A0T0N6 · RBL_THAPS

Function

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.

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'.

Catalytic activity

Cofactor

Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Note: Binds 1 Mg2+ ion per subunit.

Features

Showing features for binding site, active site, site.

TypeIDPosition(s)Description
Binding site127substrate; in homodimeric partner
Binding site177substrate
Active site179Proton acceptor
Binding site181substrate
Binding site205Mg2+ (UniProtKB | ChEBI); via carbamate group
Binding site207Mg2+ (UniProtKB | ChEBI)
Binding site208Mg2+ (UniProtKB | ChEBI)
Active site297Proton acceptor
Binding site298substrate
Binding site330substrate
Site337Transition state stabilizer
Binding site382substrate

GO annotations

AspectTerm
Cellular Componentchloroplast
Molecular Functionmagnesium ion binding
Molecular Functionmonooxygenase activity
Molecular Functionribulose-bisphosphate carboxylase activity
Biological Processreductive pentose-phosphate cycle

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Ribulose bisphosphate carboxylase large chain
  • EC number
  • Short names
    RuBisCO large subunit

Gene names

    • Name
      rbcL

Encoded on

  • Chloroplast

Organism names

Accessions

  • Primary accession
    A0T0N6

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for chain, modified residue.

TypeIDPosition(s)Description
ChainPRO_00002753741-490Ribulose bisphosphate carboxylase large chain
Modified residue205N6-carboxylysine

Proteomic databases

Interaction

Subunit

Heterohexadecamer of 8 large chains and 8 small chains.

Protein-protein interaction databases

Structure

Family & Domains

Sequence similarities

Belongs to the RuBisCO large chain family. Type I subfamily.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    490
  • Mass (Da)
    54,324
  • Last updated
    2007-01-09 v1
  • Checksum
    A8FBC8583F358EBE
MSQSVSERTRIKSDRYESGVIPYAKMGYWDAAYTVKDTDVLALFRITPQPGVDPVEAAAAVAGESSTATWTVVWTDLLTACERYRAKAYRVDPVPSATDQYFAFIAYECDLFEEASLSNLTASIIGNVFGFKAISALRLEDMRIPHSYLKTFQGPATGIVVERERLNKYGTPLLGATVKPKLGLSGKNYGRVVYEGLKGGLDFLKDDENINSQPFMRWRERFLNCLEGINRASAATGEVKGSYLNITAATMEEVYKRAEYAKMIGSVIVMIDLVMGYTAIQSIAYWARENDMLLHLHRAGNSTYARQKNHGINFRVICKWMRMSGVDHIHAGTVVGKLEGDPLMIKGFYDILRLTELEVNLPFGIFFEMDWASLRRCMPVASGGIHCGQMHQLIHYLGDDVVLQFGGGTIGHPDGIQAGATANRVALEAMVLARNEGLDYFNQQVGPQILRDAAKTCGPLQTALDLWKDISFNYTSTDTADFAETATANR

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
EF067921
EMBL· GenBank· DDBJ
ABK20721.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

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