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Comparative Study
. 1995 Aug;15(2):361-72.
doi: 10.1016/0896-6273(95)90040-3.

Characterization of a novel protein regulated during the critical period for song learning in the zebra finch

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Free article
Comparative Study

Characterization of a novel protein regulated during the critical period for song learning in the zebra finch

J M George et al. Neuron. 1995 Aug.
Free article

Abstract

A male zebra finch learns a song by listening to a tutor, but song learning is normally restricted to a critical period in juvenile development. Here we identify an RNA whose expression in the song control circuit is altered during this critical period. The RNA encodes a soluble presynaptic protein that forms a predicted amphipathic alpha helix typical of the lipid-binding domain in apolipoproteins. We show this protein, which we call synelfin, to be the homolog of the human non-A beta component (and its precursor) recently purified from Alzheimer's disease amyloid. We suggest this highly conserved protein may serve a novel function critical to the regulation of vertebrate neural plasticity.

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