Any process that stops, prevents or reduces the frequency, rate or extent of protein localization to microtubule.
Synonyms:
exact_synonym:
down regulation of protein localisation to microtubule; down regulation of protein localization to microtubule; downregulation of protein localisation to microtubule; downregulation of protein localization to microtubule; negative regulation of protein localisation to microtubule
narrow_synonym:
inhibition of protein localisation to microtubule; inhibition of protein localization to microtubule