Anti-σ factor: Proteins from ECF103 encode AS factors with one transmembrane helix (84%) in position +1.
Promoter motif conservation: Putative target promoter motifs are only conserved in the largest subgroups and contain TGTCACAA in -35 and a less conserved TCT in -10.
Summary: ECF103 is regulated by AS factors with one transmembrane helix and either a zinc-binding domain or a DUF4179 (ECF103s2). In agreement with original ECF103 (Staroń et al., 2009), members of ECF103 might be involved in the expression of ABC transporters.
Number of representative ECFs: 181
Number of non-redundant ECFs: 296
Sequences with C-terminal extension: 0.34%
Sequences with N-terminal extension: 0.68%
Overrepresented class: Bacilli [85.64%]
|The third pillar of bacterial signal transduction: classification of the extracytoplasmic function (ECF) sigma factor protein family.||Molecular microbiology||2009||A. Staroń, H. Sofia, S. Dietrich, L. Ulrich, H. Liesegang, T. Mascher||PubMed: 19737356||ECF103, ECF21, ECF123, ECF51, ECF39, ECF281, ECF102, ECF130, ECF122, ECF291, ECF15, ECF242, ECF22, ECF285, ECF106, ECF27, ECF31, ECF240, ECF114, ECF16, ECF38, ECF41, ECF105, ECF116, ECF111, ECF03, ECF239, ECF42, ECF294, ECF17, ECF11, ECF29, ECF235, ECF293, ECF118, ECF265, ECF30, ECF23, ECF14, ECF249, ECF18, ECF115, ECF290, ECF25, ECF121, ECF02, ECF120, ECF289, ECF28, ECF243, ECF19, ECF43, ECF107, ECF12, ECF32, ECF36, ECF292, ECF286, ECF271, ECF26, ECF40, ECF56, ECF33|