Domain hiding |   Altered binding specificity |   Motif hiding |   Composite binding site formation |
  Uncategorised |   Rheostatic |   Allostery |   Avidity-sensing |
  Physicochemical compatibility |   Pre-translational |   Competition |
Type: Avidity‑sensing Subtype: | Type: Binary Subtype: Physicochemical compatibility | Type: Specificity Subtype: Altered binding specificity |
Protein | Motif | Start | End | Switch description | Information |
Type: Avidity‑sensing Subtype: | |||||||
Multiple low-affinity interactions give rise to high-avidity interactions that have increased binding strength, with more than additive affinity. | |||||||
CD3Z_HUMAN | LIG_TYR_ITAM | 69 | 86 | Phosphorylation of Y72 and Y83 in the ITAM motif of T-cell surface glycoprotein CD3 zeta chain (CD247) induces high-avidity binding to the tandem SH2 domains of Tyrosine-protein kinase ZAP-70 (ZAP70). | |||
CD3Z_HUMAN | LIG_TYR_ITAM | 69 | 86 | Phosphorylation of Y72 and Y83 in the ITAM motif of T-cell surface glycoprotein CD3 zeta chain (CD247) induces high-avidity binding to the tandem SH2 domains of Tyrosine-protein kinase ZAP-70 (ZAP70). | |||
CD3Z_HUMAN | LIG_TYR_ITAM | 108 | 126 | Phosphorylation of Y111 and Y123 in the ITAM motif of T-cell surface glycoprotein CD3 zeta chain (CD247) induces high-avidity binding to the tandem SH2 domains of Tyrosine-protein kinase ZAP-70 (ZAP70). | |||
CD3Z_HUMAN | LIG_TYR_ITAM | 108 | 126 | Phosphorylation of Y111 and Y123 in the ITAM motif of T-cell surface glycoprotein CD3 zeta chain (CD247) induces high-avidity binding to the tandem SH2 domains of Tyrosine-protein kinase ZAP-70 (ZAP70). | |||
CD3Z_HUMAN | LIG_TYR_ITAM | 139 | 156 | Phosphorylation of Y142 and Y153 in the ITAM motif of T-cell surface glycoprotein CD3 zeta chain (CD247) induces high-avidity binding to the tandem SH2 domains of Tyrosine-protein kinase ZAP-70 (ZAP70). | |||
CD3Z_HUMAN | LIG_TYR_ITAM | 139 | 156 | Phosphorylation of Y142 and Y153 in the ITAM motif of T-cell surface glycoprotein CD3 zeta chain (CD247) induces high-avidity binding to the tandem SH2 domains of Tyrosine-protein kinase ZAP-70 (ZAP70). | |||
CD3G_HUMAN | LIG_TYR_ITAM | 157 | 174 | Phosphorylation of Y160 and Y171 in the ITAM motif of T-cell surface glycoprotein CD3 gamma chain (CD3G) induces high-avidity binding to the tandem SH2 domains of Tyrosine-protein kinase ZAP-70 (ZAP70). | |||
CD3G_HUMAN | LIG_TYR_ITAM | 157 | 174 | Phosphorylation of Y160 and Y171 in the ITAM motif of T-cell surface glycoprotein CD3 gamma chain (CD3G) induces high-avidity binding to the tandem SH2 domains of Tyrosine-protein kinase ZAP-70 (ZAP70). | |||
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. | |||||||
ZAP70_HUMAN | LIG_SH2_IIC | 284 | 300 | Phosphorylation of Y292 in the SH2-binding motif of Tyrosine-protein kinase ZAP-70 (ZAP70) induces binding to the E3 ubiquitin-protein ligase CBL-B (CBLB) 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. | |||||||
CD3E_HUMAN | LIG_TYR_ITAM | 185 | 202 | Phosphorylation of T-cell surface glycoprotein CD3 epsilon chain (CD3E) by Lck (Tyrosine-protein kinase Lck (LCK)) during T cell activation switches the specificity of CD3E from SH3 domain containing proteins like Epidermal growth factor receptor kinase substrate 8-like protein 1 (EPS8L1) to SH2 domain containing proteins like Tyrosine-protein kinase ZAP-70 (ZAP70). |