Domain hiding |   Altered binding specificity |   Motif hiding |   Composite binding site formation |
  Uncategorised |   Rheostatic |   Allostery |   Avidity-sensing |
  Physicochemical compatibility |   Pre-translational |   Competition |
Protein | Start | End | Switch Type | Switch Subtype | Switch Description | Information |
LIG_Filamin - | |||||||
ITB7_HUMAN | 776 | 787 | Specificity | Competition | The integrin regulator Talin-1 (TLN1) and the actin-crosslinking Filamins Filamin-A (FLNA) use overlapping binding sites on the cytoplasmic tails of beta integrin subunits Integrin beta-7 (ITGB7), which makes their interaction with beta integrin mutually exclusive. | ||
LIG_PTB_Apo_2 - These phosphorylation-independent motifs bind to Dab-like PTB domains. Binding is not driven by contacts at the 0 or FY position, but instead is dependent upon the large number of hydrophobic and hydrogen bond contacts between motif and domain. | |||||||
ITB3_HUMAN | 767 | 774 | Specificity | Altered binding specificity | 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. | ||
LIG_PTB_Talin - | |||||||
PI51C_HUMAN | 650 | 653 | Binary | Physicochemical compatibility | Phosphorylation of S650 in the PTB-binding motif of Phosphatidylinositol-4-phosphate 5-kinase type-1 gamma (PIP5K1C) blocks its interaction with Talin-1 (TLN1). Phosphorylation of Y649 by Src kinase enhances the interaction, possibly indirectly by inhibiting S650 phosphorylation. | ||
LIG_Talin - | |||||||
ITB7_HUMAN | 770 | 779 | Specificity | Competition | The integrin regulator Talin-1 (TLN1) and the actin-crosslinking Filamins Filamin-A (FLNA) use overlapping binding sites on the cytoplasmic tails of beta integrin subunits Integrin beta-7 (ITGB7), which makes their interaction with beta integrin mutually exclusive. | ||
ITB1_HUMAN | 775 | 785 | Binary | Pre‑translational | Alternative splicing alters the flanking regions of the PTB-binding motif of Isoform Beta-1D of Integrin beta-1 (ITGB1), inducing higher affinity binding to Talin-1 (TLN1). Alteration of residue 788 from G to Q and alteration of residue 786 from A to P increases the binding affinity from 491 micromolar in the canonical Isoform Beta-1A of Integrin beta-1 (ITGB1) to 95 micromolar in Isoform Beta-1D of Integrin beta-1 (ITGB1). |