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Annotation rule MF_00860 |
General rule information
[?]
Accession |
MF_00860 |
Dates |
8-DEC-2020 (Created) 14-DEC-2020 (Last updated, Version 2) |
case <OC:Eukaryota> and not <OG:Plastid>
end case
Propagated annotation
[?]
Identifier, protein and gene names
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Protein name |
RecName:
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Full=Ribulose bisphosphate carboxylase small subunit, chloroplastic;
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Short=RuBisCO small subunit;
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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. |
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.
General |
TransitC; -; 0-1; trigger=yes; |
Additional information
[?]
Size range |
99-200 amino acids |
Related rules |
None |
Fusion |
None |