ID   ANFG_AZOVI     STANDARD;      PRT;   131 AA.
AC   P16268;
DT   01-APR-1990, integrated into UniProtKB/Swiss-Prot.
DT   04-JAN-2005, sequence version 2.
DT   07-FEB-2006, entry version 36.
DE   Nitrogenase iron-iron protein delta chain (EC 1.18.6.1) (Nitrogenase
DE   component I) (Dinitrogenase 3 delta subunit).
GN   Name=anfG;
OS   Azotobacter vinelandii.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Azotobacter.
OX   NCBI_TaxID=354;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   MEDLINE=89123105; PubMed=2644222;
RA   Joerger R.D., Jacobson M.R., Premakumar R., Wolfinger E.D.,
RA   Bishop P.E.;
RT   "Nucleotide sequence and mutational analysis of the structural genes
RT   (anfHDGK) for the second alternative nitrogenase from Azotobacter
RT   vinelandii.";
RL   J. Bacteriol. 171:1075-1086(1989).
RN   [2]
RP   PROTEIN SEQUENCE OF 1-7.
RC   STRAIN=RP306;
RX   MEDLINE=93319493; PubMed=8392330;
RA   Pau R.N., Eldridge M.E., Lowe D.J., Mitchenall L.A., Eady R.R.;
RT   "Molybdenum-independent nitrogenases of Azotobacter vinelandii: a
RT   functional species of alternative nitrogenase-3 isolated from a
RT   molybdenum-tolerant strain contains an iron-molybdenum cofactor.";
RL   Biochem. J. 293:101-107(1993).
CC   -!- FUNCTION: The key enzymatic reactions in nitrogen fixation are
CC       catalyzed by the nitrogenase complex, which has 2 components: the
CC       iron protein (component 2) and a component 1 which is either a
CC       molybdenum-iron protein, a vanadium-iron, or an iron-iron protein.
CC   -!- CATALYTIC ACTIVITY: 8 reduced ferredoxin + 8 H(+) + N(2) + 16 ATP
CC       + 16 H(2)O = 8 oxidized ferredoxin + H(2) + 2 NH(3) + 16 ADP + 16
CC       phosphate.
CC   -!- COFACTOR: Iron-sulfur.
CC   -!- SUBUNIT: Hexamer of two alpha, two beta, and two delta chains.
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DR   EMBL; M23528; AAA82510.1; -; Genomic_DNA.
DR   PIR; C32057; C32057.
DR   InterPro; IPR004349; AnfG_VnfG.
DR   Pfam; PF03139; AnfG_VnfG; 1.
DR   ProDom; PD006096; AnfG_VnfG; 1.
KW   Direct protein sequencing; Iron; Iron-sulfur; Metal-binding;
KW   Nitrogen fixation; Oxidoreductase.
FT   INIT_MET      0      0
FT   CHAIN         1    131       Nitrogenase iron-iron protein delta
FT                                chain.
FT                                /FTId=PRO_0000213563.
SQ   SEQUENCE   131 AA;  15212 MW;  A19DB8AD01531A35 CRC64;
     STASAAAVVK QKVEAPVHPM DARIDELTDY IMKNCLWQFH SRSWDRERQN AEILKKTKEL
     LCGEPVDLST SHDRCYWVDA VCLADDYREH YPWINSMSKE EIGSLMQGLK DRMDYLTITG
     SLNEELSDKH Y
//