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Science 18 April 1980:
Vol. 208. no. 4441, pp. 303 - 305
DOI: 10.1126/science.6154312
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Articles

Science, Vol 208, Issue 4441, 303-305
Copyright © 1980 by American Association for the Advancement of Science

articles

Retrograde axonal transport of endogenous proteins in sciatic nerve demonstrated by covalent labeling in vivo

DJ Fink and H Gainer

Extracellularly applied N-succinimidyl [2,3-3H]propionate was used in vivo to covalently label intra-axonal proteins in the rat sciatic nerve. This technique permitted a unique view of axonal transport of proteins independent of biosynthesis. The proteins detected in slow anterograde transport (1 to 2 millimeters per day) correspond to cytoskeletal proteins described in previous papers. The slowly retrogradely transported component (3 to 6 millimeters per day) was composed primarily of a single protein with a molecular weight of 68,000.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)