{"product_id":"recombinant-human-charged-multivesicular-body-protein-1b-chmp1b-bhp10503644","title":"Recombinant Human Charged multivesicular body protein 1b (CHMP1B)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eRecombinant Human Charged multivesicular body protein 1b (CHMP1B) is a recombinant protein reagent for research-use applications such as assay development, binding studies, and mechanistic experiments. It corresponds to \u003cstrong\u003eCHMP1B\u003c\/strong\u003e (Homo sapiens (Human)) and is intended for RUO workflows where a defined protein standard or functional input is needed.\u003c\/p\u003e\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpression system:\u003c\/strong\u003e E.coli (expression context can influence folding and PTMs).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpression region:\u003c\/strong\u003e 1-199aa (region choice can affect activity and binding readouts).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConjugate(s)\/tag:\u003c\/strong\u003e N-terminal GST-tagged (can support detection or purification depending on format).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 49.1 kDa (useful for interpreting gel migration and size-exclusion profiles).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen comparing results across assays, consider that expression system and expressed region can alter glycosylation, disulfide formation, and oligomerization state, which may shift apparent potency or binding behavior in vitro.\u003c\/p\u003e\u003ch2\u003eBiological background\u003c\/h2\u003e\u003cp\u003eProbable peripherally associated component of the endosomal sorting required for transport complex III (ESCRT-III) which is involved in multivesicular bodies (MVBs) formation and sorting of endosomal cargo proteins into MVBs. MVBs contain intraluminal vesicles (ILVs) that are generated by invagination and scission from the limiting membrane of the endosome and mostly are delivered to lysosomes enabling degradation of membrane proteins, such as stimulated growth factor receptors, lysosomal enzymes and lipids. The MVB pathway appears to require the sequential function of ESCRT-O, -I,-II and -III complexes. ESCRT-III proteins mostly dissociate from the invaginating membrane before the ILV is released. The ESCRT machinery also functions in topologically equivalent membrane fission events, such as the terminal stages of cytokinesis and the budding of enveloped viruses (HIV-1 and other lentiviruses). ESCRT-III proteins are believed to mediate the necessary vesicle extrusion and\/or membrane fission activities, possibly in conjunction with the AAA ATPase VPS4. Involved in cytokinesis. Involved in recruiting VPS4A and\/or VPS4B and SPAST to the midbody of dividing cells. Involved in HIV-1 p6- and p9-dependent virus release.\u003c\/p\u003e\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReagent standardization: using recombinant proteins as reference materials for quantitative calibration and cross-study comparability.\u003c\/li\u003e\n\u003cli\u003eInteraction-focused studies: mapping binding partners, affinity changes, and structure–function relationships across variants or domains.\u003c\/li\u003e\n\u003cli\u003eMulti-omic readouts: combining recombinant perturbations with transcript, protein, and functional endpoints to connect mechanism to phenotype.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon research applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAssay development and validation: use as a defined input or standard where protein identity is required.\u003c\/li\u003e\n\u003cli\u003eBinding studies: evaluate interaction strength and specificity using plate-based or biophysical formats.\u003c\/li\u003e\n\u003cli\u003eCell-response profiling: add protein to cultured cells and interpret downstream marker changes with appropriate controls.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eInterpretation is most robust when signal changes are evaluated relative to matched controls (buffer-only, unrelated protein controls, or pathway controls) and when readouts are compared across dose and time.\u003c\/p\u003e\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIsoforms and PTMs can influence binding and activity; ensure the expressed region and expression system match your experimental needs.\u003c\/li\u003e\n\u003cli\u003eSpecies differences may affect receptor binding or antibody recognition; confirm species\/source alignment with your model.\u003c\/li\u003e\n\u003cli\u003eUse concept-level controls such as negative controls (no protein), matrix controls, or orthogonal readouts to support conclusions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- Sources (internal): - UniProt keyword search: https:\/\/www.uniprot.org\/uniprotkb?query=CHMP1B - NCBI Gene search: https:\/\/www.ncbi.nlm.nih.gov\/gene\/?term=CHMP1B - PubMed search: https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=CHMP1B - Ensembl search: https:\/\/www.ensembl.org\/Multi\/Search\/Results?q=CHMP1B - Reactome Pathway Browser: https:\/\/reactome.org\/content\/query?q=CHMP1B --\u003e","brand":"CUSABIO TECHNOLOGY LLC","offers":[{"title":"1 mg","offer_id":53053031842157,"sku":"CSB-EP748726HU-1MG","price":1812.0,"currency_code":"USD","in_stock":true},{"title":"100 ug","offer_id":53053167501677,"sku":"CSB-EP748726HU-100UG","price":419.0,"currency_code":"USD","in_stock":true},{"title":"20 ug","offer_id":53053167534445,"sku":"CSB-EP748726HU-20UG","price":224.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/CSB-EP748726HU-SDS.jpg?v=1772172826","url":"https:\/\/www.ebiohippo.com\/products\/recombinant-human-charged-multivesicular-body-protein-1b-chmp1b-bhp10503644","provider":"BioHippo","version":"1.0","type":"link"}