PLXNB1 Antibody, FITC conjugated

Code CSB-PA018222LC01HU
Size US$166
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Product Details

Full Product Name
Rabbit anti-Homo sapiens (Human) PLXNB1 Polyclonal antibody
Uniprot No.
Target Names
Alternative Names
PLXNB1 antibody; KIAA0407 antibody; PLXN5 antibody; SEP antibody; Plexin-B1 antibody; Semaphorin receptor SEP antibody
Raised in
Species Reactivity
Recombinant Human Plexin-B1 protein (664-837AA)
Immunogen Species
Homo sapiens (Human)
Purification Method
>95%, Protein G purified
It differs from different batches. Please contact us to confirm it.
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Troubleshooting and FAQs
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

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Target Background

Receptor for SEMA4D. Plays a role in GABAergic synapse development. Mediates SEMA4A- and SEMA4D-dependent inhibitory synapse development. Plays a role in RHOA activation and subsequent changes of the actin cytoskeleton. Plays a role in axon guidance, invasive growth and cell migration.
Gene References into Functions
  1. Analysis of the interaction of Plexin-B1 and Plexin-B2 with Rnd family proteins shows lack of binding specificity. PMID: 29040270
  2. The positive expression of both Sema4D and PlexinB1 was found to be an independent risk factor for a worse survival in colorectal cancer. PMID: 27456345
  3. Loss of plexin B1 expression might play a pivotal role in enhancing the metastatic potential of breast cancer cells. PMID: 28739743
  4. Plexin B1 expression was regulated by TMPRSS2-ERG fusion gene in prostate cancer. PMID: 28004109
  5. Plexin-B1 mediates RhoA/integrin alphavbeta3 involved in the PI3K/Akt pathway and SRPK1 to influence the growth of glioma cell, angiogenesis, and motility in vitro and in vivo. PMID: 26944058
  6. results show that Sema4D/plexin-B1 signaling promotes the translocation of androgen receptor to the nucleus and thereby enhances AR transcriptional activity PMID: 25982277
  7. Plexin-B1 induces cutaneous squamous cell carcinoma cell proliferation, migration, and invasion by interacting with Sema4D. Plexin-B1 might serve as a useful biomarker and/or as a novel therapeutic target for cSCC. PMID: 26051877
  8. Results show that decreased expression of Sema4D, plexin-B1 and -B2 was associated with local recurrence and poor prognosis of breast neoplasm. PMID: 26035216
  9. Dysregulation of the vascular endothelial growth factor and semaphorin ligand-receptor families in prostate cancer metastasis PMID: 26341082
  10. Blocking of CD100, plexin B1 and/or B2 in adhesion experiments have shown that both CD100 and plexins act as adhesion molecules involved in monocyte-endothelial cell binding. PMID: 26275342
  11. Activation of endogenous plexin-B1 enhances cell migration and tumor invasiveness in prostate cancer cells. PMID: 23775445
  12. Data indicate that Rnd1 efficiently displaces Rac1 from its complex with Plexin-B1 but not vice versa. PMID: 23603360
  13. ErbB-2 overexpression in human breast & ovarian cancer cell lines leads to phosphorylation & activation of Plexin-B1. This was required for ErbB-2-dependent activation of RhoA & RhoC & promoted invasive behavior. PMID: 22378040
  14. PlexinB1 mutations block plexinB1-mediated signalling pathways that inhibit cell motility. PMID: 22404908
  15. evidence that Sema4D/Plexin-B1-mediated NF-kappaB activation and IL-8 production is critical in the generation a pro-angiogenic phenotype in endothelial cells PMID: 22028792
  16. Two crystal structures of the human Plexin-B1 cytoplasmic region in complex with a constitutively active RhoGTPase, Rac1, are reported. PMID: 21912513
  17. The binding of Sema4D to plexinB1 induced small GTPase Ras homolog gene family, member A activation and resulted in the phosphorylation of MAPK and Akt. PMID: 21812859
  18. plexin-B1, a target of miR-214, may function as an oncogene in human cervical cancer HeLa cells PMID: 21216304
  19. Plexin B1 abrogates integrin-dependent migration and activation of pp125(FAK). PMID: 21029396
  20. Plexin-B1 expression correlates with malignant phenotypes of serous ovarian tumors, probably via phosphorylation of AKT at Ser473 PMID: 21059203
  21. crystal structures of cognate complexes of the semaphorin-binding regions of plexins B1 and A2 with semaphorin ectodomains (human PLXNB1(1-2)-SEMA4D(ecto) and murine PlxnA2(1-4)-Sema6A(ecto)), plus unliganded structures of PlxnA2(1-4) and Sema6A(ecto) PMID: 20877282
  22. Sema4D/Plexin-B1 promotes the dephosphorylation and activation of PTEN through the R-Ras GAP activity, inducing growth cone collapse. PMID: 20610402
  23. Plexin B1 may function as a tumor promoter in melanomas not driven by c-Met activation. PMID: 20164843
  24. Data show that Plex-B1 assumes a predictive value for unfavourable outcome when co-expressed with Met. PMID: 19940359
  25. The plexin-B1/Rac interaction inhibits PAK activation and enhances Sema4D ligand binding PMID: 11937491
  26. LARG plays a critical role in plexin-B1 signaling to stimulate Rho activation and cytoskeletal reorganization. PMID: 12196628
  27. Interaction of plexin-B1 with PDZ domain-containing Rho guanine nucleotide exchange factors PMID: 12220504
  28. Plexin-B1 is an easily accessible receptor for CD100 within the immune system. The crosstalk operated by the CD100/Plexin-B1 interaction is not malignancy related but reproduces a mechanism used by normal CD5+ B cells. PMID: 12406905
  29. cleavage by proprotein convertases is a novel regulatory step for semaphorin receptors localized at the cell surface. PMID: 12533544
  30. In some human neoplastic lines, PLXB1 is overexpressed, constitutively tyrosine phosphorylated, and associated with Scatter Factor Receptors. PMID: 15184888
  31. ErbB-2-mediated phosphorylation of plexin-B1 is critically involved in Sema4D-induced RhoA activation. PMID: 15210733
  32. demonstrate that Sema4D is angiogenic in vitro and in vivo and that this effect is mediated by its high-affinity receptor, Plexin B1, and that biologic effects elicited by Plexin B1 require coupling and activation of the Met tyrosine kinase PMID: 15632204
  33. the minimal Rac1 GTPase binding domain of plexin-B1 has a ubiquitin fold, as shown by NMR PMID: 15929008
  34. Semaphorin 4D/plexin-B1 induces endothelial cell migration through the activation of PYK2, Src, and the phosphatidylinositol 3-kinase-Akt pathway PMID: 16055703
  35. Plexin-B1 contributes to trophoblast-endometrium interactions, most likely by enhancing adhesion properties. PMID: 17383649
  36. Binding of Rac1, Rnd1, and RhoD to a novel Rho GTPase interaction motif destabilizes dimerization of the plexin-B1 effector domain PMID: 17916560
  37. 13 somatic missense mutations in the cytoplasmic domain of the Plexin-B1 gene hinder Rac & R-Ras binding & R-RasGAP activity, & increase cell motility, invasion, adhesion, & lamellipodia extension. PMID: 18024597
  38. a novel mechanism by which plexin-mediated signaling can be regulated and explains how Sema4D can exert different biological activities through the differential association of its receptor with ErbB-2 and Met. PMID: 18025083
  39. NMR solution structure of the Rho GTPase binding domain; study suggests that the oncogenic behavior of the mutants can be rationalized with reference to the structure of the RBD of plexin-B1 PMID: 18275816
  40. Plexin B1 protein is absent in more than 80% of renal cell carcinomas. when we have induced plexin B1 expression with an expression vector in the renal adenocarcinoma cell line ACHN, a marked reduction in proliferation rate was produced. PMID: 18279812
  41. Mapping of the Rac1 GTPase surface that contacts the Rho GTPase binding domain of plexin-B1 by NMR confirms the plexin domain as a GTPase effector protein and regions neighboring the GTPase switch I and II regions are also involved in the interaction. PMID: 18321527
  42. Plexin B1 expression is reduced in the group of "uncoupled" stem cell-like breast cancer tumors PMID: 18417270
  43. Plexin-B1 is a dual functional GTPase activating protein for R-Ras and M-Ras, remodelling axon and dendrite morphology, respectively. PMID: 19444311
  44. B-Raf/MKK/ERK provides a permissive environment for melanoma genesis by modulating plexin B1. PMID: 19483722
  45. show here that activation of plexin-B1 by Semaphorin 4D and its subsequent tyrosine phosphorylation creates docking sites for the SH2 domains of phospholipase Cgamma. PMID: 19805522
  46. the monomeric intracellular plexin-B1 binds R-Ras but not H-Ras. These findings suggest that the monomeric form of the intracellular region is primed for GAP activity and extend a model for plexin activation. PMID: 19843518

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Subcellular Location
[Isoform 1]: Cell membrane; Single-pass type I membrane protein.; [Isoform 2]: Secreted.; [Isoform 3]: Secreted.
Protein Families
Plexin family
Tissue Specificity
Highly expressed in fetal kidney, and at slightly lower levels in fetal brain, lung and liver.
Database Links

HGNC: 9103

OMIM: 601053

KEGG: hsa:5364

STRING: 9606.ENSP00000296440

UniGene: Hs.476209

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