ID B8HUA5_CYAP4 Unreviewed; 107 AA.
AC B8HUA5;
DT 03-MAR-2009, integrated into UniProtKB/TrEMBL.
DT 03-MAR-2009, sequence version 1.
DT 27-MAR-2024, entry version 58.
DE RecName: Full=Carboxysome shell protein CcmK {ECO:0000256|HAMAP-Rule:MF_00854};
DE AltName: Full=Carbon dioxide-concentrating mechanism protein CcmK {ECO:0000256|HAMAP-Rule:MF_00854};
GN Name=ccmK {ECO:0000256|HAMAP-Rule:MF_00854};
GN OrderedLocusNames=Cyan7425_2087 {ECO:0000313|EMBL:ACL44450.1};
OS Cyanothece sp. (strain PCC 7425 / ATCC 29141).
OC Bacteria; Cyanobacteriota; Cyanophyceae; Gomontiellales; Cyanothecaceae;
OC Cyanothece.
OX NCBI_TaxID=395961 {ECO:0000313|EMBL:ACL44450.1};
RN [1] {ECO:0000313|EMBL:ACL44450.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=PCC 7425 {ECO:0000313|EMBL:ACL44450.1};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Sims D., Meineke L., Brettin T.,
RA Detter J.C., Han C., Larimer F., Land M., Hauser L., Kyrpides N.,
RA Ovchinnikova G., Liberton M., Stoeckel J., Banerjee A., Singh A., Page L.,
RA Sato H., Zhao L., Sherman L., Pakrasi H., Richardson P.;
RT "Complete sequence of chromosome Cyanothece sp. PCC 7425.";
RL Submitted (JAN-2009) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: One of the shell proteins of the carboxysome, a polyhedral
CC inclusion where RuBisCO (ribulose bisphosphate carboxylase, rbcL-rbcS)
CC is sequestered. Assembles into hexamers which make sheets that form the
CC facets of the polyhedral carboxysome. The hexamer central pore probably
CC regulates metabolite flux. {ECO:0000256|HAMAP-Rule:MF_00854}.
CC -!- SUBUNIT: Homohexamer. Interacts with CcmN and CcmO in the carboxysome.
CC {ECO:0000256|HAMAP-Rule:MF_00854}.
CC -!- SUBCELLULAR LOCATION: Carboxysome {ECO:0000256|ARBA:ARBA00023587,
CC ECO:0000256|HAMAP-Rule:MF_00854}.
CC -!- DOMAIN: The tight homohexamer forms a small pore which is positively
CC charged. {ECO:0000256|HAMAP-Rule:MF_00854}.
CC -!- SIMILARITY: Belongs to the bacterial microcompartments protein family.
CC CcmK subfamily. {ECO:0000256|HAMAP-Rule:MF_00854}.
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DR EMBL; CP001344; ACL44450.1; -; Genomic_DNA.
DR AlphaFoldDB; B8HUA5; -.
DR STRING; 395961.Cyan7425_2087; -.
DR KEGG; cyn:Cyan7425_2087; -.
DR eggNOG; COG4577; Bacteria.
DR HOGENOM; CLU_064903_5_0_3; -.
DR OrthoDB; 7057533at2; -.
DR GO; GO:0031470; C:carboxysome; IEA:UniProtKB-SubCell.
DR GO; GO:0043886; F:structural constituent of carboxysome shell; IEA:UniProtKB-UniRule.
DR GO; GO:0015977; P:carbon fixation; IEA:UniProtKB-UniRule.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR CDD; cd07057; BMC_CcmK; 1.
DR Gene3D; 3.30.70.1710; -; 1.
DR HAMAP; MF_00854; CcmK; 1.
DR InterPro; IPR000249; BMC_dom.
DR InterPro; IPR046380; CcmK.
DR InterPro; IPR037233; CcmK-like_sf.
DR InterPro; IPR044872; CcmK/CsoS1_BMC.
DR PANTHER; PTHR33941:SF11; BACTERIAL MICROCOMPARTMENT SHELL PROTEIN PDUJ; 1.
DR PANTHER; PTHR33941; PROPANEDIOL UTILIZATION PROTEIN PDUA; 1.
DR Pfam; PF00936; BMC; 1.
DR SMART; SM00877; BMC; 1.
DR SUPFAM; SSF143414; CcmK-like; 1.
DR PROSITE; PS51930; BMC_2; 1.
PE 3: Inferred from homology;
KW Bacterial microcompartment {ECO:0000256|ARBA:ARBA00024446};
KW Carbon dioxide fixation {ECO:0000256|ARBA:ARBA00023300, ECO:0000256|HAMAP-
KW Rule:MF_00854}; Carboxysome {ECO:0000256|HAMAP-Rule:MF_00854};
KW Photosynthesis {ECO:0000256|HAMAP-Rule:MF_00854}.
FT DOMAIN 4..95
FT /note="BMC"
FT /evidence="ECO:0000259|PROSITE:PS51930"
SQ SEQUENCE 107 AA; 11588 MW; 0D6DF3A5D6A0193D CRC64;
MSRAVGMVEV RGLPPALAVA DVMVKAARVT LVYMEKVSGA YVTIIVRGDV SEVQLAVEAG
VAAAKKMYPF KEGDKLFLSS HVIPRPHENL MAVLPIDYNR STADFIV
//
