Muscleblind-like proteins use modular domains to localize RNAs by riding kinesins and docking to membranes.
Muscleblind-like proteins use modular domains to localize RNAs by riding kinesins and docking to membranes.
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DOI:
10.1038/s41467-023-38923-6
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发表时间:
2023-06-09
影响因子:
16.6
通讯作者:
Wang, Eric T.
中科院分区:
文献类型:
--
作者:
Hildebrandt, Ryan P.;Moss, Kathryn R.;Janusz-Kaminska, Aleksandra;Knudson, Luke A.;Denes, Lance T.;Saxena, Tanvi;Boggupalli, Devi Prasad;Li, Zhuangyue;Lin, Kun;Bassell, Gary J.;Wang, Eric T.
RNA binding proteins (RBPs) act as critical facilitators of spatially regulated gene expression. Muscleblind-like (MBNL) proteins, implicated in myotonic dystrophy and cancer, localize RNAs to myoblast membranes and neurites through unknown mechanisms. We find that MBNL forms motile and anchored granules in neurons and myoblasts, and selectively associates with kinesins Kif1bα and Kif1c through its zinc finger (ZnF) domains. Other RBPs with similar ZnFs associate with these kinesins, implicating a motor-RBP specificity code. MBNL and kinesin perturbation leads to widespread mRNA mis-localization, including depletion of Nucleolin transcripts from neurites. Live cell imaging and fractionation reveal that the unstructured carboxy-terminal tail of MBNL1 allows for anchoring at membranes. An approach, termed RBP Module Recruitment and Imaging (RBP-MRI), reconstitutes kinesin- and membrane-recruitment functions using MBNL-MS2 coat protein fusions. Our findings decouple kinesin association, RNA binding, and membrane anchoring functions of MBNL while establishing general strategies for studying multi-functional, modular domains of RBPs. RNA localization is mediated by kinesin motors and anchoring. However, mechanisms underlying specificity are unclear. Here, the authors find that MBNL protein’s zinc fingers prefer specific kinesins, and its unstructured tail mediates membrane anchoring.
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DOI:
10.1093/brain/awx370
发表时间:
2018-03-01
期刊:
Brain : a journal of neurology
影响因子:
--
作者:
Brenner D;Yilmaz R;Müller K;Grehl T;Petri S;Meyer T;Grosskreutz J;Weydt P;Ruf W;Neuwirth C;Weber M;Pinto S;Claeys KG;Schrank B;Jordan B;Knehr A;Günther K;Hübers A;Zeller D;Kubisch C;Jablonka S;Sendtner M;Klopstock T;de Carvalho M;Sperfeld A;Borck G;Volk AE;Dorst J;Weis J;Otto M;Schuster J;Del Tredici K;Braak H;Danzer KM;Freischmidt A;Meitinger T;Strom TM;Ludolph AC;Andersen PM;Weishaupt JH;German ALS network MND-NET
通讯作者:
German ALS network MND-NET
影响因子:
56.9
作者:
Brendza, RP;Serbus, LR;Saxton, WM
通讯作者:
Saxton, WM
影响因子:
7
作者:
Elvira, G;Wasiak, S;Sossin, WS
通讯作者:
Sossin, WS
DOI:
10.1083/jcb.201408056
发表时间:
2015-02-02
期刊:
The Journal of cell biology
影响因子:
--
作者:
Bentley M;Decker H;Luisi J;Banker G
通讯作者:
Banker G
影响因子:
16
作者:
Batra, Ranjan;Charizanis, Konstantinos;Manchanda, Mini;Mohan, Apoorva;Li, Moyi;Finn, Dustin J.;Goodwin, Marianne;Zhang, Chaolin;Sobczak, Krzysztof;Thornton, Charles A.;Swanson, Maurice S.
通讯作者:
Swanson, Maurice S.