P16032 · RBS1_MESCR

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. 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.

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'.

GO annotations

all annotationsall molecular functionnucleotide bindingmolecular_functionnucleic acid bindingdna bindingchromatin bindingdna-binding transcription factor activityrna bindingcytoskeletal motor activitycatalytic activitynuclease activitysignaling receptor bindingstructural molecule activitytransporter activitybindingprotein bindingtranslation factor activity, rna bindinglipid bindingkinase activitytransferase activityhydrolase activityoxygen bindingenzyme regulator activitycarbohydrate bindingsignaling receptor activitytranslation regulator activitytranscription regulator activityother molecular functionall biological processcarbohydrate metabolic processgeneration of precursor metabolites and energynucleobase-containing compound metabolic processdna metabolic processtranslationlipid metabolic processtransportresponse to stresscell cyclecell communicationsignal transductioncell-cell signalingmulticellular organism developmentcircadian rhythmbiological_processmetabolic processcatabolic processbiosynthetic processresponse to light stimulusresponse to external stimulustropismresponse to biotic stimulusresponse to abiotic stimulusresponse to endogenous stimulusembryo developmentpost-embryonic developmentfruit ripeningabscissionpollinationflower developmentcellular processprogrammed cell deathphotosynthesiscellular component organizationcell growthprotein metabolic processcellular homeostasissecondary metabolic processreproductive processcell differentiationprotein modification processgrowthepigenetic regulation of gene expressionresponse to chemicalanatomical structure developmentregulation of molecular functionother biological processall cellular componentcellular_componentextracellular regioncell wallintracellular anatomical structurenucleusnuclear envelopenucleoplasmnucleoluscytoplasmmitochondrionlysosomeendosomevacuoleperoxisomeendoplasmic reticulumgolgi apparatuscytosolribosomecytoskeletonplasma membranechloroplastplastidthylakoidmembraneexternal encapsulating structureother cellular component
Cell color indicative of number of GO terms
AspectTerm
Cellular Componentchloroplast
Molecular Functionribulose-bisphosphate carboxylase activity
Biological Processphotorespiration
Biological Processreductive pentose-phosphate cycle

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Ribulose bisphosphate carboxylase small subunit, chloroplastic 1
  • Short names
    RuBisCO small subunit 1

Gene names

    • Name
      RBCS1
    • Synonyms
      RBC5
      , RBCS, RBCS-1

Organism names

Accessions

  • Primary accession
    P16032

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for transit peptide, chain.

TypeIDPosition(s)Description
Transit peptide1-56Chloroplast
ChainPRO_000003152757-182Ribulose bisphosphate carboxylase small subunit, chloroplastic 1

Expression

Induction

The most highly expressed of the 6 small subunit genes.

Interaction

Subunit

Heterohexadecamer of 8 large and 8 small subunits.

Structure

Family & Domains

Sequence similarities

Belongs to the RuBisCO small chain family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Sequence processing
    The displayed sequence is further processed into a mature form.
  • Length
    182
  • Mass (Da)
    20,276
  • Last updated
    1994-10-01 v2
  • Checksum
    7AB023654AF05665
MASSMVSSAAVATVNRTPAQASMVAPFNGLKSVAAFPVTKKNNDITSVATNGGRVQCMQVWPPLGKKKFETLSYLPPLSEESLMKEVQYLLNNGWVPCLEFEPTHGFVYREHGNTPGYYDGRYWTMWKLPMFGCTDPSQVVAELEEAKKAYPEAFIRIIGFDNVRQVQCISFIAYKPASYDA

Features

Showing features for sequence conflict.

TypeIDPosition(s)Description
Sequence conflict25in Ref. 2; AAA33035
Sequence conflict145in Ref. 2; AAA33035

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
L10212
EMBL· GenBank· DDBJ
AAA03693.1
EMBL· GenBank· DDBJ
mRNA
M31640
EMBL· GenBank· DDBJ
AAA33035.1
EMBL· GenBank· DDBJ
mRNA

Similar Proteins

Disclaimer

Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice.
We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.
FeedbackHelp