Type: Specificity Subtype: Domain hiding |
A domain can be sterically masked by binding of an effector when there is a large difference in intrinsic affinity of the domain for different binding partners, or a large difference in the local abundance of these partners, thereby precluding further interactions of the domain. Binding of the masking molecule can be PTM-dependent or -independent.
|
BIN1_HUMAN | LIG_SH3_8 | 265 | 268 | An intramolecular interaction of a Bin1 SH3 binding motif, encoded by exon 10, with the Isoform BIN1 of Myc box-dependent-interacting protein 1 (BIN1) SH3 domain prevents binding of dynamin2 to the Bin1 SH3 domain. Binding of PI(4,5)P2 to the overlapping PI(4,5)P2-binding motif encoded by exon 10 relieves the intramolecular auto-inhibitory interaction and allows the Bin1 SH3 domain to interact with the dynamin2 PxxP motif. | details |
DYN2_HUMAN | LIG_SH3_2 | 829 | 834 | An intramolecular interaction of a Bin1 SH3 binding motif, encoded by exon 10, with the Dynamin-2 (DNM2) SH3 domain prevents binding of dynamin2 to the Bin1 SH3 domain. Binding of PI(4,5)P2 to the overlapping PI(4,5)P2 binding motif encoded by exon 10 relieves the intramolecular auto-inhibitory interaction and allows the Bin1 SH3 domain to interact with the dynamin2 PxxP motif | details |
Type: Binary Subtype: Pre‑translational |
Pre-translational mechanisms such as alternative splicing, alternative promoter-usage and/or RNA editing result in inclusion or removal of exons that contain an entire or partial motif.
|
BIN1_HUMAN | LIG_SH3_8 | 265 | 268 | Alternative splicing removes the SH3-binding motif of Isoform BIN1 of Myc box-dependent-interacting protein 1 (BIN1), abrogating binding to the SH3 domain of Isoform BIN1 of Myc box-dependent-interacting protein 1 (BIN1). Splice-specific motifs in Isoform BIN1 of Myc box-dependent-interacting protein 1 (BIN1) engage in an intra-molecular interaction with its own SH3 domain. Auto-inhibition is relieved at the plasma membrane when an overlapping lipid-binding motif outcompetes the SH3-binding motif. This means that the SH3 domain is only available for inter-molecular interactions at the plasma membrane. | details |
BIN1_HUMAN | LIG_PI(4,5)P2 | 258 | 266 | Alternative splicing removes the PI(4,5)P2-binding motif of Isoform BIN1 of Myc box-dependent-interacting protein 1 (BIN1), abrogating binding to 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate. Splice-specific motifs in Isoform BIN1 of Myc box-dependent-interacting protein 1 (BIN1) engage in an intra-molecular interaction with its own SH3 domain. Auto-inhibition is relieved at the plasma membrane when an overlapping lipid-binding motif outcompetes the SH3-binding motif. This means that the SH3 domain is only available for inter-molecular interactions at the plasma membrane. | details |