HAMAP rule MF_00859
General rule information
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Accession | MF_00859 |
Dates | 8-DEC-2020 (Created)
17-FEB-2023 (Last updated, Version 5) |
Name | RuBisCO_S_bact |
Scope(s) |
Bacteria Cyanobacteriota Pseudomonadota Actinomycetota Verrucomicrobiota Plastid |
Template(s) | Q31NB2 (RBS_SYNE7); P04716 (RBS_SYNP6); P45686 (RBS_HALNC); P27998 (RBS_CERSP); P23756 (RBS_GALSU); [ Recover all ] |
Triggered by |
case c? <OC:Bacteria> or <OG:Plastid>
HAMAP; MF_00859 (Get profile general information and statistics) end case
|
Propagated annotation
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Identifier, protein and gene names
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Identifier | RBS |
Protein name | RecName: Full=Ribulose bisphosphate carboxylase small subunit; Short=RuBisCO small subunit; |
case <OC:Cyanobacteriota> | |
Gene name | Name=cbbS; Synonyms=rbcS; |
else case <OC:Eukaryota> | |
Gene name | Name=rbcS; |
else | |
Gene name | Name=cbbS; |
end case |
Comments
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case <OG:Chloroplast> or <OC:Cyanobacteriota> | |
FUNCTION | RuBisCO catalyzes two reactions: the carboxylation of D- ribulose 1,5-bisphosphate, the primary event in carbon dioxide fixation, as well as the oxidative fragmentation of the pentose substrate in the photorespiration process. Both reactions occur simultaneously and in competition at the same active site. Although the small subunit is not catalytic it is essential for maximal activity. |
else | |
FUNCTION | RuBisCO catalyzes two reactions: the carboxylation of D- ribulose 1,5-bisphosphate, the primary event in carbon dioxide fixation, as well as the oxidative fragmentation of the pentose substrate. Both reactions occur simultaneously and in competition at the same active site. Although the small subunit is not catalytic it is essential for maximal activity. |
end case | |
SUBUNIT | Heterohexadecamer of 8 large and 8 small subunits. |
case <OC:Cyanobacteriota> | |
SUBCELLULAR LOCATION | Carboxysome. |
end case | |
case <OC:Eukaryota> | |
SUBCELLULAR LOCATION | Plastid, chloroplast. |
end case | |
MISCELLANEOUS | The basic functional RuBisCO is composed of a large chain homodimer in a 'head-to-tail' conformation. In form I RuBisCO this homodimer is arranged in a barrel-like tetramer with the small subunits forming a tetrameric 'cap' on each end of the 'barrel'. |
SIMILARITY | Belongs to the RuBisCO small chain family. |
Keywords
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Calvin cycle | |
Carbon dioxide fixation | |
case <OC:Cyanobacteriota> | |
Carboxysome | |
end case | |
case <OC:Eukaryota> | |
Chloroplast | |
end case | |
case <OG:Chloroplast> or <OC:Cyanobacteriota> or <Property:PHOTOSYN> | |
Photorespiration | |
Photosynthesis | |
end case |
Gene Ontology
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GO:0015977; Biological process:carbon fixation | |
GO:0016984; Molecular function:ribulose-bisphosphate carboxylase activity | |
GO:0019253; Biological process:reductive pentose-phosphate cycle | |
case <OCellular component:Cyanobacteriota> | |
GO:0031470; Cellular component:carboxysome | |
end case | |
case <OCellular component:Cyanobacteriota> or <OG:Chloroplast> or <Property:PHOTOSYN> | |
GO:0009507; Cellular component:chloroplast | |
end case |
Cross-references
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Pfam | PF00101; RuBisCO_small; 1; |
Features
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Additional information
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Size range | 85-200 amino acids |
Related rules |
None |
Fusion | Nter: None Cter: None |