ID   CCS1_PROM1              Reviewed;         426 AA.
AC   A2C4K5;
DT   10-FEB-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 71.
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=NATL1_18591;
OS   Prochlorococcus marinus (strain NATL1A).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=167555;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NATL1A;
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; CP000553; ABM76415.1; -; Genomic_DNA.
DR   RefSeq; WP_011824397.1; NC_008819.1.
DR   AlphaFoldDB; A2C4K5; -.
DR   STRING; 167555.NATL1_18591; -.
DR   EnsemblBacteria; ABM76415; ABM76415; NATL1_18591.
DR   KEGG; pme:NATL1_18591; -.
DR   eggNOG; COG1333; Bacteria.
DR   HOGENOM; CLU_034630_0_0_3; -.
DR   OMA; RFWIDYT; -.
DR   Proteomes; UP000002592; 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; Thylakoid; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..426
FT                   /note="Cytochrome c biogenesis protein CcsB"
FT                   /id="PRO_0000363623"
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;  47506 MW;  36B5FAAC873860CF CRC64;
     MKKISQVLNW LSSLKIAILL LLLIAISCAA GTLIPQQESN QFYYDNFNKN PFLGIINANI
     LLLFEFDHVY TSFWFLFLLI WLGLALSVCS FRRQLPILKS ALNWIDYKSP RQIAKLSVAQ
     TIVTNNCSES LEKIKLNLKK QGWNVKETDG RIAARQGVIG RLGPILIHLG MILLMIGATY
     GSLNGKTIEK FLAPGRSIDL LNNNEEKGLT IELQKFQIER DPQGRAEQYK SIVNVIEPNG
     SNESKEISVN YPLRYKGLTL YQADWSLAAI TIQIDNSPKL QIPIEPISEL GEQVWGTVIP
     TNKDGKNQIL LTVDSELGPV NIYDNDGTLL TKLSINKEEK VKGALINIIN IIPSSGLLLK
     HDPGVPLVYL SFAIILIGGS LSIISTKKIW VLHENEKSMI YIGGLSNRNL SGLSKELPNL
     ISFLEN