RT journal article
T1 Screening a Protein Array with Synthetic Biotinylated Inorganic Polyphosphate to Define the Human PolyP-ome
A1 Azevedo, Cristina
A1 Singh, Jyoti
A1 Steck, Nicole
A1 Hofer, Alexandre
A1 Ruiz Rodríguez, Félix Alejandro
A1 Singh, Tanya
A1 Jessen, Henning J.
A1 Saiardi, Adolfo
A2 BiomedicinaBiotecnología y Salud Pública
AB Phenotypes are established by tight regulation on protein functions. This regulation can be mediated allosterically, through protein binding, and covalently, through post-translational modification (PTM). The integration of an ever-increasing number of PTMs into regulatory networks enables and defines the proteome complexity. Protein PTMs can occur enzymatically and nonenzymatically. Polyphosphorylation, which is a recently discovered PTM that belongs to the latter category, is the covalent attachment of the linear ortho-phosphate polymer called inorganic polyphosphate (polyP) to lysine residues. PolyP, which is ubiquitously present in nature, is also known to allosterically control protein function. To date, lack of reagents has prevented the systematic analysis of proteins covalently and/or allosterically associated with polyP. Here, we report on the chemical synthesis of biotin-modified monodisperse short-chain polyP (bio-polyP8-bio) and its subsequent use to screen a human proteome array to identify proteins that associate with polyP, thereby starting to define the human polyP-ome.
PB American Chemical Society
SN 1554-8937
YR 2018
FD 2018
LK http://hdl.handle.net/10498/32948
UL http://hdl.handle.net/10498/32948
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 15-nov-2026