pfam15714: SpoVT_C (This model is not part of the current CDD release)
Stage V sporulation protein T C-terminal, transcription factor
SpoVT_C is the C-terminal part of the stage V sporulation protein T, a transcription factor involved in endospore formation in Gram-positive bacteria such as Bacillus subtilis. Sporulation is induced by conditions of environmental stress to protect the genome. SpoVT behaves as a tetramer that shows an overall significant distortion mediated by electrostatic interactions. Two monomers dimerize via the highly charged N-terminal AbrB-like domains, family pfam04014, to form swapped-hairpin beta-barrels. These asymmetric dimers then form tetramers through the formation of mixed helix bundles between their C-terminal domains. The C-termini themselves fold as GAF (cGMP-specific and cGMP-stimulated phosphodiesterases, Anabaena adenylate cyclases, and Escherichia coli FhlA) domains.
Jiyao W et al.(2023). "The conserved domain database in 2023.",