HAMAP rule MF_00854

General rule information [?]

Accession	MF_00854
Dates	18-AUG-2020 (Created) 17-FEB-2023 (Last updated, Version 4)

Name

CcmK

Scope

Bacteria; Cyanobacteriota

Templates

Q03511 (CCMK2_SYNE7); Q31RK3 (CCMK3_SYNE7); Q31RK2 (CCMK4_SYNE7): [Recover all]

Triggered by

HAMAP; MF_00854 (Get profile general information and statistics)

Propagated annotation [?]

Identifier, protein and gene names [?]

Identifier

CCMK

Protein name

RecName:		Full=Carboxysome shell protein CcmK;
AltName:		Full=Carbon dioxide-concentrating mechanism protein CcmK;

Gene name

ccmK

Comments [?]

Function	One of the shell proteins of the carboxysome, a polyhedral inclusion where RuBisCO (ribulose bisphosphate carboxylase, rbcL-rbcS) is sequestered. Assembles into hexamers which make sheets that form the facets of the polyhedral carboxysome. The hexamer central pore probably regulates metabolite flux.
Subunit	Homohexamer. Interacts with CcmN and CcmO in the carboxysome.
Subcellular location	Carboxysome.
Domain	The tight homohexamer forms a small pore which is positively charged.
Similarity	Belongs to the bacterial microcompartments protein family. CcmK subfamily.

Keywords [?]

Carbon dioxide fixation
Carboxysome
Photosynthesis

Gene Ontology [?]

GO:0031470; Cellular component: carboxysome.
GO:0043886; Molecular function: structural constituent of carboxysome shell.
GO:0015977; Biological process: carbon fixation.

Cross-references [?]

PROSITE	PS01139; BMC_1; 0-1;
	PS51930; BMC_2; 1; trigger=PRU01278;
Pfam	PF00936; BMC; 1;

Additional information [?]

Size range	100-120 amino acids
Related rules	None
Fusion	None

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