ID   CYC2_RHORT              Reviewed;         135 AA.
AC   Q2RVM4; P00092;
DT   04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 1.
DT   03-AUG-2022, entry version 91.
DE   RecName: Full=Cytochrome c2;
DE   Flags: Precursor;
GN   Name=cycA; OrderedLocusNames=Rru_A1020;
OS   Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 /
OS   NCIMB 8255 / S1).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Rhodospirillaceae; Rhodospirillum.
OX   NCBI_TaxID=269796;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=2154194; DOI=10.1042/bj2650599;
RA   Self S.J., Hunter C.N., Leatherbarrow R.J.;
RT   "Molecular cloning, sequencing and expression of cytochrome c2 from
RT   Rhodospirillum rubrum.";
RL   Biochem. J. 265:599-604(1990).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIMB 8255 / S1;
RX   PubMed=21886856; DOI=10.4056/sigs.1804360;
RA   Munk A.C., Copeland A., Lucas S., Lapidus A., Del Rio T.G., Barry K.,
RA   Detter J.C., Hammon N., Israni S., Pitluck S., Brettin T., Bruce D.,
RA   Han C., Tapia R., Gilna P., Schmutz J., Larimer F., Land M., Kyrpides N.C.,
RA   Mavromatis K., Richardson P., Rohde M., Goeker M., Klenk H.P., Zhang Y.,
RA   Roberts G.P., Reslewic S., Schwartz D.C.;
RT   "Complete genome sequence of Rhodospirillum rubrum type strain (S1).";
RL   Stand. Genomic Sci. 4:293-302(2011).
CC   -!- FUNCTION: Cytochrome c2 is found mainly in purple, non-sulfur,
CC       photosynthetic bacteria where it functions as the electron donor to the
CC       oxidized bacteriochlorophyll in the photophosphorylation pathway.
CC       However, it may also have a role in the respiratory chain and is found
CC       in some non-photosynthetic bacteria.
CC   -!- PTM: Binds 1 heme c group covalently per subunit. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the cytochrome c family. {ECO:0000305}.
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DR   EMBL; X17605; CAA35607.1; -; Genomic_DNA.
DR   EMBL; CP000230; ABC21821.1; -; Genomic_DNA.
DR   PIR; S08213; CCQF2R.
DR   RefSeq; WP_011388775.1; NC_007643.1.
DR   RefSeq; YP_426108.1; NC_007643.1.
DR   AlphaFoldDB; Q2RVM4; -.
DR   SMR; Q2RVM4; -.
DR   STRING; 269796.Rru_A1020; -.
DR   EnsemblBacteria; ABC21821; ABC21821; Rru_A1020.
DR   KEGG; rru:Rru_A1020; -.
DR   PATRIC; fig|269796.9.peg.1075; -.
DR   eggNOG; COG3474; Bacteria.
DR   HOGENOM; CLU_060944_2_1_5; -.
DR   OMA; YSDAMKN; -.
DR   OrthoDB; 1853490at2; -.
DR   PhylomeDB; Q2RVM4; -.
DR   Proteomes; UP000001929; Chromosome.
DR   GO; GO:0009055; F:electron transfer activity; IDA:CACAO.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0022900; P:electron transport chain; IDA:CACAO.
DR   GO; GO:0009767; P:photosynthetic electron transport chain; IDA:CACAO.
DR   Gene3D; 1.10.760.10; -; 1.
DR   InterPro; IPR009056; Cyt_c-like_dom.
DR   InterPro; IPR036909; Cyt_c-like_dom_sf.
DR   InterPro; IPR002327; Cyt_c_1A/1B.
DR   PANTHER; PTHR11961; PTHR11961; 1.
DR   Pfam; PF00034; Cytochrom_C; 1.
DR   PRINTS; PR00604; CYTCHRMECIAB.
DR   SUPFAM; SSF46626; SSF46626; 1.
DR   PROSITE; PS51007; CYTC; 1.
PE   3: Inferred from homology;
KW   Electron transport; Heme; Iron; Metal-binding; Photosynthesis;
KW   Reference proteome; Signal; Transport.
FT   SIGNAL          1..23
FT                   /evidence="ECO:0000250"
FT   CHAIN           24..135
FT                   /note="Cytochrome c2"
FT                   /id="PRO_0000231666"
FT   BINDING         37
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT   BINDING         40
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT   BINDING         41
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
FT   BINDING         114
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00433"
SQ   SEQUENCE   135 AA;  14395 MW;  61B1B2C2757DE6BA CRC64;
     MKKGFLAAGV FAAVAFASGA ALAEGDAAAG EKVSKKCLAC HTFDQGGANK VGPNLFGVFE
     NTAAHKDDYA YSESYTEMKA KGLTWTEANL AAYVKDPKAF VLEKSGDPKA KSKMTFKLTK
     DDEIENVIAY LKTLK