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sporulation protein YpjB Members of this protein, YpjB, family are restricted to a subset of endospore-forming bacteria, including Bacillus species but not CLostridium or some others. In Bacillus subtilis, ypjB was found to be part of the sigma-E regulon, where sigma-E is a sporulation sigma factor that regulates expression in the mother cell compartment. Null mutants of ypjB show a sporulation defect. This protein family is not, however, a part of the endospore formation minimal gene set. [Cellular processes, Sporulation and germination] |
Jiyao W et al.(2023). "The conserved domain database in 2023.",