Domain hiding |   Altered binding specificity |   Motif hiding |   Composite binding site formation |
  Uncategorised |   Rheostatic |   Allostery |   Avidity-sensing |
  Physicochemical compatibility |   Pre-translational |   Competition |
Type: Binary Subtype: Physicochemical compatibility | Type: Cumulative Subtype: Rheostatic | Type: Specificity Subtype: Altered binding specificity |
Protein | Motif | Start | End | Switch description | Information |
Type: Binary Subtype: Physicochemical compatibility | |||||||
PTM of a residue in a motif or in its flanking regions alters the physicochemical and/or structural compatibility of the motif with its binding partner. This can either induce or enhance an interaction, or result in inhibition or even abrogation of an interaction. | |||||||
IRS1_RAT | LIG_SH2_GRB2 | 895 | 898 | Phosphorylation of Y895 in the SH2-binding motif of Insulin receptor substrate 1 (Irs1) induces binding to the Growth factor receptor-bound protein 2 (Grb2) protein. | |||
LAT_MOUSE | LIG_SH2_GRB2 | 175 | 178 | Phosphorylation of Y175 in the SH2-binding motif of Linker for activation of T-cells family member 1 (Lat) induces binding to the Growth factor receptor-bound protein 2 (Grb2) protein. | |||
LAT_MOUSE | LIG_SH2_GRB2 | 195 | 198 | Phosphorylation of Y195 in the SH2-binding motif of Linker for activation of T-cells family member 1 (Lat) induces binding to the Growth factor receptor-bound protein 2 (Grb2) protein. | |||
LAT_MOUSE | LIG_SH2_GRB2 | 235 | 238 | Phosphorylation of Y235 in the SH2-binding motif of Linker for activation of T-cells family member 1 (Lat) induces binding to the Growth factor receptor-bound protein 2 (Grb2) protein. | |||
ERBB3_HUMAN | LIG_SH2_GRB2 | 1262 | 1265 | Phosphorylation of Y1262 in the SH2-binding motif of Receptor tyrosine-protein kinase erbB-3 (ERBB3) induces binding to Growth factor receptor-bound protein 2 (GRB2). | |||
Type: Cumulative Subtype: Rheostatic | |||||||
Rheostatic switches gradually alter the affinity of a motif for a single binding partner by addition of multiple PTMs that additively contribute to this modulation. Additional modifications can either strengthen or weaken an interaction. | |||||||
A4_HUMAN | LIG_SH2_GRB2 | 757 | 760 | While phosphorylation of Y757 in the SH2-binding motif of Amyloid beta A4 protein (APP) induces binding to Growth factor receptor-bound protein 2 (GRB2), additional phosphorylation of T743 further increases the strength of the interaction. | |||
Type: Specificity Subtype: Altered binding specificity | |||||||
The balance of the competition for overlapping or adjacent, mutually exclusive interaction interfaces is tipped in favor of one of the interactors by PTM-dependent modulation of the intrinsic affinity of a binding region. Multiple, successive PTMs allow sequential switching of different binding partners in an ordered manner by step-wise alteration of binding specificity. | |||||||
A4_HUMAN | LIG_SH2_GRB2 | 757 | 760 | Phosphorylation of Y757 in APP (Amyloid beta A4 protein (APP)) switches its specificity from PTB domain containing proteins, like Amyloid beta A4 precursor protein-binding family B member 1 (APBB1), which is involved in trafficking and processing of APP, to SH2 domain containing proteins, such as Growth factor receptor-bound protein 2 (GRB2). |