Proteomics

Dataset Information

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Serial interactome capture of the human cell nucleus


ABSTRACT: Novel RNA-guided cellular functions are paralleled by an increasing number of RNA binding proteins (RBPs). We present “serial interactome capture” (serIC), a multiple purification procedure of UV-crosslinked poly(A)-RNA-protein complexes that enables global RBP detection with maximal specificity. We apply serIC to nuclei of proliferating K562 cells to obtain the first human nuclear interactome. The domain composition of the 382 identified nuclear RBPs markedly differs from previous IC experiments, including fewer factors without known RNA binding domains that are in better agreement with computationally predicted RNA binding. serIC extends the number of DNA-RNA binding proteins (DRBPs), and reveals a network of RBPs involved in p53 signaling and double strand break repair. serIC is an effective tool to couple global RBP capture with additional selection or labelling steps for specific detection of highly purified RBPs. The nuclear interactome presented here is a stepping-stone towards deciphering of the functional RNA-protein network in the mammalian nucleus.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Cell Suspension Culture

DISEASE(S): Chronic Myeloid Leukemia

SUBMITTER: David Meierhofer  

LAB HEAD: Ulf Örom

PROVIDER: PXD003664 | Pride | 2016-03-31

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
Cytoplasm_1D.raw Raw
Cytoplasm_SCX_2.raw Raw
Cytoplasm_SCX_3.raw Raw
Cytoplasm_SCX_4.raw Raw
Cytoplasm_SCX_5.raw Raw
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Publications

Serial interactome capture of the human cell nucleus.

Conrad Thomas T   Albrecht Anne-Susann AS   de Melo Costa Veronica Rodrigues VR   Sauer Sascha S   Meierhofer David D   Ørom Ulf Andersson UA  

Nature communications 20160404


Novel RNA-guided cellular functions are paralleled by an increasing number of RNA-binding proteins (RBPs). Here we present 'serial RNA interactome capture' (serIC), a multiple purification procedure of ultraviolet-crosslinked poly(A)-RNA-protein complexes that enables global RBP detection with high specificity. We apply serIC to the nuclei of proliferating K562 cells to obtain the first human nuclear RNA interactome. The domain composition of the 382 identified nuclear RBPs markedly differs from  ...[more]

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