Proteomics

Dataset Information

37

Hybrid structural modeling of protein-RNA complexes using crosslinking of segmentally isotope labeled RNA and tandem mass spectrometry


ABSTRACT: To study protein-RNA interactions at single amino acid and single nucleotide resolution we developed a new approach, termed cross-linking of segmentally isotope labeled RNA and tandem mass spectrometry (CLIR-MS/MS). The method was developed using the PTBP1-EMCV IRES complex as a model system and additionally applied to the U1 snRNP complex. Data from both complexes are included in this submission.

INSTRUMENT(S): LTQ Orbitrap Elite

ORGANISM(S): Homo sapiens  

TISSUE(S): Tissue Not Applicable To Dataset

DISEASE(S): Not Available

SUBMITTER: Alexander Leitner   

PROVIDER: PXD005566 | Pride | 2017-03-27

REPOSITORIES: Pride

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Publications

Structural modeling of protein-RNA complexes using crosslinking of segmentally isotope-labeled RNA and MS/MS.

Dorn G G   Leitner A A   Boudet J J   Campagne S S   von Schroetter C C   Moursy A A   Aebersold R R   Allain F H-T FH  

Nature methods 20170327 5


Ribonucleoproteins (RNPs) are key regulators of cellular function. We established an efficient approach, crosslinking of segmentally isotope-labeled RNA and tandem mass spectrometry (CLIR-MS/MS), to localize protein-RNA interactions simultaneously at amino acid and nucleotide resolution. The approach was tested on polypyrimidine tract binding protein 1 and U1 small nuclear RNP. Our method provides distance restraints to support integrative atomic-scale structural modeling and to gain mechanistic  ...[more]

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