ID   CCME_RICBR              Reviewed;         137 AA.
AC   Q1RIN5;
DT   23-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   16-MAY-2006, sequence version 1.
DT   27-MAR-2024, entry version 97.
DE   RecName: Full=Cytochrome c-type biogenesis protein CcmE {ECO:0000255|HAMAP-Rule:MF_01959};
DE   AltName: Full=Cytochrome c maturation protein E {ECO:0000255|HAMAP-Rule:MF_01959};
DE   AltName: Full=Heme chaperone CcmE {ECO:0000255|HAMAP-Rule:MF_01959};
GN   Name=ccmE {ECO:0000255|HAMAP-Rule:MF_01959};
GN   Synonyms=cycJ {ECO:0000255|HAMAP-Rule:MF_01959};
GN   OrderedLocusNames=RBE_0698;
OS   Rickettsia bellii (strain RML369-C).
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; belli group.
OX   NCBI_TaxID=336407;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RML369-C;
RX   PubMed=16703114; DOI=10.1371/journal.pgen.0020076;
RA   Ogata H., La Scola B., Audic S., Renesto P., Blanc G., Robert C.,
RA   Fournier P.-E., Claverie J.-M., Raoult D.;
RT   "Genome sequence of Rickettsia bellii illuminates the role of amoebae in
RT   gene exchanges between intracellular pathogens.";
RL   PLoS Genet. 2:733-744(2006).
CC   -!- FUNCTION: Heme chaperone required for the biogenesis of c-type
CC       cytochromes. Transiently binds heme delivered by CcmC and transfers the
CC       heme to apo-cytochromes in a process facilitated by CcmF and CcmH.
CC       {ECO:0000255|HAMAP-Rule:MF_01959}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01959}; Single-pass type II membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_01959}; Periplasmic side {ECO:0000255|HAMAP-
CC       Rule:MF_01959}.
CC   -!- SIMILARITY: Belongs to the CcmE/CycJ family. {ECO:0000255|HAMAP-
CC       Rule:MF_01959}.
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DR   EMBL; CP000087; ABE04779.1; -; Genomic_DNA.
DR   RefSeq; WP_011477366.1; NC_007940.1.
DR   AlphaFoldDB; Q1RIN5; -.
DR   SMR; Q1RIN5; -.
DR   KEGG; rbe:RBE_0698; -.
DR   eggNOG; COG2332; Bacteria.
DR   HOGENOM; CLU_079503_1_1_5; -.
DR   OrthoDB; 9793584at2; -.
DR   Proteomes; UP000001951; Chromosome.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0017004; P:cytochrome complex assembly; IEA:UniProtKB-KW.
DR   Gene3D; 2.40.50.140; Nucleic acid-binding proteins; 1.
DR   HAMAP; MF_01959; CcmE; 1.
DR   InterPro; IPR004329; CcmE.
DR   InterPro; IPR036127; CcmE-like_sf.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   PANTHER; PTHR34128; CYTOCHROME C-TYPE BIOGENESIS PROTEIN CCME HOMOLOG, MITOCHONDRIAL; 1.
DR   PANTHER; PTHR34128:SF2; CYTOCHROME C-TYPE BIOGENESIS PROTEIN CCME HOMOLOG, MITOCHONDRIAL; 1.
DR   Pfam; PF03100; CcmE; 1.
DR   SUPFAM; SSF82093; Heme chaperone CcmE; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Cytochrome c-type biogenesis; Heme;
KW   Iron; Membrane; Metal-binding; Reference proteome; Signal-anchor;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..137
FT                   /note="Cytochrome c-type biogenesis protein CcmE"
FT                   /id="PRO_0000272364"
FT   TOPO_DOM        1..8
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01959"
FT   TRANSMEM        9..29
FT                   /note="Helical; Signal-anchor for type II membrane protein"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01959"
FT   TOPO_DOM        30..137
FT                   /note="Periplasmic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01959"
FT   BINDING         120
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01959"
FT   BINDING         124
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01959"
SQ   SEQUENCE   137 AA;  15124 MW;  5FC0FC3DF53E10AD CRC64;
     MQKGAKNRLI TIIICFCSAV IGVSIILYNL EKSIVFFVPP SKINEVEQGK ELRVGGLVKV
     DSINKIAADK ISFVITDNIK DLEIFYQGVL PALFRENQGI IAIGRLSNGK FIARELLAKH
     DENYRPPNTV IPAKAGI
//