ID H6SIM2_PARPM Unreviewed; 418 AA.
AC H6SIM2;
DT 18-APR-2012, integrated into UniProtKB/TrEMBL.
DT 18-APR-2012, sequence version 1.
DT 27-MAR-2024, entry version 51.
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=bchN {ECO:0000256|HAMAP-Rule:MF_00352,
GN ECO:0000313|EMBL:CCG06649.1};
GN ORFNames=RSPPHO_00023 {ECO:0000313|EMBL:CCG06649.1};
OS Pararhodospirillum photometricum DSM 122.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Rhodospirillaceae; Pararhodospirillum.
OX NCBI_TaxID=1150469 {ECO:0000313|EMBL:CCG06649.1, ECO:0000313|Proteomes:UP000033220};
RN [1] {ECO:0000313|EMBL:CCG06649.1, ECO:0000313|Proteomes:UP000033220}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM122 {ECO:0000313|Proteomes:UP000033220};
RA Duquesne K., Sturgis J.;
RT "Shotgun genome sequence of Phaeospirillum photometricum DSM 122.";
RL Submitted (FEB-2012) 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 (BchN-BchB) 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; bacteriochlorophyll
CC biosynthesis (light-independent). {ECO:0000256|HAMAP-Rule:MF_00352}.
CC -!- SUBUNIT: Protochlorophyllide reductase is composed of three subunits;
CC BchL, BchN and BchB. Forms a heterotetramer of two BchB and two BchN
CC subunits. {ECO:0000256|HAMAP-Rule:MF_00352}.
CC -!- SIMILARITY: Belongs to the BchN/ChlN family. {ECO:0000256|HAMAP-
CC Rule:MF_00352}.
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DR EMBL; HE663493; CCG06649.1; -; Genomic_DNA.
DR RefSeq; WP_014413289.1; NC_017059.1.
DR AlphaFoldDB; H6SIM2; -.
DR STRING; 1150469.RSPPHO_00023; -.
DR KEGG; rpm:RSPPHO_00023; -.
DR PATRIC; fig|1150469.3.peg.52; -.
DR eggNOG; COG2710; Bacteria.
DR HOGENOM; CLU_037170_0_0_5; -.
DR OrthoDB; 5714774at2; -.
DR UniPathway; UPA00671; -.
DR Proteomes; UP000033220; Chromosome.
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:0036070; P:light-independent bacteriochlorophyll biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0019685; P:photosynthesis, dark reaction; IEA:InterPro.
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 Bacteriochlorophyll biosynthesis {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:UP000033220}.
FT DOMAIN 21..403
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
FT BINDING 21
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 46
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 418 AA; 45779 MW; 9A19B8AFC577ADED CRC64;
MTAATPCDAG TRERGQQSVF CGLTGVVWLH RKIQDAFFLI VGSRTCAHLM QSAAGVMIFA
EPRFGTAVLE ERDLAGMNDH QDELDRVVER LLERRPDIRM LFLVGSCPSE VIKIDLDRAA
QRLDGRFGAR TRVLAYTGSG LETTFTQGED TCLAALLPRL PAAPADEGKS LLVVGCLADV
VEDQFARLFK DLGIPVRFLP PRNSQALPAI GPQTVVLAAQ PFVGETVRLL ERRGCTRLMA
PFPFGEEGTT LWLKAAADAF GVDPARFEAV VAPGRERARQ ALARVRETLD GKTLFFFPDS
QLEIPLARFL KRELGMVPVE VGTPYLNRQL VTPDLELLGD PALVSEGQDV DRQWERVVAK
RPDLTVCGLG LANPLEALGL TTKWSIELVF SPVHGYDQAG DLAGLFARPL ARRALLKV
//
