds 1 [4Fe-4S] cluster per heterodimer. The cluster is bound at
CC the heterodimer interface by residues from both subunits.
CC {ECO:0000256|HAMAP-Rule:MF_00352};
CC -!- PATHWAY: Porphyrin-containing compound metabolism; chlorophyll
CC biosynthesis (light-independent). {ECO:0000256|HAMAP-Rule:MF_00352}.
CC -!- SUBUNIT: Protochlorophyllide reductase is composed of three subunits;
CC ChlL, ChlN and ChlB. Forms a heterotetramer of two ChlB and two ChlN
CC subunits. {ECO:0000256|HAMAP-Rule:MF_00352}.
CC -!- SIMILARITY: Belongs to the BchN/ChlN family. {ECO:0000256|HAMAP-
CC Rule:MF_00352}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KJH72648.1}.
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DR EMBL; JYON01000004; KJH72648.1; -; Genomic_DNA.
DR RefSeq; WP_045053709.1; NZ_JYON01000004.1.
DR AlphaFoldDB; A0A0D8ZV40; -.
DR STRING; 1618023.UH38_05895; -.
DR PATRIC; fig|1618023.3.peg.2331; -.
DR OrthoDB; 5714774at2; -.
DR UniPathway; UPA00670; -.
DR Proteomes; UP000032452; Unassembled WGS sequence.
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; cd01979; Pchlide_reductase_N; 1.
DR Gene3D; 3.40.50.1980; Nitrogenase molybdenum iron protein domain; 3.
DR HAMAP; MF_00352; ChlN_BchN; 1.
DR InterPro; IPR000510; Nase/OxRdtase_comp1.
DR InterPro; IPR005970; Protochl_reductN.
DR NCBIfam; TIGR01279; DPOR_bchN; 1.
DR PANTHER; PTHR39429; LIGHT-INDEPENDENT PROTOCHLOROPHYLLIDE REDUCTASE SUBUNIT N; 1.
DR PANTHER; PTHR39429:SF3; LIGHT-INDEPENDENT PROTOCHLOROPHYLLIDE REDUCTASE SUBUNIT N; 1.
DR Pfam; PF00148; Oxidored_nitro; 1.
DR PIRSF; PIRSF000162; P_chlorophyll_rd; 1.
DR SUPFAM; SSF53807; Helical backbone' metal receptor; 1.
PE 3: Inferred from homology;
KW 4Fe-4S {ECO:0000256|HAMAP-Rule:MF_00352};
KW ATP-binding {ECO:0000256|HAMAP-Rule:MF_00352};
KW Chlorophyll biosynthesis {ECO:0000256|ARBA:ARBA00023171, ECO:0000256|HAMAP-
KW Rule:MF_00352}; Iron {ECO:0000256|HAMAP-Rule:MF_00352};
KW Iron-sulfur {ECO:0000256|HAMAP-Rule:MF_00352};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00352};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_00352};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_00352};
KW Photosynthesis {ECO:0000256|ARBA:ARBA00022531, ECO:0000256|HAMAP-
KW Rule:MF_00352}; Reference proteome {ECO:0000313|Proteomes:UP000032452}.
FT DOMAIN 22..443
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
FT BINDING 22
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="ligand shared with heterodimeric partner"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00352"
FT BINDING 47
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="ligand shared with heterodimeric partner"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00352"
FT BINDING 107
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="ligand shared with heterodimeric partner"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00352"
SQ SEQUENCE 466 AA; 52393 MW; 63A26138BC94E2F1 CRC64;
MTVAQSEALN FECETGNYHT FCPISCVAWL YQKIEDSFFL VIGTKTCGYF LQNAMGVMIF
AEPRYAMAEL EEGDISAQLN DYEELKRLCL QIKRDRNPSV IVWIGTCTTE IIKMDLEGLA
PKLEAEIGIP IVTARANGLD YAFTQGEDTV LAAMAARCPE KAPVVESEKK ERNAIASLLN
FGKKKEDVAA DESEYVNHTP LVLFGSLPDP VVTQLTLELK KQGIKVSGWL PAKRYTELPV
IEEGYYVAGV NPFLSRTATT LMRRRKCKLI GAPFPIGPDG TRAWIEKICS VLGITPKGLD
EREAQIWASM EDYLQLIRGK SVFFMGDNLL EISLARFLVR CGMTVPEIGI PYMDKRYQAA
ELTLLEHTCQ EMGVPLPRII EKPDNYNQIQ RIKETQPDLV ITGMAHANPL EARGISTKWS
VEFTFAQIHG FTNARDILEL VTRPLRRNTN LKDLGWEKLV KEEAKI
//
