8B11

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	EutN/CcmL-like	8036790	3000362	SCOP2B (2022-06-29)
B [auth C]	SCOP2B Superfamily	CcmK-like	8040240	3001326	SCOP2B (2022-06-29)
C [auth D]	SCOP2B Superfamily	CcmK-like	8040240	3001326	SCOP2B (2022-06-29)
D [auth E]	SCOP2B Superfamily	CcmK-like	8040240	3001326	SCOP2B (2022-06-29)

Chains	Accession	Name	Description	Comments	Source
A	PF03319	Ethanolamine utilisation protein EutN/carboxysome (EutN_CcmL)	Ethanolamine utilisation protein EutN/carboxysome	The crystal structure of EutN contains a central five-stranded beta-barrel, with an alpha-helix at the open end of this barrel (PDB:2HD3). The structure also contains three additional beta-strands, which help the formation of a tight hexamer, with a ...	The crystal structure of EutN contains a central five-stranded beta-barrel, with an alpha-helix at the open end of this barrel (PDB:2HD3). The structure also contains three additional beta-strands, which help the formation of a tight hexamer, with a hole in the center. this suggests that EutN forms a pore, with an opening of 26 Angstrom in diameter on one face and 14 Angstrom on the other face [2]. EutN is involved in the cobalamin-dependent degradation of ethanolamine [1].	Domain
B [auth C], C [auth D], D [auth E]	PF00936	BMC domain (BMC)	BMC domain	Bacterial microcompartments are primitive organelles composed entirely of protein subunits. The prototypical bacterial microcompartment is the carboxysome, a protein shell for sequestering carbon fixation reactions. These proteins for hexameric struc ...	Bacterial microcompartments are primitive organelles composed entirely of protein subunits. The prototypical bacterial microcompartment is the carboxysome, a protein shell for sequestering carbon fixation reactions. These proteins for hexameric structure [1].	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Carboxysome shell vertex protein CsoS4A	-	metabolic process carbon fixation	intracellular organelle bacterial microcompartment intracellular anatomical structure organelle carboxysome intracellular non-membrane-bounded organelle cellular anatomical entity non-membrane-bounded organelle
B [auth C], C [auth D], D [auth E]	Major carboxysome shell protein CsoS1A	structural molecule activity structural constituent of carboxysome shell	metabolic process carbon fixation	intracellular organelle bacterial microcompartment intracellular anatomical structure organelle carboxysome intracellular non-membrane-bounded organelle cellular anatomical entity non-membrane-bounded organelle

Chains	Accession	Name	Type
A	IPR004992	Ethanolamine utilization protein EutN/carboxysome shell vertex protein CcmL	Family
A	IPR036677	EutN/Ccml superfamily	Homologous Superfamily
A	IPR014076	Carboxysome shell vertex protein CsoS4A	Family
B [auth C], C [auth D], D [auth E]	IPR020808	Bacterial microcompartments protein, conserved site	Conserved Site
B [auth C], C [auth D], D [auth E]	IPR000249	Bacterial microcompartment domain	Domain
B [auth C], C [auth D], D [auth E]	IPR050575	Bacterial microcompartment shell	Family
B [auth C], C [auth D], D [auth E]	IPR044872	CcmK/CsoS1, bacterial microcompartment domain	Domain
B [auth C], C [auth D], D [auth E]	IPR037233	CcmK-like superfamily	Homologous Superfamily