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    SIG2 RNApolymerase sigma subunit 2 [ Arabidopsis thaliana (thale cress) ]

    Gene ID: 837376, updated on 18-Sep-2024

    Summary

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    Official Symbol
    SIG2
    Official Full Name
    RNApolymerase sigma subunit 2
    Primary source
    TAIR:AT1G08540
    Locus tag
    AT1G08540
    See related
    Araport:AT1G08540
    Gene type
    protein coding
    RefSeq status
    REVIEWED
    Organism
    Arabidopsis thaliana (ecotype: Columbia)
    Lineage
    Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
    Also known as
    ABC1; ATSIG1; ATSIG2; PUTATIVE PLASTID RNA POLYMERASE SIGMA-SUBUNIT; RNA POLYMERASE SIGMA SUBUNIT 1; RNApolymerase sigma subunit 2; SIG1; SIGA; SIGB; SIGMA FACTOR 1; SIGMA FACTOR 2; SIGMA FACTOR B; T27G7.22
    Summary
    Enodes a subunit of chloroplast RNA polymerase, confers the ability to recognize promoter sequences on the core enzyme. SIG1 is induced by red and blue light.
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    Genomic context

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    See SIG2 in Genome Data Viewer
    Location:
    chromosome: 1
    Exon count:
    7
    Sequence:
    Chromosome: 1; NC_003070.9 (2703295..2706860)

    Chromosome 1 - NC_003070.9Genomic Context describing neighboring genes Neighboring gene fatty acyl-ACP thioesterases B Neighboring gene ALBINA 1 Neighboring gene chitinase-like protein Neighboring gene non-photochemical quenching 1 Neighboring gene syntaxin of plants 111 Neighboring gene atypical CYS HIS rich thioredoxin 4

    Genomic regions, transcripts, and products

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    Genomic Sequence:
    NC_003070.9

    Go to nucleotide: Graphics FASTA GenBank

    Bibliography

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    Related articles in PubMed

    1. Phytochrome-induced SIG2 expression contributes to photoregulation of phytochrome signalling and photomorphogenesis in Arabidopsis thaliana. Oh S, et al. J Exp Bot, 2013 Dec. PMID 24078666, Free PMC Article
    2. An Arabidopsis sigma factor (SIG2)-dependent expression of plastid-encoded tRNAs in chloroplasts. Kanamaru K, et al. Plant Cell Physiol, 2001 Oct. PMID 11673617
    3. Chloroplast development in Arabidopsis thaliana requires the nuclear-encoded transcription factor sigma B. Shirano Y, et al. FEBS Lett, 2000 Nov 24. PMID 11094163
    4. Light induction of Arabidopsis SIG1 and SIG5 transcripts in mature leaves: differential roles of cryptochrome 1 and cryptochrome 2 and dual function of SIG5 in the recognition of plastid promoters. Onda Y, et al. Plant J, 2008 Sep. PMID 18532976
    5. Characterization of Arabidopsis plastid sigma-like transcription factors SIG1, SIG2 and SIG3. Privat I, et al. Plant Mol Biol, 2003 Feb. PMID 12602869

    See all (12) citations in PubMed

    GeneRIFs: Gene References Into Functions

    What's a GeneRIF?
    1. Phytochrome-induced SIG2 expression contributes to photoregulation of phytochrome signalling and photomorphogenesis in Arabidopsis thaliana.
      Title: Phytochrome-induced SIG2 expression contributes to photoregulation of phytochrome signalling and photomorphogenesis in Arabidopsis thaliana.
    Submit: New GeneRIF Correction

    Interactions

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    Products Interactant Other Gene Complex Source Pubs Description

    General gene information

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    NM_100727.4

    Gene Ontology Provided by TAIR

    Function Evidence Code Pubs
    enables sigma factor activity IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    enables sigma factor activity ISS
    Inferred from Sequence or Structural Similarity
    more info
    		 PubMed 
    Process Evidence Code Pubs
    involved_in DNA-templated transcription initiation IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    acts_upstream_of_or_within DNA-templated transcription initiation TAS
    Traceable Author Statement
    more info
    		 PubMed 
    involved_in cellular response to light stimulus IEP
    Inferred from Expression Pattern
    more info
    		 PubMed 
    involved_in cellular response to light stimulus IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    involved_in chloroplast organization IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    involved_in regulation of RNA biosynthetic process IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    acts_upstream_of_or_within response to blue light IGI
    Inferred from Genetic Interaction
    more info
    		 PubMed 
    acts_upstream_of_or_within response to red light IEP
    Inferred from Expression Pattern
    more info
    		 PubMed 
    involved_in tRNA metabolic process IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    Component Evidence Code Pubs
    located_in chloroplast IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    located_in chloroplast ISM
    Inferred from Sequence Model
    more info
    		  

    General protein information

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    Preferred Names
    RNApolymerase sigma subunit 2
    NP_172330.1
    • RNApolymerase sigma subunit 2 (SIG2); CONTAINS InterPro DOMAIN/s: RNA polymerase sigma factor, region 2 (InterPro:IPR013325), Winged helix-turn-helix transcription repressor DNA-binding (InterPro:IPR011991), RNA polymerase sigma-70 region 3 (InterPro:IPR007624), RNA polymerase sigma-70 (InterPro:IPR014284), RNA polymerase sigma factor, region 3/4 (InterPro:IPR013324), RNA polymerase sigma-70 region 1.2 (InterPro:IPR009042), RNA polymerase sigma-70 factor (InterPro:IPR000943), RNA polymerase sigma factor, SigB/SigC/SigD, plastid (InterPro:IPR016262), RNA polymerase sigma-70 region 2 (InterPro:IPR007627), RNA polymerase sigma-70 region 4 (InterPro:IPR007630); BEST Arabidopsis thaliana protein match is: RNApolymerase sigma-subunit F (TAIR:AT2G36990.1); Has 24116 Blast hits to 24030 proteins in 2811 species: Archae - 0; Bacteria - 17119; Metazoa - 4; Fungi - 2; Plants - 243; Viruses - 12; Other Eukaryotes - 6736 (source: NCBI BLink).

    NCBI Reference Sequences (RefSeq)

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    Genome Annotation

    The following sections contain reference sequences that belong to a specific genome build. Explain

    Reference assembly

    Genomic

    1. NC_003070.9 Reference assembly

      Range
      2703295..2706860
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NM_100727.4 → NP_172330.1  RNApolymerase sigma subunit 2 [Arabidopsis thaliana]

      See identical proteins and their annotated locations for NP_172330.1

      Status: REVIEWED

      UniProtKB/Swiss-Prot
      O22056, O22455, Q8GWC1
      UniProtKB/TrEMBL
      A0A178WI37, A0A5S9TA53
      Conserved Domains (4) summary
      TIGR02997
      Location:272 → 556
      Sig70-cyanoRpoD; RNA polymerase sigma factor, cyanobacterial RpoD-like family
      pfam04539
      Location:415 → 490
      Sigma70_r3; Sigma-70 region 3
      pfam04542
      Location:336 → 405
      Sigma70_r2; Sigma-70 region 2
      pfam04545
      Location:504 → 556
      Sigma70_r4; Sigma-70, region 4
    Nucleotide Protein
    Heading Accession and Version
    Protein Accession Links
    GenPept Link UniProtKB Link
    O22056.2

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