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The level of arginine:glycine amidinotransferase in liver of the developing chick embryo is partially suppressed following injection of arginine into the yolk, and the level can be completely suppressed following injection of guanidinoacetate or creatine (Walker, J.B. (1963), Proc. Soc. Exp. Biol. Med. 112, 245; Walker, J.B., and Wang, S.-H. (1964),(More)
Equine plasma lipoproteins were fractionated into VLDL, LDL-1, LDL-2 and HDL by density gradient ultracentrifugation. From each lipoprotein fraction, five apo C like peptides of approx. M(r) 1400, 10000, 9500, 9000 and 8000 were detected by SDS-polyacrylamide gel electrophoresis. After partial purification by Sephadex G-75, one fraction, showing a strong(More)
354 nature genetics • volume 27 • april 2001 One of the major challenges in neurobiology is to find the links between electrophysiological, cellular and molecular events in neurons as they relate to longterm memory formation. At the cellular level, the prevailing models that account for retention of learning by experience include the strengthening of(More)
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