Human Plexin B1 Antibody Summary
Accession # O43157
Applications
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Scientific Data
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Detection of Plexin B1 in Jurkat Human Cell Line by Flow Cytometry. Jurkat human acute T cell leukemia cell line was stained with Mouse Anti-Human Plexin B1 Monoclonal Antibody (Catalog # MAB37491, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by Phycoerythrin-conjugated Anti-Mouse IgG F(ab')2Secondary Antibody (Catalog # F0102B).
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Detection of Plexin B1 by Flow Cytometry SEMA4D triggers receptor-mediated astrocyte reactivity, including changes in astrocyte morphology, expression of key transporters for glutamate recycling and energy metabolism and impairs astrocyte function of glucose uptake. a Primary human astrocyte cultures were stained for PLXN receptors (blue), compared to isotype control antibodies (red). Antibody blocking effect was determined by incubation with rSEMA4D or control protein, in presence/absence of anti-SEMA4D antibody/VX15 (human IgG4) or isotype-matched control antibodies for 48 h. Cultures were stained for b EAAT-2, and c GLUT-1 and MCT-4 transporters. d In a separate experiment, blocking of receptors was assessed using anti-PLXNB1 (mouse IgG1) and/or anti-PLXNB2 (mouse IgG2a) or isotype-matched control antibodies and the same conditions as above. Quantification is shown as; mean + SEM of replicates for each treatment. e Glucose uptake was measured in human astrocyte cultures treated as above. rSEMA4D was added at time 0 and antibodies were added at t = 0 (solid lines and circles) for inhibition or t = 24 h (dotted lines and triangles) to evaluate reversal of activity. Quantification for each condition is shown as average + SEM from 3 wells/condition/timepoint. f Morphologic changes showing length and number of primary processes. For b to f, multivariate regression analysis was performed to determine the effect treatment conditions and dependent variables with treatment type. The significance levels are reported with Tukey post hoc tests for multivariate analysis Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/35933420), licensed under a CC-BY license. Not internally tested by R&D Systems.
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Detection of Plexin B1 by Flow Cytometry SEMA4D triggers receptor-mediated astrocyte reactivity, including changes in astrocyte morphology, expression of key transporters for glutamate recycling and energy metabolism and impairs astrocyte function of glucose uptake. a Primary human astrocyte cultures were stained for PLXN receptors (blue), compared to isotype control antibodies (red). Antibody blocking effect was determined by incubation with rSEMA4D or control protein, in presence/absence of anti-SEMA4D antibody/VX15 (human IgG4) or isotype-matched control antibodies for 48 h. Cultures were stained for b EAAT-2, and c GLUT-1 and MCT-4 transporters. d In a separate experiment, blocking of receptors was assessed using anti-PLXNB1 (mouse IgG1) and/or anti-PLXNB2 (mouse IgG2a) or isotype-matched control antibodies and the same conditions as above. Quantification is shown as; mean + SEM of replicates for each treatment. e Glucose uptake was measured in human astrocyte cultures treated as above. rSEMA4D was added at time 0 and antibodies were added at t = 0 (solid lines and circles) for inhibition or t = 24 h (dotted lines and triangles) to evaluate reversal of activity. Quantification for each condition is shown as average + SEM from 3 wells/condition/timepoint. f Morphologic changes showing length and number of primary processes. For b to f, multivariate regression analysis was performed to determine the effect treatment conditions and dependent variables with treatment type. The significance levels are reported with Tukey post hoc tests for multivariate analysis Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/35933420), licensed under a CC-BY license. Not internally tested by R&D Systems.
Reconstitution Calculator
Preparation and Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Plexin B1
Plexin B1 is a 300 kDa member of the B subfamily, Plexin family of Semaphorin receptors. Mature human Plexin B1 is a 2116 amino acid type I transmembrane (TM) glycoprotein that contains a 1471 aa extracellular domain (ECD) and a 612 aa cytoplasmic region. The ECD contains one Semaphorin domain, two PSI domains, and three IPT repeats. The ECD is cleaved into two subunits, a 200 kDa alpha -chain (aa 20-1305) and a 100 kDa TM beta -chain. The subunits are nondisulfide-linked and generate a high-affinity receptor. Plexin B1 is a receptor for Semaphorin 4D/CD100. It forms a receptor complex with neuropilins, MET, and EGF R2. Of three known splice variants, one shows a deletion of aa 689-871, a second shows a 53 aa substitution for aa 677‑2135, and a third shows a 53 aa substitution for the 53 aa between aa 677‑729. Over aa 35-150, human Plexin B1 shares 90% and 97% aa sequence identity with dog and mouse Plexin B1, respectively.
Product Datasheets
Citations for Human Plexin B1 Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
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PLXNB1 and other signaling drives a pathologic astrocyte state contributing to cognitive decline in Alzheimer's Disease
Authors: Comandante-Lou, N;Lama, T;Chen, K;Zhang, J;Hu, B;Liu, S;Heuer, S;Brennand, KJ;Schneider, J;Barnes, L;Zhang, B;Wang, M;Zou, H;Friedel, RH;Ma, Y;Young-Pearse, T;Li, A;Fujita, M;Bennett, D;Zhang, Y;Menon, V;Klein, HU;Taga, M;De Jager, PL;
bioRxiv : the preprint server for biology
Species: Human
Sample Types: Whole Tissue
Applications: Immunohistochemistry -
Semaphorin 4D is upregulated in neurons of diseased brains and triggers astrocyte reactivity
Authors: EE Evans, V Mishra, C Mallow, EM Gersz, L Balch, A Howell, C Reilly, ES Smith, TL Fisher, M Zauderer
Journal of Neuroinflammation, 2022-08-06;19(1):200.
Species: Mouse
Sample Types: Whole Cells
Applications: Functional Assay
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