axio observer z1 inverted widefield microscope (Carl Zeiss)
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Axio Observer Z1 Inverted Widefield Microscope, supplied by Carl Zeiss, used in various techniques. Bioz Stars score: 99/100, based on 4862 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Average 99 stars, based on 4862 article reviews
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1) Product Images from "MMV687794 blocks Plasmodium falciparum invasion of red blood cells by targeting a Surface-associated Lipid-Interacting Rhoptry Protein, Pf SLIRP"
Article Title: MMV687794 blocks Plasmodium falciparum invasion of red blood cells by targeting a Surface-associated Lipid-Interacting Rhoptry Protein, Pf SLIRP
Journal: bioRxiv
doi: 10.64898/2026.02.24.707847
Figure Legend Snippet: A 2D widefield immunofluorescence assay (IFA) images of C-WT parasites showing HA-tagged Pf SLIRP in schizonts at the periphery of rhoptry bulbs. EXP2 marks the parasitophorous vacuole membrane, RhopH3 marks rhoptry bulbs, and DNA is stained with DAPI. Super-Resolution Radial Fluctuations (SRRF) processing was applied to enhance spatial resolution. The white box in the merged schizont image indicate zoomed area to the right. B Confocal maximum intensity projections of expanded C-WT schizonts illustrating wild-type Pf SLIRP–HA localisation at the rhoptry membrane. RAP1 marks rhoptry bulbs, GAP45 labels the merozoite periphery, and SYTOX™ blue stains DNA. The white boxes in the merged image indicate zoomed areas at the bottom. B = rhoptry bulb, N = rhoptry neck. C Confocal maximum intensity projections of rhoptries from expanded C-C36W schizonts (Figure S11) illustrating C36W Pf SLIRP-HA localisation at the rhoptry membrane. D Western blot of parasite proteins from ring (R), early trophozoite (ET), late trophozoite (LT), and schizont stages, probed with anti-HA to detect Pf SLIRP. HSP70-1 serves as a loading control. Densitometry values were normalised to HSP70-1, a constitutively-expressed housekeeping protein. Pf SLIRP expression peaks at the schizont stage for C-WT, and the ring stage for C-C36W. Western blot is representative of three biological replicates (refer to Figure S12 for all replicates). Error bars represent the standard deviation of the mean of three biological replicates, each with two technical replicates. Statistical analyses were performed with GraphPad Prism 10, with Welch’s t -test between the late trophozoite and schizont stages within both parasite lines, and between the same stages across both parasite lines. ** p < 0.01, **** p < 0.0001. No bar indicates not significant. E Sequential lysis of C-WT and C-C36W schizont saponin pellets by freeze–thaw and sodium carbonate extraction. Western blot shows Pf SLIRP is found in the carbonate soluble (Na2CO3 Sup.) and insoluble (Na2CO3 Pel.) fractions but not in the PBS soluble fraction (PBS Sup.). Control proteins included soluble protein Pf HSP70-1, peripheral membrane protein Pf HSP101, and integral membrane protein Pf EXP2. Mouse anti-HA was used for Pf SLIRP detection; rabbit antibodies were used to detect the control proteins. * denotes cross-reactive bands produced by rabbit HSP70-1 antibody (refer to Figure S14 for all cross-reactive bands produced by the antibody).
Techniques Used: Immunofluorescence, Membrane, Staining, Western Blot, Control, Expressing, Standard Deviation, Lysis, Extraction, Produced
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