ID A0A218Q716_9CYAN Unreviewed; 480 AA.
AC A0A218Q716;
DT 27-SEP-2017, integrated into UniProtKB/TrEMBL.
DT 27-SEP-2017, sequence version 1.
DT 27-MAR-2024, entry version 28.
DE RecName: Full=FeMo cofactor biosynthesis protein NifB {ECO:0000256|ARBA:ARBA00021702};
DE AltName: Full=Nitrogenase cofactor maturase NifB {ECO:0000256|ARBA:ARBA00032102};
DE AltName: Full=Radical SAM assemblase NifB {ECO:0000256|ARBA:ARBA00030926};
GN ORFNames=NIES3585_37250 {ECO:0000313|EMBL:GAX37680.1};
OS Nodularia sp. NIES-3585.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Nostocales; Aphanizomenonaceae;
OC Nodularia.
OX NCBI_TaxID=1973477 {ECO:0000313|EMBL:GAX37680.1, ECO:0000313|Proteomes:UP000198352};
RN [1] {ECO:0000313|EMBL:GAX37680.1, ECO:0000313|Proteomes:UP000198352}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NIES-3585 {ECO:0000313|EMBL:GAX37680.1,
RC ECO:0000313|Proteomes:UP000198352};
RA Hirose Y., Shimura Y., Fujisawa T., Nakamura Y., Kawachi M.;
RT "Genome sequencing of cyanobaciteial culture collection at National
RT Institute for Environmental Studies (NIES).";
RL Submitted (JUN-2017) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Involved in the biosynthesis of the iron-molybdenum cofactor
CC (FeMo-co or M-cluster) found in the dinitrogenase enzyme of the
CC nitrogenase complex in nitrogen-fixing microorganisms. NifB catalyzes
CC the crucial step of radical SAM-dependent carbide insertion that occurs
CC concomitant with the insertion of a 9th sulfur and the
CC rearrangement/coupling of two [4Fe-4S] clusters into a [8Fe-9S-C]
CC cluster, the precursor to the M-cluster.
CC {ECO:0000256|ARBA:ARBA00003522}.
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|ARBA:ARBA00001966};
CC -!- PATHWAY: Cofactor biosynthesis; Fe-Mo cofactor biosynthesis.
CC {ECO:0000256|ARBA:ARBA00005155}.
CC -!- SIMILARITY: Belongs to the radical SAM superfamily. NifB family.
CC {ECO:0000256|ARBA:ARBA00006804}.
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:GAX37680.1}.
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DR EMBL; BDUB01000001; GAX37680.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A218Q716; -.
DR UniPathway; UPA00782; -.
DR Proteomes; UP000198352; Unassembled WGS sequence.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:InterPro.
DR GO; GO:0003824; F:catalytic activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0009399; P:nitrogen fixation; IEA:UniProtKB-KW.
DR CDD; cd00852; NifB; 1.
DR CDD; cd01335; Radical_SAM; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR Gene3D; 3.30.420.130; Dinitrogenase iron-molybdenum cofactor biosynthesis domain; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR003731; Di-Nase_FeMo-co_biosynth.
DR InterPro; IPR036105; DiNase_FeMo-co_biosyn_sf.
DR InterPro; IPR006638; Elp3/MiaA/NifB-like_rSAM.
DR InterPro; IPR000385; MoaA_NifB_PqqE_Fe-S-bd_CS.
DR InterPro; IPR005980; Nase_CF_NifB.
DR InterPro; IPR034165; NifB_C.
DR InterPro; IPR007197; rSAM.
DR NCBIfam; TIGR01290; nifB; 1.
DR PANTHER; PTHR43787:SF3; FEMO COFACTOR BIOSYNTHESIS PROTEIN NIFB; 1.
DR PANTHER; PTHR43787; FEMO COFACTOR BIOSYNTHESIS PROTEIN NIFB-RELATED; 1.
DR Pfam; PF02579; Nitro_FeMo-Co; 1.
DR Pfam; PF04055; Radical_SAM; 1.
DR SFLD; SFLDF00281; FeMo_cofactor_biosynthesis_pro; 1.
DR SFLD; SFLDS00029; Radical_SAM; 1.
DR SFLD; SFLDG01067; SPASM/twitch_domain_containing; 1.
DR SMART; SM00729; Elp3; 1.
DR SUPFAM; SSF53146; Nitrogenase accessory factor-like; 1.
DR SUPFAM; SSF102114; Radical SAM enzymes; 1.
DR PROSITE; PS01305; MOAA_NIFB_PQQE; 1.
DR PROSITE; PS51918; RADICAL_SAM; 1.
PE 3: Inferred from homology;
KW Iron {ECO:0000256|ARBA:ARBA00023004};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014};
KW Lyase {ECO:0000256|ARBA:ARBA00023239};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Nitrogen fixation {ECO:0000256|ARBA:ARBA00023231};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691}.
FT DOMAIN 55..306
FT /note="Radical SAM core"
FT /evidence="ECO:0000259|PROSITE:PS51918"
FT REGION 1..27
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 480 AA; 53253 MW; 3DABCC29F2E4AF7B CRC64;
MILPSNGLLT SSNQEPASTQ AKSGGCGCDS STTVEMDQKL QERIAQHPCY SEDAHHHYAR
MHVAVAPACN IQCNYCNRKY DCANESRPGV VSELLTPEEA AHKALVIAGK IPQMTVVGIA
GPGDPLANPE KTFRTFELIA DKAPDIKLCL STNGLMLTEY IDRIKQLNID HVTITLNTID
PEIGAQIYSW VHYKRKRYRG VEGAKILLEK QMEGLQALRE ADILCKVNSV MIPGINDQHL
IEVNKMIREN GAFLHNIMPL ISAPEHGTHF GLTGQRGPTP KEVKSVQDNC AGNMKMMRHC
RQCRADAVGL LGEDRSQEFT KDKFLEMTPE YDLEQRTLVH EGIEKFKEEL KIAKDKASAG
KKFANNPKIL VAVATKGGGL VNQHFGHAKE FQIYEVDGNQ VTFVSHRKID QYCQGGFSEE
ATFEHIMAAI ADCKAVLVSK IGNCPQEKLQ AAGIQTVEAY DVIEKVALEF YEQYVKELGN
//
