Inhibition of in vitro nuclear transport by a lectin that binds to nuclear pores - PubMed (original) (raw)
Inhibition of in vitro nuclear transport by a lectin that binds to nuclear pores
D R Finlay et al. J Cell Biol. 1987 Feb.
Abstract
Selective transport of proteins is a major mechanism by which biochemical differences are maintained between the cytoplasm and nucleus. To begin to investigate the molecular mechanism of nuclear transport, we used an in vitro transport system composed of a Xenopus egg extract, rat liver nuclei, and a fluorescently labeled nuclear protein, nucleoplasmin. With this system, we screened for inhibitors of transport. We found that the lectin, wheat germ agglutinin (WGA), completely inhibits the nuclear transport of fluorescently labeled nucleoplasmin. No other lectin tested affected nuclear transport. The inhibition by WGA was not seen when N-acetylglucosamine was present and was reversible by subsequent addition of sugar. When rat liver nuclei that had been incubated with ferritin-labeled WGA were examined by electron microscopy, multiple molecules of WGA were found bound to the cytoplasmic face of each nuclear pore. Gel electrophoresis and nitrocellulose transfer identified one major and several minor nuclear protein bands as binding 125I-labeled WGA. The most abundant protein of these, a 63-65-kD glycoprotein, is a candidate for the inhibitory site of action of WGA on nuclear protein transport. WGA is the first identified inhibitor of nuclear protein transport and interacts directly with the nuclear pore.
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References
- Science. 1966 Dec 30;154(3757):1662-5 - PubMed
- J Biol Chem. 1984 Mar 10;259(5):3308-17 - PubMed
- J Ultrastruct Res. 1969 Jan;26(1):31-43 - PubMed
- Nature. 1970 Aug 15;227(5259):680-5 - PubMed
- Exp Cell Res. 1972;71(2):468-73 - PubMed
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