{"product_id":"human-rspo1-r-spondin-1-protein-his-sumo-tag-animal-free-bhp13700235","title":"Human RSPO1\/R-spondin 1 Protein, His-SUMO tag (Animal-Free)","description":"\u003ch2\u003eBackground\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eRSPO1\/R-spondin 1\u003c\/strong\u003e is supplied as a recombinant protein reagent for \u003cstrong\u003eresearch use only\u003c\/strong\u003e. In RUO settings, recombinant proteins provide defined inputs for biochemical assays, interaction mapping, and assay development where control over protein identity and concentration supports reproducibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAlso known as:\u003c\/strong\u003e RSPO1, Roof plate-specific spondin-1; RSPO1, Roof plate-specific spondin-1，R-spondin 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecies origin:\u003c\/strong\u003e Human.\u003c\/p\u003e\u003cp\u003eR-spondin 1 (RSPO1, Roof plate-specific Spondin 1) is a cysteine-rich secreted glycoprotein that belongs to the R-Spondin family. Structurally, R-spondin 1 harbors an N-terminal signal peptide, two cysteine-rich furin-like (FU1-FU2) domains, a thrombospondin (TSP) domain, and a basic amino acid-rich (BR) C-terminal domain. R-spondin 1 acts as a ligand for the leucine-rich repeat-containing G-protein coupled receptor (LGR) family (LGR4\/5\/6), subsequent clearing negative regulators ZNRF3\/RNF43 from the membrane, leading to the availability of Wnt receptor and activating Wnt\/β-catenin signaling. The signal cascade is essential for regulating stem cell proliferation, embryonic development, and tissue homeostasis.\u003c\/p\u003e\u003cp\u003eEndotoxin :\u0026lt; 1 EU per 1 μg of the protein as determined by the LAL method.\u003c\/p\u003e\u003ch2\u003eBiological significance and function\u003c\/h2\u003e\u003cp\u003eFunctionally, \u003cstrong\u003eRSPO1\/R-spondin 1\u003c\/strong\u003e is connected to ubiquitin\/SUMO-dependent regulation of protein stability, localization, and signaling duration. These modification pathways act as reversible molecular switches that help tune pathway outputs during stress, cell-cycle control, and quality-control processes. This target is frequently investigated in research themes such as \u003cstrong\u003eMolecular \u0026amp; Cellular Biology\u003c\/strong\u003e.\u003c\/p\u003e\u003ch2\u003eMolecular characteristics\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMolecular characteristics:\u003c\/strong\u003e Protein domains, oligomeric state, and modification-sensitive surfaces can influence binding behavior and functional readouts in vitro. Where relevant, isoforms and PTMs may alter activity, stability, or interaction specificity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource species:\u003c\/strong\u003e Human\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 46.8 kDa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtein length:\u003c\/strong\u003e The recombinant Human RSPO1\/R-spondin 1 consists of 243 amino acids and predicts a molecular mass of 46.8 kDa.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpression region:\u003c\/strong\u003e Amino acid sequence derived from Human RSPO1\/R-spondin 1 (Ser21-Ala263) (Q2MKA7) was expressed with His-SUMO tag at the N-terminus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e \u0026gt; 95 % as determined by SDS-PAGE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBiological activity:\u003c\/strong\u003e R-Spondin-1 enhances BMP-2-mediated differentiation of MC3T3-E1 cells. The ED₅₀ for this effect is 1-3 μg\/mL.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePost-translational considerations:\u003c\/strong\u003e Mammalian expression can support native-like folding, disulfide bond formation, and glycosylation—features that are often important for secreted proteins, receptors, and adhesion molecules. For ubiquitin\/SUMO pathway enzymes, catalytic activity often depends on correct folding and active-site integrity rather than glycosylation.\u003c\/p\u003e\u003ch2\u003eExpression and purification strategy\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eExpression system:\u003c\/strong\u003e HEK 293. Expression system selection can influence folding state and PTM profile, which may affect binding or activity for PTM-sensitive targets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTagging:\u003c\/strong\u003e His-SUMO tag tags are commonly used to streamline purification and enable capture\/immobilization in interaction assays. Tag presence or removal can influence some binding measurements depending on assay design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFormulation:\u003c\/strong\u003e Lyophilized from sterile PBS，pH 7.4.. Formulation and buffer composition can influence stability, aggregation propensity, and assay background in downstream biochemical experiments.\u003c\/p\u003e\u003ch2\u003eResearch interpretation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eResearch interpretation:\u003c\/strong\u003e Ubiquitin\/SUMO pathway measurements can reflect changes in protein turnover, signaling dwell time, and stress-adaptation programs. Mechanistic interpretation is often strengthened by pairing modification-state readouts with measurements of substrate abundance, localization, and interaction partners.\u003c\/p\u003e","brand":"Abbkine Scientific Co., Ltd.","offers":[{"title":"5 ug","offer_id":52997752258925,"sku":"PRP1122-5UG","price":69.0,"currency_code":"USD","in_stock":true},{"title":"20 ug","offer_id":52997752291693,"sku":"PRP1122-20UG","price":189.0,"currency_code":"USD","in_stock":true},{"title":"100 ug","offer_id":52997752324461,"sku":"PRP1122-100UG","price":549.0,"currency_code":"USD","in_stock":true},{"title":"1 mg","offer_id":52997752357229,"sku":"PRP1122-1MG","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/PRP1122.png?v=1770191225","url":"https:\/\/www.ebiohippo.com\/products\/human-rspo1-r-spondin-1-protein-his-sumo-tag-animal-free-bhp13700235","provider":"BioHippo","version":"1.0","type":"link"}