Q32603 · Q32603_9FLOR

  • Protein
    Ribulose bisphosphate carboxylase large chain
  • Gene
    rbcL
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    3/5

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'.

Caution

Lacks conserved residue(s) required for the propagation of feature annotation.

Catalytic activity

Cofactor

Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Note: Binds 1 Mg2+ ion per subunit.

Features

Showing features for binding site, active site, site.

Type
IDPosition(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
Cellular Componentmembrane
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

  • Taxonomic identifier
  • Organism
  • Strain
    • Bodega Head
  • Taxonomic lineage
    Eukaryota > Rhodophyta > Florideophyceae > Rhodymeniophycidae > Gigartinales > Phyllophoraceae > Mastocarpus

Accessions

  • Primary accession
    Q32603

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane264-286Helical

Keywords

PTM/Processing

Features

Showing features for modified residue.

TypeIDPosition(s)Description
Modified residue205N6-carboxylysine

Interaction

Subunit

Heterohexadecamer of 8 large chains and 8 small chains.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain28-148Ribulose bisphosphate carboxylase large subunit ferrodoxin-like N-terminal
Domain158-465Ribulose bisphosphate carboxylase large subunit C-terminal

Sequence similarities

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

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    488
  • Mass (Da)
    54,135
  • Last updated
    1996-11-01 v1
  • Checksum
    371771C6B514F733
MSNSVEERTRIKNERYESGVIPYAKMGYWDPDYVVKETDVLALFRVSPQPGVDPVEASAAIAGESSTATWTVVWTDLLTACDLYRAKAYKVDAVPNTSDQYFAYIAYDIDLFEEGSIANLTASIIGNVFGFKAVKALRLEDMRLPVAYLKTFQGPATGIISERERMDKFGRPFLGATVKPKLGLSGKNYGRVVYEGLKGGLDFLKDDENINSQPFMRWKERYLYSMEAVNRSIAATGEIKGHYLNITAATMEEMYERAEFAKQLGSIIIMIDLVIGYTAIQSMAIWSRKNDMILHLHRAGNSTYSXXKIHGMNFRVICKWMRMAGVDHIHAGTVVGKLEGDPLMIKGFYNTLLLPYLEVNLPQGIFFEQDWASLRKVTPVASGGIHCGQMHQLLDYLGIDVVLQFGGGTIGHPDGIQAGATANRVALESMIIARNEGRDYVAEGPQILQDAAKTCGPLQTALDLWKDITFNYTSTDTADXVETPTANV

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
U04028
EMBL· GenBank· DDBJ
AAA16262.1
EMBL· GenBank· DDBJ
Unassigned DNA

Similar Proteins

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