ID   NIFU_NOSS1              Reviewed;         300 AA.
AC   P20628;
DT   01-FEB-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1991, sequence version 1.
DT   25-MAY-2022, entry version 106.
DE   RecName: Full=Nitrogen fixation protein NifU;
GN   Name=nifU; OrderedLocusNames=all1456;
OS   Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX   NCBI_TaxID=103690;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=2553733; DOI=10.1016/s0021-9258(19)47287-6;
RA   Mulligan M.E., Haselkorn R.;
RT   "Nitrogen fixation (nif) genes of the cyanobacterium Anabaena species
RT   strain PCC 7120. The nifB-fdxN-nifS-nifU operon.";
RL   J. Biol. Chem. 264:19200-19207(1989).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX   PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA   Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA   Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA   Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA   Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT   "Complete genomic sequence of the filamentous nitrogen-fixing
RT   cyanobacterium Anabaena sp. strain PCC 7120.";
RL   DNA Res. 8:205-213(2001).
CC   -!- FUNCTION: May be involved in the formation or repair of [Fe-S] clusters
CC       present in iron-sulfur proteins. {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the NifU family. {ECO:0000305}.
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DR   EMBL; J05111; AAA22007.1; -; Genomic_DNA.
DR   EMBL; BA000019; BAB73412.1; -; Genomic_DNA.
DR   PIR; AD1988; AD1988.
DR   RefSeq; WP_010995627.1; NZ_RSCN01000040.1.
DR   AlphaFoldDB; P20628; -.
DR   SMR; P20628; -.
DR   STRING; 103690.17130802; -.
DR   EnsemblBacteria; BAB73412; BAB73412; BAB73412.
DR   KEGG; ana:all1456; -.
DR   eggNOG; COG0694; Bacteria.
DR   eggNOG; COG0822; Bacteria.
DR   eggNOG; COG2906; Bacteria.
DR   OMA; IRPMLMM; -.
DR   OrthoDB; 1793654at2; -.
DR   Proteomes; UP000002483; Chromosome.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   GO; GO:0051536; F:iron-sulfur cluster binding; IEA:InterPro.
DR   GO; GO:0016226; P:iron-sulfur cluster assembly; IEA:InterPro.
DR   GO; GO:0009399; P:nitrogen fixation; IEA:UniProtKB-KW.
DR   CDD; cd06664; IscU_like; 1.
DR   Gene3D; 1.10.10.1100; -; 1.
DR   Gene3D; 3.30.300.130; -; 1.
DR   InterPro; IPR007419; BFD-like_2Fe2S-bd_dom.
DR   InterPro; IPR041854; BFD-like_2Fe2S-bd_dom_sf.
DR   InterPro; IPR034904; FSCA_dom_sf.
DR   InterPro; IPR016217; N_fixation_NifU.
DR   InterPro; IPR010238; NIF_FeS_clus_asmbl_NifU.
DR   InterPro; IPR001075; NIF_FeS_clus_asmbl_NifU_C.
DR   InterPro; IPR002871; NIF_FeS_clus_asmbl_NifU_N.
DR   PANTHER; PTHR10093; PTHR10093; 1.
DR   Pfam; PF04324; Fer2_BFD; 1.
DR   Pfam; PF01106; NifU; 1.
DR   Pfam; PF01592; NifU_N; 1.
DR   PIRSF; PIRSF000375; NifU; 1.
DR   SUPFAM; SSF117916; SSF117916; 1.
DR   TIGRFAMs; TIGR02000; NifU_proper; 1.
PE   3: Inferred from homology;
KW   Nitrogen fixation; Reference proteome.
FT   CHAIN           1..300
FT                   /note="Nitrogen fixation protein NifU"
FT                   /id="PRO_0000166173"
FT   REGION          201..220
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   300 AA;  32132 MW;  98C5A95369828D8E CRC64;
     MWDYTDKVLE LFYDPKNQGV IEENGEPGVK VATGEVGSIA CGDALRLHIK VEVESDKIVD
     SRFQTFGCTS AIASSSALTE MIKGLTLDEA LKVSNKDIAD YLGGLPEAKM HCSVMGQEAL
     EAAIYNYRGI PLAAHDEDDE GALVCTCFGV SENKVRRIVI ENDLTDAEQV TNYIKAGGGC
     GSCLAKIDDI IKDVKENKAA TNLNNKGGSK PTNIPNSGQK RPLTNVQKIA LIQKVLDEEV
     RPVLIADGGD VELYDVDGDI VKVVLQGACG SCSSSTATLK IAIESRLRDR INPSLVVEAV