BAIT

PRP22

DEAH-box ATP-dependent RNA helicase PRP22, L000001508, YER013W
DEAH-box RNA-dependent ATPase/ATP-dependent RNA helicase; associates with lariat intermediates before the second catalytic step of splicing; mediates ATP-dependent mRNA release from the spliceosome and unwinds RNA duplexes; required for proofreading the exon ligation reaction
Saccharomyces cerevisiae (S288c)
PREY

PRP19

PSO4, E3 ubiquitin-protein ligase PRP19, L000001506, YLL036C
Splicing factor associated with the spliceosome; contains a U-box, a motif found in a class of ubiquitin ligases, and a WD40 domain; relocalizes to the cytosol in response to hypoxia
UPS Project
Saccharomyces cerevisiae (S288c)

Affinity Capture-MS

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.

Publication

Release of SF3 from the intron branchpoint activates the first step of pre-mRNA splicing.

Lardelli RM, Thompson JX, Yates JR, Stevens SW

Eukaryotic pre-mRNA splicing is a complex process requiring the precise timing and action of >100 trans-acting factors. It has been known for some time that the two steps of splicing chemistry require three DEAH-box RNA helicase-like proteins; however, their mechanism of action at these steps has remained elusive. Spliceosomes arrested in vivo at the three helicase checkpoints were purified, and ... [more]

RNA Mar. 01, 2010; 16(3);516-28 [Pubmed: 20089683]

Throughput

  • High Throughput

Additional Notes

  • Proteins pulled down with PRP22-TAP and identified by MudPIT analysis

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
PRP19 PRP22
Affinity Capture-MS
Affinity Capture-MS

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.

High3BioGRID
3602779
PRP19 PRP22
Affinity Capture-MS
Affinity Capture-MS

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.

High-BioGRID
-
PRP22 PRP19
Negative Genetic
Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

High-0.1791BioGRID
1929446
PRP22 PRP19
Reconstituted Complex
Reconstituted Complex

An interaction is detected between purified proteins in vitro.

Low-BioGRID
-

Curated By

  • BioGRID