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.
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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). | details |
PTHR_HUMAN | TRG_NLS_Bipartite_1 | 124 | 144 | Phosphorylation of T121 adjacent to the NLS of Parathyroid hormone-related protein (PTHLH) by Cyclin-dependent kinase 2 (CDK2) disrupts the interaction with Importin subunit beta-1 (KPNB1) and down-regulates nuclear import. | details |
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.
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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. | details |
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. | details |
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. | details |
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. | details |
Type: Pre‑assembly Subtype: Composite binding site formation |
The formation of a complex results in the generation of a continuous motif-binding site that spans more than one component of this complex. Neither complex subunit on its own contains a functional binding domain for the motif, and interaction of the motif only occurs in the context of the active, fully assembled complex.
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CDN1B_HUMAN | MOD_CDK_1 | 184 | 190 | Binding of Cyclin-dependent kinase inhibitor 1B (CDKN1B) (p27) to the SCF-Skp2 ubiquitin ligase complex requires phosphorylation of p27 (CDKN1B) at T187, and association of the F-box protein S-phase kinase-associated protein 2 (SKP2) with the regulatory Cyclin-dependent kinases regulatory subunit 1 (CKS1B). SKP2 and CKS1B together generate a composite binding site for p27 (CDKN1B). While some residues, including the phosphorylated T187, bind to CKS1B and others to SKP2, the E185 makes contact with residues of both CKS1B and SKP2. | details |
CDN1B_HUMAN | DEG_SCF_SKP2-CKS1_1 | 183 | 190 | Binding of Cyclin-dependent kinase inhibitor 1B (CDKN1B) (p27) to the SCF-Skp2 ubiquitin ligase complex requires phosphorylation of p27 (CDKN1B) at T187, and association of the F-box protein S-phase kinase-associated protein 2 (SKP2) with the regulatory Cyclin-dependent kinases regulatory subunit 1 (CKS1B). SKP2 and CKS1B together generate a composite binding site for p27 (CDKN1B). While some residues, including the phosphorylated T187, bind to CKS1B and others to SKP2, the E185 makes contact with residues of both CKS1B and SKP2. | details |
CDN1C_HUMAN | MOD_CDK_1 | 307 | 313 | Binding of Cyclin-dependent kinase inhibitor 1C (CDKN1C) (p57) to the SCF-Skp2 ubiquitin ligase complex requires phosphorylation of p57 (CDKN1C) at T310, and association of the F-box protein S-phase kinase-associated protein 2 (SKP2) with the regulatory Cyclin-dependent kinases regulatory subunit 1 (CKS1B). SKP2 and CKS1B together generate a composite binding site for p57 (CDKN1C). | details |
CDN1C_HUMAN | DEG_SCF_SKP2-CKS1_1 | 306 | 313 | Binding of Cyclin-dependent kinase inhibitor 1C (CDKN1C) (p57) to the SCF-Skp2 ubiquitin ligase complex requires phosphorylation of p57 (CDKN1C) at T310, and association of the F-box protein S-phase kinase-associated protein 2 (SKP2) with the regulatory Cyclin-dependent kinases regulatory subunit 1 (CKS1B). SKP2 and CKS1B together generate a composite binding site for p57 (CDKN1C). | details |