catalog number :
MBS680013
products full name :
mAb to Sigma S
products short name :
Sigma S
products name syn :
MAb to sigmaS (sigma S) subunit of E.coli RNA polymerase; E. coli RNA Sigma S Monoclonal Antibody; Sigma 38; rpoS; appR; katF; nur; otsX; sigS
other names :
RNA polymerase, sigma S (sigma 38) factor; RNA polymerase sigma factor RpoS; RNA polymerase, sigma S (sigma 38) factor; Sigma S; Sigma-38
products gene name :
Sigma S
other gene names :
rpoS; rpoS; abrD; appR; csi2; dpeB; ECK2736; JW5437; katF; nur; otsX; sigS; appR; katF; nur; otsX; sigS
uniprot entry name :
RPOS_ECOLI
reactivity :
Most enterics
sequence positions :
33-256
specificity :
Sigma S (E. coli Sigma S (Strain MG1655))
storage stability :
Store at -20 degree C
tested application :
Western Blot (WB), ELISA (EIA), Transcription Inhibition
app notes :
Transcription Inhibition - Initiation: Yes. Western Blot: Yes - dilute at 1:1000
other info1 :
Immunogen: Recombinant Protein. Reported Reactivity: E Coli, Klebsiella, Salmonella, Serratia, Bordetella and an unidentified protein at 60 kDA. Cross Reactivity Note: E Coli, Klebsiella, Salmonella, Serratia, Bordetella and an unidentified protein at 60 kDA
other info2 :
Polyol-responsive: No. Reconstitution: Add 100ul of ddH2O to the tube containing antibody and mix to dissolve. Product Note: Does not react with Shigella, Vibrio, Pseudomonas, Rhodobacter, Agrobacterium, Streptococcus, Arthrobacter, or Borrelia *Cross reactivity and Applications data is per published literature and/or unpublished data.
products description :
MAb to sigma S subunit of E.coli RNA polymerase. Sigma S is a 38 kDA subunit of the E.coli RNA polymerase. Sigma S is a 38kDa transcription factor of E. coli RNA Polymerase. sigmaS (sigma S) is a 38kDa subunit of the E.coli RNA polymerase. Sigma transcription factor controlling a regulation of genes required for protection against external stresses. Possibly, it affects the expression of katE (catalase HPII), xthA (endonuclease III), the appABC operon and other genes by modifying the affinity of RNA polymerase for the promoters.
ncbi gb acc num :
NC_000913.2
ncbi mol weight :
37,972 Da
ncbi summary :
Polyamine modulon. [More information is available at EcoGene: EG10510]. rpoS encodes the alternative sigma factor S, a subunit of RNA polymerase that acts as the master regulator of the general stress response in Escherichia coli. [More information is available at EcoCyc: EG10510].
uniprot summary :
Function: Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is the master transcriptional regulator of the stationary phase and the general stress response. Controls, positively or negatively, the expression of several hundred genes, which are mainly involved in metabolism, transport, regulation and stress management. Subunit structure: Interacts with the RNA polymerase core enzyme and RssB. Subcellular location: Cytoplasm . Potential. Induction: Subject to complex regulation at multiple levels (transcription, translation, regulation of activity and degradation). Transcription is induced during entry into stationary phase and in response to different stresses. mRNA stability is regulated by small RNA regulators and various proteins such as Hfq, CsdA, CspC and CspE. Finally, the cellular level of RpoS is regulated by proteolysis via RssB and the ClpXP protease. Sequence similarities: Belongs to the sigma-70 factor family. RpoS subfamily. Sequence caution: The sequence BAE76818.1 differs from that shown. Reason: Erroneous termination at position 33. Translated as Gln.The sequence CAA34435.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened.The sequence CAA78692.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened.