Q332U5 · RPOA_LACSA

Function

function

DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.

Catalytic activity

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
Cellular ComponentDNA-directed RNA polymerase complex
Molecular FunctionDNA binding
Molecular FunctionDNA-directed 5'-3' RNA polymerase activity
Molecular Functionprotein dimerization activity
Biological ProcessDNA-templated transcription

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    DNA-directed RNA polymerase subunit alpha
  • EC number
  • Short names
    PEP
  • Alternative names
    • Plastid-encoded RNA polymerase subunit alpha
      (RNA polymerase subunit alpha
      )

Gene names

    • Name
      rpoA

Encoded on

  • Chloroplast

Organism names

  • Taxonomic identifier
  • Strains
    • cv. Cisco
    • cv. Salinas
  • Taxonomic lineage
    Eukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > asterids > campanulids > Asterales > Asteraceae > Cichorioideae > Cichorieae > Lactucinae > Lactuca

Accessions

  • Primary accession
    Q332U5
  • Secondary accessions
    • Q1KXJ0

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00002259221-335DNA-directed RNA polymerase subunit alpha

Interaction

Subunit

In plastids the minimal PEP RNA polymerase catalytic core is composed of four subunits: alpha, beta, beta', and beta''. When a (nuclear-encoded) sigma factor is associated with the core the holoenzyme is formed, which can initiate transcription.

Structure

Family & Domains

Features

Showing features for region.

TypeIDPosition(s)Description
Region1-231Alpha N-terminal domain (alpha-NTD)
Region263-335Alpha C-terminal domain (alpha-CTD)

Domain

The N-terminal domain is essential for RNAP assembly and basal transcription, whereas the C-terminal domain is involved in interaction with transcriptional regulators and with upstream promoter elements.

Sequence similarities

Belongs to the RNA polymerase alpha chain family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    335
  • Mass (Da)
    38,294
  • Last updated
    2005-12-06 v1
  • Checksum
    EEB3AD56F6CE1E28
MVREKITVSTRTLQWKCVESAADSKRLLYGRFILSPLMKGQADTIGIAMRRALLGEIEGTCITRAKSEKISHEYSTIMGIQESVHEILMNLKEIVLRSNLYGTCEASICVRGPGYVTAQDIILPPYVEILDNTQHIASLTEPIELVIGLQIEKNRGYLIKAPNTFQDGSYPIDPVFMPVRNANHSIHSYENGNKEILFLEIWTNGSLTPKEALYEASRNLIDLLIPFLHTKEENLNLEGNQHMVPLPPFTFYDKLAKLTKNKKKMALKSIFIDQSELPPRIYNCLKRSNIYTLLDLLNNSQEDLMKMEHFRIEDVKQILGILEKNFVIDLPKNKF

Sequence caution

The sequence ABD47264.1 differs from that shown. Reason: Erroneous initiation

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AP007232
EMBL· GenBank· DDBJ
BAE47627.1
EMBL· GenBank· DDBJ
Genomic DNA
DQ383816
EMBL· GenBank· DDBJ
ABD47264.1
EMBL· GenBank· DDBJ
Genomic DNA Different initiation

Genome annotation databases

Similar Proteins

Disclaimer

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