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: Binary Subtype: Pre‑translational | Type: Cumulative Subtype: Rheostatic |
Type: Specificity Subtype: Altered binding specificity |
Protein | Motif | Start | End | Switch description | Information |
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. | |||||||
MPIP3_HUMAN | LIG_PLK | 129 | 131 | Phosphorylation of T130 in the PLK-docking motif of M-phase inducer phosphatase 3 (CDC25C) by Cyclin-dependent kinase 1 (CDK1)-Cyclin AB subfamily generates a recruitment site for Serine/threonine-protein kinase PLK1 (PLK1), which then phosphorylates M-phase inducer phosphatase 3 (CDC25C). This results in inactivation of the NES of M-phase inducer phosphatase 3 (CDC25C), thereby promoting its nuclear localization. | |||
MPIP2_HUMAN | LIG_PLK | 49 | 51 | Phosphorylation of S50 in the PLK-docking motif of M-phase inducer phosphatase 2 (CDC25B) by Cyclin-dependent kinase 1 (CDK1)-Cyclin AB subfamily generates a recruitment site for Serine/threonine-protein kinase PLK1 (PLK1), which then phosphorylates and activates M-phase inducer phosphatase 2 (CDC25B). | |||
MPIP2_HUMAN | LIG_14-3-3_3 | 320 | 325 | Phosphorylation of S321 in the 14-3-3-binding motif of M-phase inducer phosphatase 2 (CDC25B) by Cyclin-dependent kinase 1 (CDK1) during mitosis abolishes binding of the motif, phosphorylated at S323, to 14-3-3 protein beta/alpha (YWHAB), thereby maintaining active Cdc25B. | |||
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. | |||||||
ODFP2_HUMAN | MOD_CDK_1 | 793 | 799 | Alternative splicing removes the cyclin-dependent kinase (CDK) phosphorylation motif of Isoform Cenexin 1 of Outer dense fiber protein 2 (ODF2), abrogating binding to Cyclin-dependent kinase 1 (CDK1). This phosphorylation is required for the recruitment of Serine/threonine-protein kinase PLK1 (PLK1). The C-terminal extension of Isoform Cenexin 1 of Outer dense fiber protein 2 (ODF2) has the ability to distinctly localise to mother centriole whereas the splice variant (e.g. Isoform Cenexin 1 of Outer dense fiber protein 2 (ODF2)), which does not have this extension, permits ODF2 to associate with sperm tail. | |||
Type: Cumulative Subtype: Rheostatic | |||||||
Rheostatic switches gradually alter the affinity of a motif for a single binding partner by addition of multiple PTMs that additively contribute to this modulation. Additional modifications can either strengthen or weaken an interaction. | |||||||
APC_HUMAN | LIG_SxIP_EBH_1 | 2801 | 2811 | Phosphorylation of S2789 and S2793 adjacent to the EBH-binding motif of Adenomatous polyposis coli protein (APC), by , respectively, gradually reduces the affinity of its interaction with Microtubule-associated protein RP/EB family member 1 (MAPRE1). | |||
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. | |||||||
MK67I_HUMAN | MOD_CDK | 235 | 241 | Phosphorylation of T238 of MKI67 FHA domain-interacting nucleolar phosphoprotein (MKI67IP) by Cyclin-dependent kinase 1 (CDK1) primes for phosphorylation of T234 by Glycogen synthase kinase-3 beta (GSK3B), which primes for phosphorylation of S230 by GSK3B. Triple-phosphorylated hNIFK (MKI67IP) binds strongly to Antigen KI-67 (MKI67). | |||
MK67I_HUMAN | MOD_GSK3_1 | 231 | 238 | Phosphorylation of T238 of MKI67 FHA domain-interacting nucleolar phosphoprotein (MKI67IP) by Cyclin-dependent kinase 1 (CDK1) primes for phosphorylation of T234 by Glycogen synthase kinase-3 beta (GSK3B), which primes for phosphorylation of S230 by GSK3B. Triple-phosphorylated hNIFK (MKI67IP) binds strongly to Antigen KI-67 (MKI67). | |||
MK67I_HUMAN | LIG_FHA_2 | 238 | 244 | Phosphorylation of T238 of MKI67 FHA domain-interacting nucleolar phosphoprotein (MKI67IP) by Cyclin-dependent kinase 1 (CDK1) primes for phosphorylation of T234 by Glycogen synthase kinase-3 beta (GSK3B), which primes for phosphorylation of S230 by GSK3B. Triple-phosphorylated hNIFK (MKI67IP) binds strongly to Antigen KI-67 (MKI67). |