Human ALK-1 Antibody

Catalog # Availability Size / Price Qty
MAB3701-100
MAB3701-SP
BMP-9 Binding to ALK-1 Blocked by Human ALK-1 Antibody.
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Human ALK-1 Antibody Summary

Species Reactivity
Human
Specificity
Detects human ALK-1 in direct ELISAs.
Source
Monoclonal Mouse IgG1 Clone # 117702
Purification
Protein A or G purified from ascites
Immunogen
Mouse myeloma cell line NS0-derived recombinant human ALK‑1
Asp22-Gln118
Accession # P37023
Formulation
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.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Blockade of Receptor-ligand Interaction
In a functional ELISA, 0.15-0.75 μg/mL of this antibody will block 50% of the binding of Recombinant Human BMP-9 (Catalog # 9624-BP) to immobilized Recombinant Human ALK-1 (Catalog # 370-AL) coated at 1 μg/mL (100uL/well). At 2 μg/mL, this antibody will block >90% of the binding.
 

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.

Data Example

Blockade of Receptor-ligand Interaction BMP-9 Binding to ALK-1 Blocked by Human ALK-1 Antibody. View Larger

BMP-9 Binding to ALK-1 Blocked by Human ALK-1 Antibody. In a functional ELISA, Recombinant Human BMP-9 (Catalog # 9624-BP) binds to immobilizedRecombinant Human ALK-1 (Catalog # 370-AL) coated at 1 μg/mL (100uL/well) in a dose-dependent manner (orange line). Binding is blocked (green line) by increasing concentrations of Mouse Anti-Human Alk-1 Monoclonal Antibody (Catalog # MAB3701).  At 2 μg/mL, this antibody will block 90% of the binding.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & 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.

Background: ALK-1

Transforming Growth Factor beta (TGF-beta ) superfamily ligands exert their biological activities via binding to heteromeric receptor complexes of two types (I and II) of serine/threonine kinases. Type II receptors are constitutively active kinases that phosphorylate type I receptors upon ligand binding. In turn, activated type I kinases phosphorylate downstream signaling molecules including the various smads. Transmembrane proteoglycans, including the type III receptor (betaglycan) and endoglin, can bind and present some of the TGF-beta superfamily ligands to type I and II receptor complexes and enhance their cellular responses. Seven type I receptors (also termed activin receptor-like kinase (ALK)) and five type II receptors have been isolated from mammals. ALK-2, -3, -4, -5, and -6 are also known as Activin R1A, BMPR-1A, Activin R1B, TGF-beta R1, and BMPR-1B, respectively, reflecting their ligand preferences. Evidence suggests that TGF-beta 1, TGF-beta 3 and an unknown ligand present in serum can activate chimeric ALK-1. ALK-1 shares with other type I receptors a cysteine-rich domain with conserved cysteine spacing in the extracellular region, and a glycine- and serine-rich domain (the GS domain) preceding the kinase domain. ALK-1 is expressed highly in endothelial cells and other highly vascularized tissues. The expression patterns of ALK-1 parallels that of endoglin. Mutations in ALK-1 as well as in endoglin are associated with hereditary hemorrhagic telangiectasia (HHT), suggesting a critical role for ALK-1 in the control of blood vessel development or repair. Human and mouse ALK-1 share approximately 71% amino acid sequence identity in their extracellular regions.

References
  1. ten Dijke, P. et al. (1993) Oncogene 8:2879.
  2. ten Dijke, P. et al. (1994) Science 264:101.
  3. Lux, A. et al. (1999) J. Biol. Chem. 274:9984.
Long Name
Activin Receptor-like Kinase 1
Entrez Gene IDs
94 (Human); 11482 (Mouse)
Alternate Names
activin A receptor type II-like 1; activin A receptor, type II-like kinase 1; Activin receptor-like kinase 1; ACVRL1; ACVRLK1ORW2; ALK1; ALK-1; ALK1TGF-B superfamily receptor type I; EC 2.7.11; HHT; HHT2EC 2.7.11.30; serine/threonine-protein kinase receptor R3; SKR3; TSR-I

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Secondary Antibodies

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