INCORPORATION OF H3-URIDINE AND ISOLATION AND CHARACTERIZATION OF RNA FROM SQUID AXON

H3‐Uridine microinjected in the giant axons of the squid is incorporated in a TCA insoluble material. There is no difference between stimulated and resting axons as to the amount incorporated. The amount incorporated is increased if the stimulation precedes the microinjection of the tracer. RNA was purified and characterized from the axoplasm, axon sheaths and from a purified membrane preparation obtained from squid retinal nerve. Copyright © 1969 Wiley‐Liss, Inc.