-gustducin, transmits both sweet and sour signals from their surface receptors to the cell interior. That was unexpected because the two types of signals have opposite effects on intracellular cyclic AMP concentrations, and researchers now need to explain how one protein can achieve both. Also reported at the meeting were new findings indicating that nerve growth factor (NGF), generally known for promoting neuronal survival, can actually kill some nerve cells at an early stage of embryonic development, possibly as part of the normal neuronal pruning that goes on then. NGF apparently acts through a receptor protein called p75, although exactly how is unclear.
Science. ISSN 0036-8075 (print), 1095-9203 (online)
Magazine | News | Signaling | Careers | Multimedia | Collections | Help | Site Map | RSS
Subscribe | Feedback | Privacy / Legal | About Us | Advertise With Us | Contact Us
© 1996 American Association for the Advancement of Science. All Rights Reserved.
AAAS is a partner of HINARI, AGORA, PatientInform, CrossRef, and COUNTER.
You have reached the bottom of the page. Back to top