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phage shock protein A Members of this family are the phage shock protein PspA, from the phage shock operon. This is a narrower family than the set of PspA and its homologs, sometimes several in a genome, as described by pfam04012. PspA appears to maintain the protonmotive force under stress conditions that include overexpression of certain phage secretins, heat shock, ethanol, and protein export defects. [Cellular processes, Adaptations to atypical conditions] |
Jiyao W et al.(2023). "The conserved domain database in 2023.",