ID F5RI24_METUF Unreviewed; 530 AA.
AC F5RI24;
DT 27-JUL-2011, integrated into UniProtKB/TrEMBL.
DT 27-JUL-2011, sequence version 1.
DT 24-JAN-2024, entry version 53.
DE RecName: Full=Light-independent protochlorophyllide reductase subunit B {ECO:0000256|HAMAP-Rule:MF_00353};
DE Short=DPOR subunit B {ECO:0000256|HAMAP-Rule:MF_00353};
DE Short=LI-POR subunit B {ECO:0000256|HAMAP-Rule:MF_00353};
DE EC=1.3.7.7 {ECO:0000256|HAMAP-Rule:MF_00353};
GN Name=bchB {ECO:0000256|HAMAP-Rule:MF_00353};
GN ORFNames=METUNv1_03974 {ECO:0000313|EMBL:EGK70006.1};
OS Methyloversatilis universalis (strain ATCC BAA-1314 / JCM 13912 / FAM5).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Nitrosomonadales;
OC Sterolibacteriaceae; Methyloversatilis.
OX NCBI_TaxID=1000565 {ECO:0000313|EMBL:EGK70006.1, ECO:0000313|Proteomes:UP000005019};
RN [1] {ECO:0000313|EMBL:EGK70006.1, ECO:0000313|Proteomes:UP000005019}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1314 / JCM 13912 / FAM5
RC {ECO:0000313|Proteomes:UP000005019};
RX PubMed=21725020; DOI=10.1128/JB.05331-11;
RA Kittichotirat W., Good N.M., Hall R., Bringel F., Lajus A., Medigue C.,
RA Smalley N.E., Beck D., Bumgarner R., Vuilleumier S., Kalyuzhnaya M.G.;
RT "Genome sequence of Methyloversatilis universalis FAM5T, a methylotrophic
RT representative of the order Rhodocyclales.";
RL J. Bacteriol. 193:4541-4542(2011).
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_00353}.
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_00353};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00353};
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_00353};
CC -!- PATHWAY: Porphyrin-containing compound metabolism; bacteriochlorophyll
CC biosynthesis (light-independent). {ECO:0000256|HAMAP-Rule:MF_00353}.
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_00353}.
CC -!- SIMILARITY: Belongs to the ChlB/BchB/BchZ family. {ECO:0000256|HAMAP-
CC Rule:MF_00353}.
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:EGK70006.1}.
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DR EMBL; AFHG01000059; EGK70006.1; -; Genomic_DNA.
DR RefSeq; WP_008064790.1; NZ_AFHG01000059.1.
DR AlphaFoldDB; F5RI24; -.
DR STRING; 1000565.METUNv1_03974; -.
DR eggNOG; COG2710; Bacteria.
DR OrthoDB; 5717231at2; -.
DR UniPathway; UPA00671; -.
DR Proteomes; UP000005019; 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; 1.20.89.20; -; 1.
DR Gene3D; 3.40.50.1980; Nitrogenase molybdenum iron protein domain; 3.
DR Gene3D; 1.10.8.550; Proto-chlorophyllide reductase 57 kD subunit B; 1.
DR HAMAP; MF_00353; ChlB_BchB; 1.
DR InterPro; IPR013580; LI-POR_suB-like_C.
DR InterPro; IPR000510; Nase/OxRdtase_comp1.
DR InterPro; IPR042298; P-CP_red_C.
DR InterPro; IPR005969; Protochl_reductB.
DR InterPro; IPR016209; Protochlorophyllide_Rdtase.
DR NCBIfam; TIGR01278; DPOR_BchB; 1.
DR PANTHER; PTHR33712; LIGHT-INDEPENDENT PROTOCHLOROPHYLLIDE REDUCTASE SUBUNIT B; 1.
DR PANTHER; PTHR33712:SF7; LIGHT-INDEPENDENT PROTOCHLOROPHYLLIDE REDUCTASE SUBUNIT B; 1.
DR Pfam; PF00148; Oxidored_nitro; 1.
DR Pfam; PF08369; PCP_red; 1.
DR PIRSF; PIRSF000163; PCP_ChlB; 1.
DR SUPFAM; SSF53807; Helical backbone' metal receptor; 1.
PE 3: Inferred from homology;
KW 4Fe-4S {ECO:0000256|ARBA:ARBA00022485, ECO:0000256|HAMAP-Rule:MF_00353};
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_00353};
KW Bacteriochlorophyll biosynthesis {ECO:0000256|ARBA:ARBA00023181,
KW ECO:0000256|HAMAP-Rule:MF_00353};
KW Chlorophyll biosynthesis {ECO:0000256|ARBA:ARBA00023171, ECO:0000256|HAMAP-
KW Rule:MF_00353};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00353};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW Rule:MF_00353};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00353};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00353};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_00353};
KW Photosynthesis {ECO:0000256|ARBA:ARBA00022531, ECO:0000256|HAMAP-
KW Rule:MF_00353}; Reference proteome {ECO:0000313|Proteomes:UP000005019}.
FT DOMAIN 12..429
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
FT DOMAIN 481..525
FT /note="Light-independent protochlorophyllide reductase
FT subunit B-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF08369"
FT ACT_SITE 297
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00353"
FT BINDING 36
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_00353"
FT BINDING 432..433
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00353"
SQ SEQUENCE 530 AA; 57652 MW; B00AF5C11F03994E CRC64;
MQLTLWTYEG PPHIGAMRIA TSMRDLHYVL HAPQGDTYAD LLFTMIERQD HRPPVTYTTF
QARDLGGSTA ELVKAAVAEA WERHRPAALL VGDSCTAELI QDQSGALAAG MQLPIPVVPL
ELPAYSKKEN WGAAETFYHL VRALLADQVP APGSSRPPRD PARRPCANLL GPTVLGFRCR
DDVIEIRRLL DALGIDVNVV APLGASVDDL RRLPDADFNI DLYPEVSRTL TGWLGRSFGM
PATRTIPMGV GATRDFIAEV AALAGVDPSP LLASETPGAA GRGTSASRQP WYARSVDSTY
LTGKRVFIFA DATHAIAAAR IATEEMGFTV VGLGCYARDF ARDVREAATR YGVEALISDD
YLEVEKAIAA AAPELVLGTQ MERHIAKRLG IACAVISSPI HVQDVPARYS PVYGFEGANV
LFDSWVHPLV MGLEEHLLQM FRDDFEFNDA APASHLPAVA AQTMAVAELG SSDDADDAPA
WTEDGERELK KIPFFVRGKA RRNTESYARS RGLSTITVET LYDAKAHFAR
//
