ID   CSOS1_PARMW             Reviewed;         103 AA.
AC   P0A329; P96485;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   15-MAR-2005, sequence version 1.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=Carboxysome shell protein CsoS1 {ECO:0000305};
GN   Name=csoS1; OrderedLocusNames=SYNW1719;
OS   Parasynechococcus marenigrum (strain WH8102).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Parasynechococcus; Parasynechococcus marenigrum.
OX   NCBI_TaxID=84588;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=WH8102;
RX   PubMed=12917641; DOI=10.1038/nature01943;
RA   Palenik B., Brahamsha B., Larimer F.W., Land M.L., Hauser L., Chain P.,
RA   Lamerdin J.E., Regala W., Allen E.E., McCarren J., Paulsen I.T.,
RA   Dufresne A., Partensky F., Webb E.A., Waterbury J.;
RT   "The genome of a motile marine Synechococcus.";
RL   Nature 424:1037-1042(2003).
RN   [2]
RP   IDENTIFICATION BY MASS SPECTROMETRY.
RC   STRAIN=WH8102;
RX   PubMed=31507578; DOI=10.3389/fmicb.2019.01976;
RA   Li Y.Y., Chen X.H., Xue C., Zhang H., Sun G., Xie Z.X., Lin L., Wang D.Z.;
RT   "Proteomic Response to Rising Temperature in the Marine Cyanobacterium
RT   Synechococcus Grown in Different Nitrogen Sources.";
RL   Front. Microbiol. 10:1976-1976(2019).
CC   -!- FUNCTION: One of shell proteins of the carboxysome, a polyhedral
CC       inclusion where RuBisCO (ribulose bisphosphate carboxylase, ccbL-ccbS)
CC       is sequestered. Assembles into hexamers which make sheets that form the
CC       facets of the polyhedral carboxysome. {ECO:0000250|UniProtKB:P45689}.
CC   -!- SUBUNIT: Homohexamer with a small central pore. Forms a CsoS2-CsoS1-
CC       RuBisCO complex. {ECO:0000250|UniProtKB:P45689}.
CC   -!- SUBCELLULAR LOCATION: Carboxysome {ECO:0000250|UniProtKB:P45689}.
CC       Note=This bacterium makes alpha-type carboxysomes. {ECO:0000305}.
CC   -!- DOMAIN: The tight homohexamer forms a small pore which is positively
CC       charged. {ECO:0000250|UniProtKB:P45689}.
CC   -!- SIMILARITY: Belongs to the bacterial microcompartments protein family.
CC       CsoS1 subfamily. {ECO:0000305}.
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DR   EMBL; BX569693; CAE08234.1; -; Genomic_DNA.
DR   RefSeq; WP_006169870.1; NC_005070.1.
DR   AlphaFoldDB; P0A329; -.
DR   SMR; P0A329; -.
DR   STRING; 84588.SYNW1719; -.
DR   EnsemblBacteria; CAE08234; CAE08234; SYNW1719.
DR   GeneID; 54199917; -.
DR   KEGG; syw:SYNW1719; -.
DR   eggNOG; COG4577; Bacteria.
DR   HOGENOM; CLU_064903_5_3_3; -.
DR   OMA; QFREGVN; -.
DR   OrthoDB; 1802372at2; -.
DR   Proteomes; UP000001422; Chromosome.
DR   GO; GO:0031470; C:carboxysome; IEA:UniProtKB-SubCell.
DR   GO; GO:0043886; F:structural constituent of carboxysome; IEA:UniProt.
DR   GO; GO:0015977; P:carbon fixation; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   Gene3D; 3.30.70.1710; -; 1.
DR   InterPro; IPR020808; Bact_microcomp_CS.
DR   InterPro; IPR000249; BMC_dom.
DR   InterPro; IPR037233; CcmK-like_sf.
DR   InterPro; IPR044872; CcmK/CsoS1_BMC.
DR   Pfam; PF00936; BMC; 1.
DR   SMART; SM00877; BMC; 1.
DR   SUPFAM; SSF143414; SSF143414; 1.
DR   PROSITE; PS01139; BMC_1; 1.
DR   PROSITE; PS51930; BMC_2; 1.
PE   1: Evidence at protein level;
KW   Bacterial microcompartment; Carbon dioxide fixation; Carboxysome;
KW   Photosynthesis.
FT   CHAIN           1..103
FT                   /note="Carboxysome shell protein CsoS1"
FT                   /id="PRO_0000201504"
FT   DOMAIN          9..94
FT                   /note="BMC"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01278"
SQ   SEQUENCE   103 AA;  10584 MW;  BFBF578AB15734E8 CRC64;
     MANETMGIAL GMIETRGLVP AIEAADAMTK AAEVRLIGRE FVGGGYVTVL VRGETGAVNA
     AVRAGADACE RVGDGLVAAH IIARPHREVE PALGNGNFLG QKD