>TIGR02850 spore_sigG RNA polymerase sigma-G factor; InterPro: IPR014212 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 , . Members of this entry comprise the Firmicutes lineage endospore formation-specific sigma factor SigG. It is also designated stage III sporulation protein G (SpoIIIG). Members of this entry are closely related to sigma-F (SpoIIAC), another sporulation sigma factor.; GO: 0003677 DNA binding, 0003700 transcription factor activity, 0016987 sigma factor activity, 0006352 transcription initiation, 0006355 regulation of transcription DNA-dependent.

Probab=100.00 E-value=1e-40 Score=291.63 Aligned_cols=252 Identities=23% Similarity=0.329 Sum_probs=219.2 Q ss_pred CCCCCCCCCHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHHHHHHCCCCCCHHHHHHHHHH Q ss_conf 55745587405999999840799999899999999999828599999999943077875655557999988899999988 Q gi|254780611|r 5 NMSIIVNGEIGLSRYIHEIRKIPMLEKQEEYVLAKRYREHGDLSAAHRLVTSHLRLVVKIAMGYRGYGLPISEVVSEGNI 84 (302) Q Consensus 5 ~~~~~~~~~~~~~~yl~~i~~~~~Lt~eee~~l~~~~~~~gd~~Ar~~Li~~nlrlV~~iA~~y~~~g~~~~DLiQeG~i 84 (302) T Consensus 2 kvei~Gv~t~----------klPvl~~~~~~~l~~~~~-~G~~~ar~~l~~~nlrlvlsviqrf~nrGe~~ddlfqvGCi 70 (254) T TIGR02850 2 KVEICGVNTS----------KLPVLKNEEMRELFVRMK-SGDKSAREKLINGNLRLVLSVIQRFNNRGEYVDDLFQVGCI 70 (254) T ss_pred CEEECCCCCC----------CCCCCCHHHHHHHHHHHH-CCHHHHHHHHHHHHHHHHHHHHHHHHCCCCHHHHHHHHHHH T ss_conf 2241265500----------055435478999999985-12078999987522688888888751145403456763257 Q ss_pred HHHHHHHHCCCCCCCCHHHHHHHHHHHHHHHHHHCCCCCHHHCCCCHHHHHHHHHHHHHHHHHHHHCCCCCCHHHHHHHH Q ss_conf 89989862185345689997577899999985320246001102300358999999997887866244788824677888 Q gi|254780611|r 85 GLMQAVKKFDPERGFRLATYSMWWIKAAMQEYILRSWSLVKIGTTANQKRLFFNLRRLKGHLQAITDNNLKPEQVVAIAK 164 (302) Q Consensus 85 GLi~Ai~kFDp~kG~~FsTYA~~wIr~~I~~~i~~~~~~IRiP~~~~~r~l~~~~rk~~~~~~~~~~~~~~~~~~~eiA~ 164 (302) T Consensus 71 Gl~k~idnfdl~~nv~fstyavPmiiGeirrylrdn~-~irvsrs-----lrd~ay~alqvr~~l~~~~~~eP~~~~ia~ 144 (254) T TIGR02850 71 GLIKSIDNFDLSQNVKFSTYAVPMIIGEIRRYLRDNN-PIRVSRS-----LRDIAYKALQVRDKLVSKNSKEPTVSEIAK 144 (254) T ss_pred HHHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHCCC-CEEEHHH-----HHHHHHHHHHHHHHHHHHHCCCCCHHHHHH T ss_conf 7777655310111320011346678898899852487-4130355-----889999999999999853125875889998 Q ss_pred HCCCCCCCCCCCCCCCCCCCCHHHHCCCCCCCCCCHHCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHHHH Q ss_conf 61898321100000012234335520232345320000012356870565566666667779999996219999999999 Q gi|254780611|r 165 KLNVSESEVISMNCRLAGDESLNALINSSDKNSSQWQDWLVYDHDGQEQVLIEKEERKNRRNMLTRSMSVLNPRERRIFE 244 (302) Q Consensus 165 ~Lgis~~~v~~l~~~~~~~~SLd~~i~~~d~~~~~~~d~l~~~~~~~~~~~~e~~e~~~~~~~L~~~l~~L~~rEr~II~ 244 (302) T Consensus 145 ~l~~~~~~~v~aldaiq~PvslfeP~y~d~Gd~i~vmdq~~d~~~~d~~W~~--------~~~l~~~~~~l~~re~~il~ 216 (254) T TIGR02850 145 ELDVPKEEVVFALDAIQDPVSLFEPIYNDGGDPIYVMDQISDEKNKDEQWLE--------EIALKEALKRLNEREKLILK 216 (254) T ss_pred HHCCCHHHHHHHHHHHCCCHHHHHHHHCCCCCEEEEEECCCCHHHHHHHHHH--------HHHHHHHHHHHHHHHHHHHH T ss_conf 7347557877656642164234310013799748874010020345699998--------88999999987667887777 Q ss_pred HHHCCCCCCCHHHHHHHHCCCHHHHHHHHHHHHHHHHHH Q ss_conf 982788888989999997789999999999999999999 Q gi|254780611|r 245 ARRLQENPVTLENLSSEFEVSRERVRQIEARAFKKVQES 283 (302) Q Consensus 245 ~ry~~~~~~Tl~EIa~~lgiS~eRVrQI~~~AL~kLR~~ 283 (302) T Consensus 217 ~rff~G--~tqmeva~eiGisqaqvsrlek~a~~~~~k~ 253 (254) T TIGR02850 217 LRFFEG--KTQMEVAEEIGISQAQVSRLEKAALKHMRKY 253 (254) T ss_pred HHHHCC--CHHHHHHHHHCCHHHHHHHHHHHHHHHHHHC T ss_conf 553146--3133456540301688888889999997512

HHsearch alignment for GI: 254780611 and conserved domain: TIGR02850