7c97
Cryo-EM structure of an Escherichia coli RNAP-promoter open complex (RPo) with SspACryo-EM structure of an Escherichia coli RNAP-promoter open complex (RPo) with SspA
Structural highlights
FunctionSSPA_ECOLI Forms an equimolar complex with the RNA polymerase holoenzyme (RNAP) but not with the core enzyme. It is synthesized predominantly when cells are exposed to amino acid starvation, at which time it accounts for over 50% of the total protein synthesized. It is involved in the transition from P1 early to P1 late gene expression. Rnk and SspA can functionally replace P.aeruginosa alginate regulatory gene algR2. See Also |
|