ID   NIFU_KLEPN              Reviewed;         274 AA.
AC   P05343;
DT   01-NOV-1988, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1989, sequence version 2.
DT   25-MAY-2022, entry version 71.
DE   RecName: Full=Nitrogen fixation protein NifU;
GN   Name=nifU;
OS   Klebsiella pneumoniae.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX   NCBI_TaxID=573;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=3062178; DOI=10.1016/0022-2836(88)90205-7;
RA   Arnold W., Rump A., Klipp W., Priefer U.B., Puehler A.;
RT   "Nucleotide sequence of a 24,206-base-pair DNA fragment carrying the entire
RT   nitrogen fixation gene cluster of Klebsiella pneumoniae.";
RL   J. Mol. Biol. 203:715-738(1988).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=3054814; DOI=10.1093/nar/16.20.9860;
RA   Beynon J., Cannon M., Banan-Wollaston V., Ally A., Sutterquist R.,
RA   Cannon F.;
RT   "The nucleotide sequence of the nifT, nifY, nifX and nifW genes of K.
RT   pneumoniae.";
RL   Nucleic Acids Res. 16:9860-9860(1988).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=3040672; DOI=10.1128/jb.169.9.4024-4029.1987;
RA   Beynon J., Ally A., Cannon M., Cannon F., Jacobson M.R., Cash V.L.,
RA   Dean D.R.;
RT   "Comparative organization of nitrogen fixation-specific genes from
RT   Azotobacter vinelandii and Klebsiella pneumoniae: DNA sequence of the
RT   nifUSV genes.";
RL   J. Bacteriol. 169:4024-4029(1987).
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; X13303; CAA31674.1; -; Genomic_DNA.
DR   EMBL; X12600; CAA31117.1; -; Genomic_DNA.
DR   EMBL; M17350; AAA25155.1; -; Genomic_DNA.
DR   PIR; S02506; S02506.
DR   AlphaFoldDB; P05343; -.
DR   SMR; P05343; -.
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.
FT   CHAIN           1..274
FT                   /note="Nitrogen fixation protein NifU"
FT                   /id="PRO_0000166170"
FT   CONFLICT        5
FT                   /note="S -> C (in Ref. 3; AAA25155)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   274 AA;  29495 MW;  381F65FB0502546B CRC64;
     MWNYSEKVKD HFFNPRNARV VDNANAVGDV GSLSCGDALR LMLRVDPQSE IIEEAGFQTF
     GCGSAIASSS ALTELIIGHT LAEAGQITNQ QIADYLDGLP PEKMHCSVMG QEALRAAIAN
     FRGESLEEEH DEGKLICKCF GVDEGHIRRA VQNNGLTTLA EVINYTKAGG GCTSCHEKIE
     LALAEILAQQ PQTTPAVASG KDPHWQSVVD TIAELRPHIQ ADGGDMALLS VTNHQVTVSL
     SGSCSGCMMT DMTLAWLQQK LMERTGCYME VVAA