Protein Family Models

phage shock protein PspA negatively regulates expression of the pspABCDE promoter and of pspG through negative regulation of the psp-specific transcriptional activator PspF; it is also required for membrane integrity, efficient translocation and maintenance of the proton motive force

Date:

2019-06-28

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 PFAM model PF04012. PspA appears to maintain the protonmotive force under stress conditions that include overexpression of certain phage secretins, heat shock, ethanol, and protein export defects.

Gene:

pspA

Date:

2019-09-10

Gene:

pspA

Date:

2020-10-26