{"product_id":"recombinant-human-hamartin-tsc1-partial-bhp10509881","title":"Recombinant Human Hamartin (TSC1), partial","description":"\u003ch2\u003eOverview\u003c\/h2\u003e \u003cp\u003eRecombinant Human Hamartin (TSC1), partial is a recombinant protein reagent derived from Homo sapiens (Human) and produced in E.coli. It is commonly used to support Cancer research by enabling binding assays, assay development and protein–protein interaction studies in controlled in vitro settings.\u003c\/p\u003e \u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExpressed region:\u003c\/strong\u003e 690-993aa. Region selection can focus on functional domains, improve solubility, or isolate interaction surfaces for targeted studies.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExpression system:\u003c\/strong\u003e E.coli. Expression host can influence folding and the presence\/absence of post-translational modifications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTag \/ fusion:\u003c\/strong\u003e N-terminal 10xHis-tagged. Tags can support purification and detection; evaluate potential tag effects when studying sensitive interactions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolecular weight (reported):\u003c\/strong\u003e 42.3 kDa. Apparent size may vary with tags, processing, and gel conditions.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eWhen comparing results across batches or platforms, interpret signals in the context of construct design (region, tags) and expression host, especially for modification-dependent interactions.\u003c\/p\u003e \u003ch2\u003eBiological background\u003c\/h2\u003e \u003cp\u003eThe gene commonly associated with this target is \u003cstrong\u003eTSC1\u003c\/strong\u003e. TSC1 refers to a protein target that is studied across multiple biological contexts; annotations and nomenclature can vary by species and isoform. This product corresponds to the Homo sapiens (Human) sequence context, which can be important when comparing homologs or orthologs across model systems. For curated functional annotations, domains, and sequence features, consult primary databases (e.g., UniProt\/NCBI) and the recent literature for the specific organism and isoform.\u003c\/p\u003e \u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\u003cul\u003e \u003cli\u003eMapping pathway dependencies and signaling networks that drive tumor growth and drug resistance.\u003c\/li\u003e \u003cli\u003eDeveloping and benchmarking biomarker assays (e.g., immunoassays or binding reagents) for candidate targets.\u003c\/li\u003e \u003cli\u003eCharacterizing protein variants, domains, or interaction partners relevant to targeted therapeutics and precision oncology.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eRelevance:\u003c\/strong\u003e In complex with TSC2, inhibits the nutrient-mediated or growth factor-stimulated phosphorylation of S6K1 and EIF4EBP1 by negatively regulating mTORC1 signaling. Seems not to be required for TSC2 GAP activity towards RHEB. Implicated as a tumor suppressor. Involved in microtubule-mediated protein transport, but this seems to be due to unregulated mTOR signaling. Acts as a co-chaperone for HSP90AA1 facilitating HSP90AA1 chaperoning of protein clients such as kinases, TSC2 and glucocorticoid receptor NR3C1. Increases ATP binding to HSP90AA1 and inhibits HSP90AA1 ATPase activity. Competes with the activating co-chaperone AHSA1 for binding to HSP90AA1, thereby providing a reciprocal regulatory mechanism for chaperoning of client proteins. Recruits TSC2 to HSP90AA1 and stabilizes TSC2 by preventing the interaction between TSC2 and ubiquitin ligase HERC1.\u003c\/p\u003e \u003ch2\u003eCommon research applications\u003c\/h2\u003e\u003cul\u003e \u003cli\u003eAssay and standard development for immunoassays or binding-based detection methods.\u003c\/li\u003e \u003cli\u003eProtein–protein interaction studies (e.g., receptor–ligand or complex assembly) using purified components.\u003c\/li\u003e \u003cli\u003eStructure–function analysis, including domain mapping or evaluation of sequence variants.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eIn quantitative assay development, changes in binding or activity readouts are typically interpreted relative to appropriate negative\/positive controls and, where possible, orthogonal assay formats that support the same conclusion.\u003c\/p\u003e \u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\u003cul\u003e \u003cli\u003eRecombinant constructs may represent a defined region (domain) rather than the full-length protein; interpret results in the context of the expressed region.\u003c\/li\u003e \u003cli\u003eTag or fusion elements can aid purification and detection but may influence binding surfaces or oligomerization; consider tag controls when relevant.\u003c\/li\u003e \u003cli\u003eSpecies and isoform differences can affect interaction partners and post-translational modifications; align experimental controls to the intended biological context.\u003c\/li\u003e \u003cli\u003eE. coli expression can limit eukaryotic post-translational modifications; for modification-dependent biology, interpret results accordingly.\u003c\/li\u003e \u003c\/ul\u003e \u003c!-- Sources (internal): - UniProtKB entry for Q92574 — UniProt — https:\/\/www.uniprot.org\/uniprotkb\/Q92574\/entry - NCBI Gene search (TSC1) — NCBI — https:\/\/www.ncbi.nlm.nih.gov\/gene\/?term=TSC1 - PubMed search (TSC1) — NCBI — https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=TSC1 - RCSB PDB search (TSC1) — RCSB PDB — https:\/\/www.rcsb.org\/search?query=TSC1 - Reactome Pathway Browser — Reactome — https:\/\/reactome.org\/ --\u003e","brand":"CUSABIO TECHNOLOGY LLC","offers":[{"title":"1 mg","offer_id":53065302770029,"sku":"CSB-EP849764HU-1MG","price":2466.0,"currency_code":"USD","in_stock":true},{"title":"100 ug","offer_id":53065457172845,"sku":"CSB-EP849764HU-100UG","price":578.0,"currency_code":"USD","in_stock":true},{"title":"20 ug","offer_id":53065457205613,"sku":"CSB-EP849764HU-20UG","price":306.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/CSB-EP849764HU-SDS.jpg?v=1772476522","url":"https:\/\/www.ebiohippo.com\/products\/recombinant-human-hamartin-tsc1-partial-bhp10509881","provider":"BioHippo","version":"1.0","type":"link"}