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IPR020888

Description

IPR020888 is a Ribulose bisphosphate carboxylase large subunit, type I.

<p>Ribulose bisphosphate carboxylase (RuBisCO) [[cite:PUB00000034], [cite:PUB00004038]] catalyses the initial step in Calvin's reductive pentose phosphate cycle in plants as well as purple and green bacteria. It catalyzes the primary CO2 fixation step. RuBisCO consists of a large catalytic unit and a small subunit of undetermined function. In plants, the large subunit is coded by the chloroplastic genome while the small subunit is encoded in the nuclear genome. Rubisco is activated by carbamylation of an active site lysine, stabilized by a divalent cation, which then catalyzes the proton abstraction from the substrate ribulose 1,5 bisphosphate (RuBP) and leads to the formation of two molecules of 3-phosphoglycerate [[cite:PUB00015291], [cite:PUB00020282]].</p> <p>Members of the Rubisco family can be divided into 4 subgroups, form I-IV , which differ in their taxonomic distribution and subunit composition [[cite:PUB00080670], [cite:PUB00049187]]. Form I is the most abundant class, present in plants, algae, and bacteria, and forms large complexes composed of 8 large and 8 small subunits.</p>

This description is obtained from EB-eye REST.

Associated GO terms

GO predictions are based solely on the InterPro-to-GO mappings published by EMBL-EBI, which are in turn based on the mapping of predicted domains to the InterPro dataset. The InterPro-to-GO mapping was last updated on , while the GO metadata was last updated on .

GO term Namespace Name Definition Relationships
Molecular function Magnesium ion binding Interacting selectively and non-covalently with magnesium (Mg) ions.
Biological process Carbon fixation A metabolic process in which carbon (usually derived from carbon dioxide) is incorporated into organic compounds (usually carbohydrates).
Molecular function Ribulose-bisphosphate carboxylase activity Catalysis of the reaction: D-ribulose 1,5-bisphosphate + CO2 + H2O = 2 3-phospho-D-glycerate.

Associated Lotus transcripts 1

Transcript Name Description Predicted domains Domain count
Ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit [Lotus japonicus] gi|13518420|ref|NP_084780.1| 19

Co-occuring domains 1

A list of co-occurring predicted domains within the L. japonicus gene space:

Predicted domain Source Observations Saturation (%)
cd08212 CDD 1 100.00