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Polyphosphate exhibits a unique post-translational modification-like function, known as histidine polyphosphate modification (HPM), marked by a robust non-covalent interaction with histidine repeat proteins. Here, we present a protocol for detecting HPM of human proteins via maltose-binding protein-tagged expression in E. coli. We describe steps for detecting HPM by observing electrophoretic mobility shifts on NuPAGE gels followed by western blot. We then detail procedures for analyzing the influence of ionic strength and pH on HPM. For complete details on the use and execution of this protocol, please refer to Neville et al.1.
Pubmed ID: 38470910
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This monoclonal targets MBL2
View all literature mentionsThis polyclonal secondary targets IgG (H+L)
View all literature mentionsThis polyclonal secondary targets IgG (H+L)
View all literature mentionsThis monoclonal targets MBL2
View all literature mentions