ROBO4 Antibody (265703)

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications WB, Flow, CyTOF-ready
Clone
265703
Clonality
Monoclonal
Host
Mouse
Conjugate
Unconjugated
Concentration
LYOPH

ROBO4 Antibody (265703) Summary

Immunogen
Mouse myeloma cell line NS0-derived recombinant human ROBO4
Gln28-Arg467
Accession # Q8WZ75
Specificity
Detects human ROBO4 in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant rat ROBO1, recombinant human (rh) ROBO2, or rhROBO3 is observed.
Source
N/A
Isotype
IgG2a
Clonality
Monoclonal
Host
Mouse
Gene
ROBO4
Purity
Protein A or G purified from hybridoma culture supernatant
Purity Statement
Protein A or G purified from hybridoma culture supernatant
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Western Blot 1 ug/mL
  • Flow Cytometry 2.5 ug/10^6 cells
  • CyTOF-ready
Publications
Read Publications using
MAB2454 in the following applications:

Packaging, Storage & Formulations

Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 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.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Concentration
LYOPH
Purity
Protein A or G purified from hybridoma culture supernatant
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for ROBO4 Antibody (265703)

  • ECSM4
  • FLJ20798
  • Magic roundabout
  • MGC133352
  • MGC133353
  • MRB
  • ROBO4
  • roundabout homolog 4
  • roundabout homolog 4, magic roundabout (Drosophila)

Background

ROBO4, also called magic roundabout, is a ~150 kDa glycoprotein belonging to the ROBO family (1). ROBOs are molecular guidance receptors that typically interact with Slit ligands to regulate axon guidance and neuronal migration (2). Unlike other family members, ROBO4 is mainly restricted to the vascular endothelium (1, 2). Expression in early hematopoietic progenitors is also reported (3). The human ROBO4 cDNA encodes 1012 amino acids (aa), including a 27 aa signal sequence, a 440 aa extracellular domain (ECD) containing two C2‑type Ig domains and two fibronectin type III (FNIII) domains, a transmembrane domain and an intracellular domain. ROBO4 diverges from other ROBOs in the number of Ig, FNIII and cytoplasmic CC domains (1, 4). Within the ECD, human ROBO4 shares 80%, 80%, 87% and 88% aa identity with mouse, rat, bovine and canine ROBO4, respectively. Vascular endothelial ROBO4 is expressed at highest levels in during development and vascular remodeling, including tumor angiogenesis (1, 2, 4 ‑ 6). It is proposed to contribute to vascular stability. Consistent with this, endogenous ROBO4 is concentrated in the vascular stalk and sprouts rather than tip cells and appears to protect newly formed blood vessels against VEGF‑induced vascular leak (6 ‑ 9). ROBO4 binding of Slit proteins has been variably reported, and when detected may be mediated by ROBO4/ROBO1 heterodimers (2, 4 ‑ 7, 9 ‑ 13). ROBO4 is also variably reported to stimulate or inhibit cell migration or filopodia formation (2, 4 ‑ 13). Effects on cell movement may be mediated through intracellular binding of WASP‑, Ras/Rac/Rho‑, Mena‑, Src‑ or Paxillin‑related proteins, all of which affect the cytoskeleton (5 ‑ 7, 10 ‑ 12). Recombinant soluble ROBO4 ECD can antagonize endothelial cell migration and in vivo angiogenesis (13). 
  1. Huminiecki, L. et al. (2002) Genomics 79:547.
  2. Legg, J.A. et al. (2008) Angiogenesis 11:13.
  3. Shibata, F. et al. (2009) Stem Cells 27:183.
  4. Park, K.W. et al. (2003) Dev. Biol. 261:251.
  5. Seth, P. et al. (2005) Biochem. Biophys. Res. Commun. 332:533.
  6. Jones, C.A. et al. (2008) Nat. Med. 14:448.
  7. Jones, C.A. et al. (2009) Nat. Cell Biol. 11:1325.
  8. Chen, H. et al. (2010) Adv. Exp. Med. Biol. 664:457.
  9. London, N.R. et al. (2009) J. Thromb. Haemost. 7:57.
  10. Verissimo, A.R. et al. (2009) Biochem. Soc. Trans. 37:1214.
  11. Sheldon, H. et al. (2009) FASEB J. 23:513.
  12. Kaur, S. et al. (2008) BMC Cell Biol. 9:61.
  13. Suchting, S. et al. (2005) FASEB J. 19:121.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Publications for ROBO4 Antibody (MAB2454)(2)

We have publications tested in 1 confirmed species: Human.

We have publications tested in 2 applications: Immunoprecipitation, Western Blot.


Filter By Application
Immunoprecipitation
(1)
Western Blot
(1)
All Applications
Filter By Species
Human
(2)
All Species

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WB Video Protocol

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Secondary Antibodies

 

Isotype Controls

Other Available Formats

Alexa Fluor 350 FAB2454U
Alexa Fluor 405 FAB2454V
Alexa Fluor 488 FAB2454G
Alexa Fluor 594 FAB2454T
Alexa Fluor 647 FAB2454R
Alexa Fluor 700 FAB2454N
Alexa Fluor 750 FAB2454S
Phycoerythrin FAB2454P

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Bioinformatics

Gene Symbol ROBO4
Uniprot