anti human cd81 af488 antibody (R&D Systems)
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Anti Human Cd81 Af488 Antibody, supplied by R&D Systems, used in various techniques. Bioz Stars score: 93/100, based on 3 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/anti+human+cd81+af488+antibody/Human+CD81+Alexa+Fluor%C2%AE+488-conjugated+Antibody/pmc08759128-69-0-6
Average 93 stars, based on 3 article reviews
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1) Product Images from "Polyphosphate expression by cancer cell extracellular vesicles mediates binding of factor XII and contact activation"
Article Title: Polyphosphate expression by cancer cell extracellular vesicles mediates binding of factor XII and contact activation
Journal: Blood Advances
doi: 10.1182/bloodadvances.2021005116
Figure Legend Snippet: Characterization of EV. Particle numbers (A) and relative protein concentrations (B) in the fractions eluted following qEV size-exclusion chromatography. Data are mean ± SEM. (C) Tetraspanin (CD9, CD63, and CD81) content of purified EVs was analyzed in the indicated elution fractions by immunoblotting. (D) Size distribution of pooled fractions 7 to 10 from HDFs (left panel) and L3.6 cells (right panel). (E) Electron microscopy image of EV from HDFs (left panel) and L3.6 cells (right panel).
Techniques Used: Size-exclusion Chromatography, Purification, Western Blot, Electron Microscopy
Figure Legend Snippet: polyP on EV derived from cancer cells mediates ligand binding. (A) The amount of polyP associated with cancer cell–derived EV was estimated by comparison with a standard curve (supplemental Figure 2A). (B) Detection of polyP on L3.6-derived EVs following incubation with buffer (HBS), DNase I and RNase A (D/R), or CIP. polyP of different chain lengths was used to estimate the size of EV-associated polyP. L3.6-derived EVs were preincubated with buffer or E coli PPX, and the binding of PPX-Δ12–AF488 (C), anti-CD81–AF488 (D), and or FXII-AF488 (E) was measured. The number of total EV was determined in scatter mode, and the number of ligand-binding EV was determined in fluorescence mode using a 488-nm excitation laser. The differences in fluorescent particle numbers were compared by estimating the area under each curve (AUC) using GraphPad Prism 8. Bars represent means ± SEM. *** P < .001, 1-way ANOVA with multiple comparisons. L, long; M, medium; S, short.
Techniques Used: Derivative Assay, Ligand Binding Assay, Comparison, Incubation, Binding Assay, Fluorescence
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