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| 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_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_Phospho_1 - This phosphorylation-dependent motif binds to Shc-like and IRS-like PTB domains. The pTyr is positioned within a highly basic-charged anchoring pocket. A hydrophobic residue -5 (compared to pY) increases the affinity of the interaction. | |||||||
| EGFR_HUMAN | 1104 | 1110 | Binary | Physicochemical compatibility | Phosphorylation of Y1110 in the PTB-binding motif of Epidermal growth factor receptor (EGFR) induces binding to the Docking protein 1 (DOK1) protein. | ||
| IL4RA_HUMAN | 491 | 497 | Binary | Physicochemical compatibility | Phosphorylation of Y497 in the PTB-binding motif of Interleukin-4 receptor subunit alpha (IL4R) induces binding to the Insulin receptor substrate 1 (IRS1) protein. | ||
| ITB3_HUMAN | 767 | 773 | Binary | Physicochemical compatibility | Phosphorylation of Y773 in the PTB-binding motif of Integrin beta-3 (ITGB3) induces binding to the Docking protein 1 (DOK1) protein. | ||
| MUSK_MOUSE | 547 | 553 | Binary | Physicochemical compatibility | Phosphorylation of Y553 in the PTB-binding motif of Muscle, skeletal receptor tyrosine-protein kinase (Musk) induces binding to the Protein Dok-7 (Dok7) protein. | ||
| RET_MOUSE | 1057 | 1063 | Binary | Physicochemical compatibility | Phosphorylation of Y1063 in the PTB-binding motif of Proto-oncogene tyrosine-protein kinase receptor Ret (Ret) induces binding to the Docking protein 1 (Dok1) protein. | ||
| ITB3_HUMAN | 767 | 773 | 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. | ||
| PI51C_MOUSE | 645 | 648 | Binary | Pre‑translational | Alternative splicing removes the PTB domain-binding motif of Phosphatidylinositol 4-phosphate 5-kinase type-1 gamma (Pip5k1c), abrogating binding to Talin-1 (Tln1). Integrin receptors, Tln1 and Isoform PIPKIgamma661 of Phosphatidylinositol 4-phosphate 5-kinase type-1 gamma (Pip5k1c) (PIPKIgamma661) are recruited to focal adhesions, inducing synthesis of PI(4,5)P2. The regulated and localised generation of PI(4,5)P2 facilitates the assembly and/or disassembly of focal adhesions. | ||
| PI51C_MOUSE | 645 | 648 | Binary | Physicochemical compatibility | Phosphorylation of S645 in the PTB-binding motif of Phosphatidylinositol 4-phosphate 5-kinase type-1 gamma (Pip5k1c) by Cyclin-dependent kinase 5 (Cdk5) inhibits its interaction with Talin-1 (Tln1). | ||
| PI51C_MOUSE | 645 | 648 | Binary | Physicochemical compatibility | Phosphorylation of Y644 in Phosphatidylinositol 4-phosphate 5-kinase type-1 gamma (Pip5k1c) promotes its association with Talin-1 (Tln1). | ||
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). | ||
| 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-2 (TLN2). The alteration of residue 788 from G to Q and alteration of residue 786 from A to P increases the binding affinity from 652 micromolar in the canonical Isoform Beta-1A of Integrin beta-1 (ITGB1) to 36 micromolar in Isoform Beta-1D of Integrin beta-1 (ITGB1). | ||