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Figure 1

From: Interactome analyses revealed that the U1 snRNP machinery overlaps extensively with the RNAP II machinery and contains multiple ALS/SMA-causative proteins

Figure 1

FET proteins and MATR3 associate with U1 snRNP. (a) Immunoprecipitations (IPs) were carried out with antibodies to FET proteins or MATR3 followed by analysis on a Coomassie-stained gel. Molecular weight markers and protein identified by mass spectrometry are indicated. (b) IPs were carried out from nuclear extract using a negative control antibody (EIF4A3) or an antibody to the SNRPC subunit of the U1 snRNP followed by Westerns with the indicated antibodies. (c) IPs were carried out with the indicated antibodies from nuclear extract treated with a U1 snRNA AMO or a negative control AMO followed by Western using the SNRPC antibody. (d) Same as (c) except that total RNAs from the IPs were examined on a denaturing gel stained with ethidium bromide.

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