Scientific focus


WP3

IDP Function mechanisms

Objectives

WP3 will exploit methods and analyses from previous work packages trying to provide a full understanding of mechanisms through which IDPs exert biological functions. IDP behavior will be addressed in a context-dependent way. It will focus on elucidating protein function from proteins with dynamically changing native conformations (e.g. involved in “fuzzy” binding), allosteric behavior and dynamics of local structures.

Task list

WP Information

WP type:

research


Duration:

M9 – M63


Person months:

90


WP leader:

VUB, Peter Tompa

  • Task 3.1 – IDR functional ontology: elucidating protein function described in the PED database which includes proteins with dynamically changing native conformations, also known as structural ensembles.
  • Task 3.2 – NMR derived IDR analysis:NMR secondary chemical shifts represent an alternative source of information including statistical information about the dynamics of local structures. Task 3.2 will provide a detailed analysis and comparison with PED data to highlight differences and similarities.
  • Task 3.3 – Linear motif covariation analysis: Covariation analysis is the amount of variation in multiple-sequence alignments which can be explained by constraints due to structural proximity. In the case of linear motifs (LMs) in IDPs, covariance will be measured between LMs and the interaction pockets of the protein domains it is bound to
  • Task 3.4 – Analyze allostery-disorder transitions: an analysis of allosteric behavior.
  • Task 3.5 – IDR domain covariation analysis: an analysis of covariation analysis For longer IDR regions known as “disordered domains”. Covariance will be measured and analysed for the region itself. and repetition.
  • Task 3.6 – Describe fuzzy complexes: an analysis on protein complexes exploiting IDRs involved in “fuzzy” binding. The latter are not fully understood and overlap with IDRs driving phase-transitions. Starting from FuzzDB examples, the analysis will extend to cases identified in WP1 as well as from the relevant literature.
Deliverables

D3.1

Description of molecular movements in structural IDR ensembles
[Confidential]

D3.2

Description of covariation in IDRs
[Confidential]