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Annotation rule MF_00860
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General rule information [?]

Accession MF_00860
Dates 8-DEC-2020 (Created)
14-DEC-2020 (Last updated, Version 2)
Name RuBisCO_S_euk
Scope
Eukaryota
Templates P69249 (RBS_TOBAC); Q43832 (RBS2_SPIOL): [Recover all]
case <OC:Eukaryota> and not <OG:Plastid>
Triggered by
end case


Propagated annotation [?]


Identifier, protein and gene names [?]

Identifier
RBS
Protein name
RecName: Full=Ribulose bisphosphate carboxylase small subunit, chloroplastic;
Short=RuBisCO small subunit;
Gene name
RBCS

Comments [?]

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.
Subunit Heterohexadecamer of 8 large and 8 small subunits.
Subcellular location Plastid, chloroplast.
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'.
case not <AnyFeature:TransitC>
Miscellaneous This protein is expected to contain an N-terminal transit peptide but none has been predicted.
end case
Similarity Belongs to the RuBisCO small chain family.

Keywords [?]

Calvin cycle
Carbon dioxide fixation
Chloroplast
Photorespiration
Photosynthesis
Plastid

Gene Ontology [?]

GO:0015977; Biological process: carbon fixation.
GO:0016984; Molecular function: ribulose-bisphosphate carboxylase activity.
GO:0019253; Biological process: reductive pentose-phosphate cycle.
GO:0009507; Cellular component: chloroplast.

Cross-references [?]

Pfam PF00101; RuBisCO_small; 0-1;
PF12338; RbcS; 0-1;

Computed features [?]

General TransitC; -; 0-1; trigger=yes;

Additional information [?]

Size range 99-200 amino acids
Related rules None
Fusion None


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