| Regulated Operon: | spoIVCB-spoIIIC | 
| Genes | Synonyms | Direction | Genome position | Function | COG ID | Genus clusters | 
|---|---|---|---|---|---|---|
| spoIVCB | cisB, sigK | + | 2652219..2652689 | RNA polymerase sporulation-specific sigma factor (sigma-K) (N-terminal half) | COG1191 | sigK-BAC | 
| spoIIIC | sigK, spoIVD, spoIVE | + | 2700564..2700980 | RNA polymerase sporulation-specific sigma factor (sigma-K) (C-terminal half) | COG1191 | sigK-BAC sigK-BAC | 
| Operon evidence: | upstream and downstream genes are in opposite directions | 
|---|---|
| Reference: | Stragier P, et al. (1989), Errington J, et al. (1988) | 
| Comments: | spoIVCB and spoIIIC form a composite gene in the mother cell during sporulation by excising the intervening DNA sequence. | 
| Binding factor | Regulation | Location | Absolute position | Binding seq.(cis-element) | Experimental evidence | 
|---|---|---|---|---|---|
| GerE | Negative | -9:+22 | 2652171..2652201 | ATACATTTACATATAGGCTTTTGCCTACATA | Zheng L, et al. (1992): RO Ichikawa H, et al. (1999): FT RG | 
| GerE | Negative | -1:+31 | 2652179..2652210 | ACATATAGGCTTTTGCCTACATACTTTTGTGG | Zheng L, et al. (1992): RO Ichikawa H, et al. (1999): FT RG | 
| SigE | Promoter | -39:+9 | 2652141..2652188 | CGGTACAGACACAGACAGCCTCCCGGTCACATACATTTACATATAGGC | Kunkel B, et al. (1988): PE RG | 
| SigK | Promoter | -39:+9 | 2652141..2652188 | CGGTACAGACACAGACAGCCTCCCGGTCACATACATTTACATATAGGC | Kunkel B, et al. (1988): PE RG Kroos L, et al. (1989): RO, SDS-PAGE | 
| SpoIIID | Positive | -36:-16 | 2652144..2652164 | TACAGACACAGACAGCCTCCC | Halberg R, et al. (1994): FT RO | 
| SpoIIID | Positive | +78:+100 | 2652257..2652279 | TAAAGAGCTTGTCTTTTTAGTAT | Halberg R, et al. (1994): FT RO | 
| SpoIIID | Positive | +109:+133 | 2652288..2652312 | AAAAACAATGCCTTTCCACAACCGC | Halberg R, et al. (1994): FT RO | 
| Terminator sequence | Absolute position | Position from stop codon | Free energy [kcal/mol] | Downstream of | 
|---|---|---|---|---|
| AAGAAGCCGGATCTCATACTCCGGCTTTCTCTATTTGAAA >>>>>> <<<<<< | spoIIIC | 


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