cytoplasmic tubulin from squid nerve fully retains c-terminal tyrosine as a result of the almost zero activity of detyrosinating enzyme and low but definite activity of tubulin-tyrosine ligase in its cytoplasm , while the tyrosine content of cytoplasmic tubulin from mammalian brain is about 30 to 60 % of that expected for the fully tyrosinated state because of much higher activity of detyrosinating enzyme in mammalian brain .
C0423896
content
C0006104
brain