ID   CCS1_PROMT              Reviewed;         426 AA.
AC   Q46J48;
DT   10-FEB-2009, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2005, sequence version 1.
DT   25-MAY-2022, entry version 79.
DE   RecName: Full=Cytochrome c biogenesis protein CcsB {ECO:0000255|HAMAP-Rule:MF_01392};
GN   Name=ccsB {ECO:0000255|HAMAP-Rule:MF_01392};
GN   Synonyms=ccs1 {ECO:0000255|HAMAP-Rule:MF_01392};
GN   OrderedLocusNames=PMN2A_0990;
OS   Prochlorococcus marinus (strain NATL2A).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=59920;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NATL2A;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
CC   -!- FUNCTION: Required during biogenesis of c-type cytochromes (cytochrome
CC       c6 and cytochrome f) at the step of heme attachment.
CC       {ECO:0000255|HAMAP-Rule:MF_01392}.
CC   -!- SUBUNIT: May interact with CcsA. {ECO:0000255|HAMAP-Rule:MF_01392}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01392}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01392}.
CC   -!- SIMILARITY: Belongs to the Ccs1/CcsB family. {ECO:0000255|HAMAP-
CC       Rule:MF_01392}.
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DR   EMBL; CP000095; AAZ58480.1; -; Genomic_DNA.
DR   RefSeq; WP_011295335.1; NC_007335.2.
DR   AlphaFoldDB; Q46J48; -.
DR   STRING; 59920.PMN2A_0990; -.
DR   EnsemblBacteria; AAZ58480; AAZ58480; PMN2A_0990.
DR   KEGG; pmn:PMN2A_0990; -.
DR   HOGENOM; CLU_034630_0_0_3; -.
DR   OMA; RFWIDYT; -.
DR   OrthoDB; 1518243at2; -.
DR   PhylomeDB; Q46J48; -.
DR   Proteomes; UP000002535; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0017004; P:cytochrome complex assembly; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01392; CytC_Ccs1; 1.
DR   InterPro; IPR023494; Cyt_c_bgen_Ccs1/CcsB/ResB.
DR   InterPro; IPR007816; ResB-like_domain.
DR   PANTHER; PTHR31566; PTHR31566; 1.
DR   Pfam; PF05140; ResB; 2.
PE   3: Inferred from homology;
KW   Cytochrome c-type biogenesis; Membrane; Reference proteome; Thylakoid;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..426
FT                   /note="Cytochrome c biogenesis protein CcsB"
FT                   /id="PRO_5000100572"
FT   TRANSMEM        14..34
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01392"
FT   TRANSMEM        72..92
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01392"
FT   TRANSMEM        162..182
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01392"
SQ   SEQUENCE   426 AA;  47507 MW;  7E803D37D74824EB CRC64;
     MKKISQVLNW LSSLKIAILL LLVIAVSCAA GTLIPQQESN QFYYDNFNKN PFLGIINAKI
     LLLFEFDHVY TSFWFLFLLI WLGLALSVCS FRRQLPILKS ALNWIDYKSP SQIAKLSVAQ
     TIVTNNCAKS LEKIKLNLKK QGWNVKETDG RIAARQGVIG RLGPILIHLG MILLMIGATY
     GSLNGKTIEK FLAPGRSIDL LNNNEEKGLT IELQKFQIER DPQGRAEQYK SIVNVIEPNG
     NNQSKEISVN YPLRYKGLTL YQADWSLAAI TIKIDNSPKL QIPIKPISEL GEQVWGTIIP
     TNKDGKNQIL LTVDSELGPV NIYDNDGTLL TKLIINKEEK VKGALIKIIN IIPSSGLLLK
     HDPGVPFVYL SFAIILIGGS LSIISTKKIW VLHENEKSMI YIGGLSNRNL SGLSKELPNL
     ISFLET