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Meier, M. ; Sit, R.V.* ; Quake, S.R.*

Proteome-wide protein interaction measurements of bacterial proteins of unknown function.

Proc. Natl. Acad. Sci. U.S.A. 110, 477-482 (2013)
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Despite the enormous proliferation of bacterial genome data, surprisingly persistent collections of bacterial proteins have resisted functional annotation. In a typical genome, roughly 30% of genes have no assigned function. Many of these proteins are conserved across a large number of bacterial genomes. To assign a putative function to these conserved proteins of unknown function, we created a physical interaction map by measuring biophysical interaction of these proteins. Binary protein--protein interactions in the model organism Streptococcus pneumoniae (TIGR4) are measured with a microfluidic high-throughput assay technology. In some cases, informatic analysis was used to restrict the space of potential binding partners. In other cases, we performed in vitro proteome-wide interaction screens. We were able to assign putative functions to 50 conserved proteins of unknown function that we studied with this approach.
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Publication type Article: Journal article
Document type Scientific Article
Language
Publication Year 2013
HGF-reported in Year 2013
ISSN (print) / ISBN 0027-8424
e-ISSN 1091-6490
Quellenangaben Volume: 110, Issue: 2, Pages: 477-482 Article Number: , Supplement: ,
Publisher National Academy of Sciences
Reviewing status Peer reviewed
Institute(s) Helmholtz Pioneer Campus (HPC)
PubMed ID 23267104
Erfassungsdatum 2019-01-17