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Updated: Jul 11, 2026

Visual and Microscopic Evaluation of Streptomyces Developmental Mutants
Published on: September 12, 2018
FtsY affects sporulation and antibiotic production by whiH in Streptomyces coelicolor
Xue-Ling Shen1, Hui-Jun Dong, Xiao-Ping Hou
1Zhejiang University Institute of Biochemistry, 388# Yuhangtang Road, Hangzhou 310058, PR China.
Abstract:
FtsY, the Signal Recognition Particle (SRP) receptor in bacteria, is known to facilitate the cotranslational protein targeting by recruiting SRP-protein complex to secYEG. We show in this work that deletion of the ftsY gene in Streptomyces coelicolor would also lead to complete blockage of sporulation process and reduced production of antibiotic actinorhodin. These defects cannot be complemented by only the NG domain of FtsY, while full-length ftsY was able to restore spore generation and increase production of actinorhodin in ftsY-disrupted strains. Further transcriptional analysis on sporulation controlling genes, i.e., whiG, whiB, whiH, and prox, indicated that the regulation of sporulation by ftsY is likely to take effect through whiH.
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