Unknown

Dataset Information

0

Functional proteomics mapping of a human signaling pathway.


ABSTRACT: Access to the human genome facilitates extensive functional proteomics studies. Here, we present an integrated approach combining large-scale protein interaction mapping, exploration of the interaction network, and cellular functional assays performed on newly identified proteins involved in a human signaling pathway. As a proof of principle, we studied the Smad signaling system, which is regulated by members of the transforming growth factor beta (TGFbeta) superfamily. We used two-hybrid screening to map Smad signaling protein-protein interactions and to establish a network of 755 interactions, involving 591 proteins, 179 of which were poorly or not annotated. The exploration of such complex interaction databases is improved by the use of PIMRider, a dedicated navigation tool accessible through the Web. The biological meaning of this network is illustrated by the presence of 18 known Smad-associated proteins. Functional assays performed in mammalian cells including siRNA knock-down experiments identified eight novel proteins involved in Smad signaling, thus validating this integrated functional proteomics approach.

SUBMITTER: Colland F 

PROVIDER: S-EPMC442148 | biostudies-literature | 2004 Jul

REPOSITORIES: biostudies-literature

altmetric image

Publications


Access to the human genome facilitates extensive functional proteomics studies. Here, we present an integrated approach combining large-scale protein interaction mapping, exploration of the interaction network, and cellular functional assays performed on newly identified proteins involved in a human signaling pathway. As a proof of principle, we studied the Smad signaling system, which is regulated by members of the transforming growth factor beta (TGFbeta) superfamily. We used two-hybrid screen  ...[more]

Similar Datasets

| S-EPMC2801564 | biostudies-literature
| S-EPMC5581198 | biostudies-literature
| S-EPMC2884164 | biostudies-literature
| S-EPMC6562010 | biostudies-literature
| S-EPMC8983558 | biostudies-literature
| S-EPMC8468661 | biostudies-literature
| S-EPMC6928143 | biostudies-literature
| S-EPMC5024637 | biostudies-literature
| S-EPMC2780394 | biostudies-literature
| S-EPMC7692325 | biostudies-literature