RpoA

• Description: RNA polymerase alpha subunit
  
  

Gene name	rpoA
Synonyms
Essential	yes PubMed
Product	RNA polymerase alpha subunit
Function	transcription
MW, pI	34 kDa, 4.593
Gene length, protein length	942 bp, 314 aa
Immediate neighbours	rpsK, rplQ
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

transcription, essential genes

This gene is a member of the following regulons

stringent response

The gene

Basic information

• Locus tag: BSU01430

Phenotypes of a mutant

essential PubMed

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1) (according to Swiss-Prot)

• Protein family: RNA polymerase alpha chain family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:
  • RpoA-RpoB-RpoC PubMed
  • CcpN-RpoA PubMed
  • RpoA (C-terminal domain) -Spx PubMed
  • MgsR-RpoA PubMed

• Localization:

Database entries

• Structure: 1Z3E (C-terminal domain, complex with Spx)

• UniProt: P20429

• KEGG entry: [2]

• E.C. number: 2.7.7.6

Expression and regulation

• Operon:

• Sigma factor:

• Regulation:
  • RelA dependent downregulation (Class I) during stringent response PubMed

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system: B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH), available in Stülke lab

• Antibody:

References

Valerie Lamour, Lars F Westblade, Elizabeth A Campbell, Seth A Darst
Crystal structure of the in vivo-assembled Bacillus subtilis Spx/RNA polymerase alpha subunit C-terminal domain complex.
J Struct Biol: 2009, 168(2);352-6
[PubMed:19580872] [WorldCat.org] [DOI] (I p)

Claudia Rollenhagen, Haike Antelmann, Janine Kirstein, Olivier Delumeau, Michael Hecker, Michael D Yudkin
Binding of sigma(A) and sigma(B) to core RNA polymerase after environmental stress in Bacillus subtilis.
J Bacteriol: 2003, 185(1);35-40
[PubMed:12486038] [WorldCat.org] [DOI] (P p)

P J Lewis, S D Thaker, J Errington
Compartmentalization of transcription and translation in Bacillus subtilis.
EMBO J: 2000, 19(4);710-8
[PubMed:10675340] [WorldCat.org] [DOI] (P p)

J W Suh, S A Boylan, S H Oh, C W Price
Genetic and transcriptional organization of the Bacillus subtilis spc-alpha region.
Gene: 1996, 169(1);17-23
[PubMed:8635744] [WorldCat.org] [DOI] (P p)

S A Boylan, J W Suh, S M Thomas, C W Price
Gene encoding the alpha core subunit of Bacillus subtilis RNA polymerase is cotranscribed with the genes for initiation factor 1 and ribosomal proteins B, S13, S11, and L17.
J Bacteriol: 1989, 171(5);2553-62
[PubMed:2496109] [WorldCat.org] [DOI] (P p)

J W Suh, S A Boylan, C W Price
Gene for the alpha subunit of Bacillus subtilis RNA polymerase maps in the ribosomal protein gene cluster.
J Bacteriol: 1986, 168(1);65-71
[PubMed:3093467] [WorldCat.org] [DOI] (P p)