Targeting ricin to the ribosome.
Targeting ricin to the ribosome.
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DOI:
10.1016/j.toxicon.2013.02.001
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发表时间:
2013-07
期刊:
影响因子:
2.8
通讯作者:
Tumer, Nilgun E.
中科院分区:
文献类型:
--
作者:
May, Kerrie L.;Yan, Qing;Tumer, Nilgun E.
The plant toxin ricin is highly toxic for mammalian cells and is of concern for bioterrorism. Ricin belongs to a family of functionally related toxins, collectively referred to as ribosome inactivating proteins (RIPs), which disable ribosomes and halt protein synthesis. Currently there are no specific antidotes against ricin or related RIPs. The enzymatic subunit of ricin is an N-glycosidase that depurinates a universally conserved adenine residue within the sarcin/ricin loop (SRL) of the 28S rRNA. This depurination activity inhibits translation and its biochemistry has been intensively studied. Yet, recent developments paint a more complex picture of toxicity, with ribosomal proteins and cellular signaling pathways contributing to the potency of ricin. In particular, several studies have now established the importance of the ribosomal stalk structure in facilitating the depurination activity and ribosome specificity of ricin and other RIPs. This review highlights recent developments defining toxin-ribosome interactions and examines the significance of these interactions for toxicity and therapeutic intervention.
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影响因子:
4.2
作者:
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通讯作者:
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影响因子:
16
作者:
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作者:
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通讯作者:
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DOI:
10.1073/pnas.220247197
发表时间:
2000-11-07
影响因子:
11.1
作者:
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通讯作者:
Diehl, JA
影响因子:
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作者:
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Radford, SE