ID   RUBR_MEGEL              Reviewed;          52 AA.
AC   P00271;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   03-AUG-2022, entry version 82.
DE   RecName: Full=Rubredoxin;
DE            Short=Rd;
OS   Megasphaera elsdenii.
OC   Bacteria; Firmicutes; Negativicutes; Veillonellales; Veillonellaceae;
OC   Megasphaera.
OX   NCBI_TaxID=907;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=5640967; DOI=10.1016/s0021-9258(18)93617-3;
RA   Bachmayer H., Yasunobu K.T., Peel J.L., Mayhew S.G.;
RT   "Non-heme iron proteins. V. The amino acid sequence of rubredoxin from
RT   Peptostreptococcus elsdenii.";
RL   J. Biol. Chem. 243:1022-1030(1968).
CC   -!- FUNCTION: Rubredoxin is a small nonheme, iron protein lacking acid-
CC       labile sulfide. Its single Fe, chelated to 4 Cys, functions as an
CC       electron acceptor and may also stabilize the conformation of the
CC       molecule.
CC   -!- COFACTOR:
CC       Name=Fe(3+); Xref=ChEBI:CHEBI:29034;
CC       Note=Binds 1 Fe(3+) ion per subunit.;
CC   -!- SIMILARITY: Belongs to the rubredoxin family. {ECO:0000305}.
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DR   PIR; A00277; RUME.
DR   AlphaFoldDB; P00271; -.
DR   SMR; P00271; -.
DR   GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   CDD; cd00730; rubredoxin; 1.
DR   InterPro; IPR024922; Rubredoxin.
DR   InterPro; IPR024934; Rubredoxin-like_dom.
DR   InterPro; IPR024935; Rubredoxin_dom.
DR   InterPro; IPR018527; Rubredoxin_Fe_BS.
DR   Pfam; PF00301; Rubredoxin; 1.
DR   PIRSF; PIRSF000071; Rubredoxin; 1.
DR   PRINTS; PR00163; RUBREDOXIN.
DR   PROSITE; PS00202; RUBREDOXIN; 1.
DR   PROSITE; PS50903; RUBREDOXIN_LIKE; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Electron transport; Iron; Metal-binding;
KW   Transport.
FT   CHAIN           1..52
FT                   /note="Rubredoxin"
FT                   /id="PRO_0000135041"
FT   DOMAIN          1..51
FT                   /note="Rubredoxin-like"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00241"
FT   BINDING         6
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT   BINDING         9
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT   BINDING         38
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT   BINDING         41
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
SQ   SEQUENCE   52 AA;  5616 MW;  A13AB077992FDFD4 CRC64;
     MDKYECSICG YIYDEAEGDD GNVAAGTKFA DLPADWVCPT CGADKDAFVK MD