AC   MF_00854;
DC   Protein; auto
TR   HAMAP; MF_00854; -; 1; level=0
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Names: CcmK
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ID   CCMK
DE   RecName: Full=Carboxysome shell protein CcmK;
DE   AltName: Full=Carbon dioxide-concentrating mechanism protein CcmK;
GN   Name=ccmK;
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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.
CC   -!- SUBUNIT: Homohexamer. Interacts with CcmN and CcmO in the carboxysome.
CC   -!- SUBCELLULAR LOCATION: Carboxysome.
CC   -!- DOMAIN: The tight homohexamer forms a small pore which is positively
CC       charged.
CC   -!- SIMILARITY: Belongs to the bacterial microcompartments protein family.
CC       CcmK subfamily.
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DR   PROSITE; PS01139; BMC_1; 0-1; trigger=no
DR   PROSITE; PS51930; BMC_2; 1; trigger=yes
DR   Pfam; PF00936; BMC; 1; trigger=no
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KW   Carbon dioxide fixation
KW   Carboxysome
KW   Photosynthesis
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GO   GO:0031470; C:carboxysome
GO   GO:0043886; F:structural constituent of carboxysome shell
GO   GO:0015977; P:carbon fixation
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FT   None
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Size: 100-120;
Related: None;
Template: Q03511; Q31RK3; Q31RK2;
Scope:
 Bacteria; Cyanobacteriota
Fusion:
 Nter: None
 Cter: None
Duplicate: None
Plasmid: None
Comments: None
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# Revision 1.4 2023/02/17
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