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Group by :Switch typeMotif classProteinEnzymePathway            Group Index    Colouring Info              Filtered: PFAM:PF00134 (6 hits) x
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  Domain hiding  Altered binding specificity  Motif hiding  Composite binding site formation
  Uncategorised  Rheostatic  Allostery  Avidity-sensing
  Physicochemical compatibility  Pre-translational  Competition

x  Index
Type: Binary Subtype: Physicochemical compatibilityType: Specificity Subtype: CompetitionType: Specificity Subtype: Domain hiding


ProteinMotifStartEndSwitch descriptionInformation

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.
CDN1B_HUMANDOC_CYCLIN_13033Binding of the CDK-cyclin inhibitor p27 (Cyclin-dependent kinase inhibitor 1B (CDKN1B)) blocks the substrate recruitment site on Cyclin-A2 (CCNA2).
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CDC6_HUMANDOC_CYCLIN_19498Binding of the CDK-cyclin inhibitor p27 (Cyclin-dependent kinase inhibitor 1B (CDKN1B)) blocks the substrate recruitment site on Cyclin-A2 (CCNA2).
details

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_HUMANDOC_CYCLIN_11922Cyclin-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.
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MPIP1_HUMANDOC_CYCLIN_11115Cyclin-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.
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RB_HUMANDOC_CYCLIN_1873877The docking sites for PP1 (e.g. Serine/threonine-protein phosphatase PP1-alpha catalytic subunit (PPP1CA)) and Cdk-Cyclins (e.g. Cyclin-A2 (CCNA2)) on Retinoblastoma-associated protein (RB1) overlap, which makes their binding to RB1 mutually exclusive. Hypophosphorylated RB1 blocks E2F-dependent transcription, while hyperphosphorylation inactivates RB1 as a repressor, thereby promoting cell cycle progression.
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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.
AKA12_MOUSEDOC_CYCLIN_1501504Phosphorylation of S507 adjacent to the cyclin-binding motif of A-kinase anchor protein 12 (Akap12) by PKC subfamily blocks binding to the G1/S-specific cyclin-D1 (Ccnd1). As a result, the function of A-kinase anchor protein 12 (Akap12) as a scaffold is inhibited and G1/S-specific cyclin-D1 (Ccnd1) is translocated to the nucleus where it regulates progression of the cell cycle from G1 to S phase.
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