Summary

Name TSC1
Full Name Hamartin
Synonyms Tuberous sclerosis 1 protein | KIAA0243, TSC
Primary ID Q92574
Links - -
Type protein
Relations 24
Pathways Insulin Signaling
Function In complex with TSC2, inhibits the nutrient-mediated or growth factor-stimulated phosphorylation of S6K1 and EIF4EBP1 by negatively regulating mTORC1 signaling (PubMed:12271141, PubMed:28215400). Seems not to be required for TSC2 GAP activity towards RHEB (PubMed:15340059). Implicated as a tumor suppressor. Involved in microtubule-mediated protein transport, but this seems to be due to unregulated mTOR signaling (By similarity). Acts as a co-chaperone for HSP90AA1 facilitating HSP90AA1 chaperoning of protein clients such as kinases, TSC2 and glucocorticoid receptor NR3C1 (PubMed:29127155). Increases ATP binding to HSP90AA1 and inhibits HSP90AA1 ATPase activity (PubMed:29127155). Competes with the activating co-chaperone AHSA1 for binding to HSP90AA1, thereby providing a reciprocal regulatory mechanism for chaperoning of client proteins (PubMed:29127155). Recruits TSC2 to HSP90AA1 and stabilizes TSC2 by preventing the interaction between TSC2 and ubiquitin ligase HERC1 (PubMed:16464865, PubMed:29127155).

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Modifications Tables

Relations

Regulator Mechanism target score
+ down-regulates img/direct_inhibition.png phosphorylation TSC1 0.625
Publications: 4 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation TSC1 0.428
Publications: 3 Organism: Homo Sapiens
+ img/unknown.png phosphorylation TSC1 0.507
Publications: 3 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation TSC1 0.507
Publications: 3 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation TSC1 0.466
Publications: 2 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation TSC1 0.405
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding TSC1 0.933
Publications: 1 Organism: Homo Sapiens
Tissue: Brain, Kidney
+ form complex img/form-complex.png binding TSC 0.933
Publications: 1 Organism: Homo Sapiens
Pathways:Insulin Signaling
+ down-regulates activity img/direct_inhibition.png binding RHEB 0.909
Publications: 1 Organism: Homo Sapiens
Pathways:Insulin Signaling
+ down-regulates img/direct_inhibition.png phosphorylation TSC1 0.2
Publications: 1 Organism: Homo Sapiens
Pathways:Insulin Signaling
+ up-regulates quantity img/direct-activation.png transcriptional regulation TSC1 0.465
Publications: 1 Organism: Mus Musculus
Pathways:Insulin Signaling
+ down-regulates activity img/indirect_inhibition.png MTOR 0.696
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation TSC1 0.529
Publications: 1 Organism: Homo Sapiens