Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of CD4.
Synonyms:
exact_synonym:
down regulation of CD4 biosynthetic process; downregulation of CD4 biosynthetic process; negative regulation of CD4 anabolism; negative regulation of CD4 biosynthesis; negative regulation of CD4 biosynthetic process; negative regulation of CD4 formation; negative regulation of CD4 synthesis