. "Any process that modulates the frequency, rate or extent of protein ubiquitination involved in ubiquitin-dependent protein catabolic process." . . . . . "regulation of protein ubiquitination involved in ubiquitin-dependent protein catabolic process" . "regulation of myofibrillar protein ubiquitination during ubiquitin-dependent protein breakdown" . "regulation of myofibrillar protein ubiquitination during ubiquitin-dependent protein catabolic process" . "regulation of myofibrillar protein ubiquitination during ubiquitin-dependent protein catabolism" . "regulation of myofibrillar protein ubiquitination during ubiquitin-dependent protein degradation" . "regulation of protein degradation tagging activity" . "regulation of protein ubiquitination during ubiquitin-dependent protein breakdown" . "regulation of protein ubiquitination during ubiquitin-dependent protein catabolic process" . "regulation of protein ubiquitination during ubiquitin-dependent protein catabolism" . "regulation of protein ubiquitination during ubiquitin-dependent protein degradation" . "regulation of protein ubiquitinylation during ubiquitin-dependent protein catabolic process" . "regulation of protein ubiquitinylation during ubiquitin-dependent protein catabolism" . "regulation of protein ubiquitylation during ubiquitin-dependent protein catabolic process" . "regulation of protein ubiquitylation during ubiquitin-dependent protein catabolism" . . . . . . . . . . . .