Cryo-EM structure of the ancient eukaryotic ribosome from the human parasite Giardia lamblia.
Cryo-EM structure of the ancient eukaryotic ribosome from the human parasite Giardia lamblia.
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DOI:
10.1093/nar/gkac046
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发表时间:
2022-02-22
影响因子:
14.9
通讯作者:
Yonath A
中科院分区:
文献类型:
--
作者:
Hiregange DG;Rivalta A;Bose T;Breiner-Goldstein E;Samiya S;Cimicata G;Kulakova L;Zimmerman E;Bashan A;Herzberg O;Yonath A
Giardiasis is a disease caused by the protist Giardia lamblia. As no human vaccines have been approved so far against it, and resistance to current drugs is spreading, new strategies for combating giardiasis need to be developed. The G. lamblia ribosome may provide a promising therapeutic target due to its distinct sequence differences from ribosomes of most eukaryotes and prokaryotes. Here, we report the cryo-electron microscopy structure of the G. lamblia (WB strain) ribosome determined at 2.75 Å resolution. The ribosomal RNA is the shortest known among eukaryotes, and lacks nearly all the eukaryote-specific ribosomal RNA expansion segments. In contrast, the ribosomal proteins are typically eukaryotic with some species-specific insertions/extensions. Most typical inter-subunit bridges are maintained except for one missing contact site. Unique structural features are located mainly at the ribosome’s periphery. These may be exploited as target sites for the design of new compounds that inhibit selectively the parasite’s ribosomal activity.
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影响因子:
48
作者:
Kucukelbir, Alp;Sigworth, Fred J.;Tagare, Hemant D.
通讯作者:
Tagare, Hemant D.
影响因子:
3.7
作者:
Bannerman, Bridget P.;Kramer, Susanne;Carrington, Mark
通讯作者:
Carrington, Mark
影响因子:
9.2
作者:
Ansell, Brendan R. E.;Pope, Bernard J.;Jex, Aaron R.
通讯作者:
Jex, Aaron R.
影响因子:
4.4
作者:
Feng,Jin-Mei;Yang,Chun-Lin;Wen,Jian-Fan
通讯作者:
Wen,Jian-Fan
DOI:
10.1261/rna.076067.120
发表时间:
2020-12-02
期刊:
RNA (New York, N.Y.)
影响因子:
--
作者:
Auffinger P;Ennifar E;D'Ascenzo L
通讯作者:
D'Ascenzo L