tokens: SRFDelta5 acts as a naturally occurring dominant negative regulatory mutant that blocks SRF dependent skeletal alpha-actin , cardiac alpha-actin , smooth alpha-actin , SM22alpha , and SRF promoter-luciferase reporter activities .
folded_tokens: srfdelta5 act as a naturally occur dominant negative regulatory mutant that block srf dependent skeletal alpha-actin , cardiac alpha-actin , smooth alpha-actin , sm22alpha , and srf promoter-luciferase reporter activity .