Please send any suggestions/comments to: switches@elm.eu.org
| 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 | Type: Specificity Subtype: Competition |
| Protein | Motif | Start | End | Switch description | Information |
Type: Specificity Subtype: Competition | |||||||
| Competitive binding of multiple binding partners to overlapping or adjacent, mutually exclusive interaction interfaces depends on local target protein abundance, which can be regulated by changing the expression level or subcellular localisation of the competitors, or by scaffolding. | |||||||
| CDN1A_HUMAN | DOC_CYCLIN_1 | 19 | 22 | Cyclin-dependent kinase inhibitor 1 (CDKN1A) (p21) and the M-phase inducer phosphatase 1 (CDC25A) bind the same site on Cyclin proteins (e.g. G1/S-specific cyclin-E1 (CCNE1)), making their interactions mutually exclusive. | |||
| MPIP1_HUMAN | DOC_CYCLIN_1 | 11 | 15 | Cyclin-dependent kinase inhibitor 1 (CDKN1A) (p21) and the M-phase inducer phosphatase 1 (CDC25A) bind the same site on Cyclin proteins (e.g. G1/S-specific cyclin-E1 (CCNE1)), making their interactions mutually exclusive. | |||
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. | |||||||
| CCNE1_HUMAN | MOD_GSK3_1 | 392 | 399 | Phosphorylation of G1/S-specific cyclin-E1 (CCNE1) at S399 by Cyclin-dependent kinase 2 (CDK2) primes the protein for subsequent phosphorylation at T395 by Glycogen synthase kinase-3 beta (GSK3B). | |||
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. | |||||||
| CCNE1_HUMAN | MOD_GSK3_1 | 377 | 384 | Phosphorylation of Isoform E-S of G1/S-specific cyclin-E1 (CCNE1) at S384 by CDK2 primes CCNE1 for phosphorylation by Glycogen synthase kinase-3 beta (GSK3B) at T380, which creates a recognition site for F box proteins of the SCF ubiquitin ligase complex (F-box/WD repeat-containing protein 7 (FBXW7)) that target CCNE1 for degradation. | |||
| CCNE1_HUMAN | DEG_SCF_FBW7_1 | 378 | 384 | Phosphorylation of Isoform E-S of G1/S-specific cyclin-E1 (CCNE1) at S384 by CDK2 primes CCNE1 for phosphorylation by Glycogen synthase kinase-3 beta (GSK3B) at T380, which creates a recognition site for F box proteins of the SCF ubiquitin ligase complex (F-box/WD repeat-containing protein 7 (FBXW7)) that target CCNE1 for degradation. | |||
| CCNE1_HUMAN | MOD_GSK3_1 | 392 | 399 | Phosphorylation of G1/S-specific cyclin-E1 (CCNE1) at S399 generates a docking site for Glycogen synthase kinase-3 beta (GSK3B). Subsequent phosphorylation of CCNE1 by Glycogen synthase kinase-3 beta (GSK3B) at T395 switches the specificity of CCNE1 to the F-box/WD repeat-containing protein 7 (FBXW7), which recruits CCNE1 to the SCF ubiquitin ligase complex to mark CCNE1 for degradation. | |||
| CCNE1_HUMAN | DEG_SCF_FBW7_1 | 393 | 399 | Phosphorylation of G1/S-specific cyclin-E1 (CCNE1) at S399 generates a docking site for Glycogen synthase kinase-3 beta (GSK3B). Subsequent phosphorylation of CCNE1 by Glycogen synthase kinase-3 beta (GSK3B) at T395 switches the specificity of CCNE1 to the F-box/WD repeat-containing protein 7 (FBXW7), which recruits CCNE1 to the SCF ubiquitin ligase complex to mark CCNE1 for degradation. | |||