HHsearch alignment for GI: 254780694 and conserved domain: TIGR02941

>TIGR02941 Sigma_B RNA polymerase sigma-B factor; InterPro: IPR014288 The bacterial core RNA polymerase complex, which consists of five subunits, is sufficient for transcription elongation and termination but is unable to initiate transcription. Transcription initiation from promoter elements requires a sixth, dissociable subunit called a sigma factor, which reversibly associates with the core RNA polymerase complex to form a holoenzyme . RNA polymerase recruits alternative sigma factors as a means of switching on specific regulons. Most bacteria express a multiplicity of sigma factors. Two of these factors, sigma-70 (gene rpoD), generally known as the major or primary sigma factor, and sigma-54 (gene rpoN or ntrA) direct the transcription of a wide variety of genes. The other sigma factors, known as alternative sigma factors, are required for the transcription of specific subsets of genes. With regard to sequence similarity, sigma factors can be grouped into two classes, the sigma-54 and sigma-70 families. Sequence alignments of the sigma70 family members reveal four conserved regions that can be further divided into subregions eg. sub-region 2.2, which may be involved in the binding of the sigma factor to the core RNA polymerase; and sub-region 4.2, which seems to harbor a DNA-binding 'helix-turn-helix' motif involved in binding the conserved -35 region of promoters recognized by the major sigma factors , . This entry represents the sigma factor, sigmaB. It is restricted to certain species within the order Bacillales including Staphylococcus aureus , Listeria monocytogenes and Bacillus cereus (strain ATCC 14579 / DSM 31) ..
Probab=91.98  E-value=0.21  Score=27.87  Aligned_cols=46  Identities=26%  Similarity=0.244  Sum_probs=39.9

Q ss_pred             CCCCHHHHHHHHHH-HCCCCHHHHHHHHCCCHHHHHHHHHHHHHHHC
Q ss_conf             88897799999999-85999799999949998899999999999807
Q gi|254780694|r  184 FELTGREVECLTWI-SEGKTSDEIAVILGISRNTVNNYIASIMRKTA  229 (246)
Q Consensus       184 ~~LT~RE~eVl~li-a~G~t~~eIA~~L~iS~~TV~~hl~~i~~KLg  229 (246)
T Consensus       205 piLserE~~ii~c~f~enlsQKeTGErlGiSQMHVSRl~R~ai~KL~  251 (256)
T TIGR02941       205 PILSEREKEIIECTFIENLSQKETGERLGISQMHVSRLQRRAIKKLK  251 (256)
T ss_pred             HHCCHHHHHHHHHHHHCCCCCCHHHHHCCHHHHHHHHHHHHHHHHHH
T ss_conf             00054456766655314787300232224035567788899999999