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: 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. | |||||||
EGFR_HUMAN | LIG_PTB_Phospho_1 | 1104 | 1110 | Phosphorylation of Y1110 in the PTB-binding motif of Epidermal growth factor receptor (EGFR) induces binding to the Docking protein 1 (DOK1) protein. | |||
ITB3_HUMAN | LIG_PTB_Phospho_1 | 767 | 773 | Phosphorylation of Y773 in the PTB-binding motif of Integrin beta-3 (ITGB3) induces binding to the Docking protein 1 (DOK1) protein. | |||
DOK1_HUMAN | LIG_SH2_IIB | 203 | 206 | Phosphorylation of Y203 in the SH2-binding motif of Docking protein 1 (DOK1) induces binding to the Phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase 1 (INPP5D) protein. | |||
DOK1_HUMAN | LIG_SH2_IB | 447 | 454 | Phosphorylation of Y449 in the SH2-binding motif of Docking protein 1 (DOK1) induces binding to the SH2 domain-containing protein 1A (SH2D1A) protein. | |||
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. | |||||||
ITB3_HUMAN | LIG_PTB_Phospho_1 | 767 | 773 | Phosphorylation of Y773 in Integrin beta-3 (ITGB3) switches the specificity of ITGB3 from Talin-1 (TLN1) to Docking protein 1 (DOK1), with a 2-fold decrease of the affinity for TLN1 and close to a 400-fold increase of the affinity for DOK1. This switch results in negative regulation of integrin activation. |