ID A0A1I5LD07_9RHOB Unreviewed; 424 AA.
AC A0A1I5LD07;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 27-MAR-2024, entry version 17.
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 ORFNames=SAMN04488047_101593 {ECO:0000313|EMBL:SFO95117.1};
OS Tranquillimonas alkanivorans.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Roseobacteraceae; Tranquillimonas.
OX NCBI_TaxID=441119 {ECO:0000313|EMBL:SFO95117.1, ECO:0000313|Proteomes:UP000199356};
RN [1] {ECO:0000313|EMBL:SFO95117.1, ECO:0000313|Proteomes:UP000199356}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 19547 {ECO:0000313|EMBL:SFO95117.1,
RC ECO:0000313|Proteomes:UP000199356};
RA de Groot N.N.;
RL Submitted (OCT-2016) 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; FOXA01000001; SFO95117.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1I5LD07; -.
DR STRING; 441119.SAMN04488047_101593; -.
DR OrthoDB; 5714774at2; -.
DR UniPathway; UPA00671; -.
DR Proteomes; UP000199356; 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: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:UP000199356}.
FT DOMAIN 25..406
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
FT BINDING 25
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 50
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 111
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 424 AA; 46176 MW; 4AE00C9AA1AC9113 CRC64;
MPPPPATGCR SAPVLKERGQ HEVFCGLTGI VWLHRKMQDA FFLVVGSRTC AHLLQSAAGV
MIFAEPRFGT AILEEQDLAG LADAQEELDR EVARLLARRP DIRQLFLVGS CPSEVIKLDL
AKAAQRLSAR HAPHVRVLNY SGSGIETTFT QGEDACLAAM VPQLPEKSAR ELLLVGALPD
VVEDQALRLL SDLGIGPVRC LPARRAEDMP LVGPDTVFAL TQPFLGDTHA ALERRGARHI
PAPFPFGEEG TTEWLAALAR EFDVPAGRFE QVTAAPRARA RRAVAAAAET LAGRSVFFFP
DSQLEIPLAR FLTRECGMEA IEIGTPYLHK ALMGPDLDLI APGPNLSEGQ DVDRQLDRLR
AARPDLTVCG LGLANPLEAE GLATKWAIEL VFTPVHLYEQ VGDLAQLFAR PLRRRDLLKL
EAAE
//
