Human Nodal Antibody

Catalog #: MAB3218 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB3218
MAB3218-SP

Detection of Human Nodal by Western Blot.

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All Nodal Antibodies

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Human Nodal Antibody Summary

Species Reactivity

Human

Specificity

Detects human Nodal in ELISAs. In direct ELISAs, 100% cross-reactivity with recombinant mouse Nodal is observed.

Source

Monoclonal Mouse IgG_2A Clone # 784410

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

E. coli-derived recombinant human Nodal
His238-Leu347
Accession # Q96S42

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Applications

Recommended Concentration

Sample

Western Blot

2 µg/mL

See below

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

Western Blot

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Detection of Human Nodal by Western Blot. Western blot shows lysates of undifferentiated or mesendoderm-differentiated BG01V human embryonic stem cells. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human Nodal Monoclonal Antibody (Catalog # MAB3218) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for Nodal at approximately 35-47 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Sterile PBS to a final concentration of 0.5 mg/mL.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

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: Nodal

Nodal is a secreted protein that is a member of the Transforming Growth Factor-beta (TGF-beta ) superfamily. Nodal was named for its localized expression in the mouse node during gastrulation, and is first detected in the early primitive streak during mesoderm formation. Expression of the Nodal gene occurs asymmetrically in the left, but not right, lateral plate during somitogenesis. Nodal proteins play crucial roles in mesoderm formation and both anterior-posterior and left-right axis formation during vertebrate development. Members of the Nodal gene family include mouse Nodal, chick cNR-1, frog Xnr1-4, and zebrafish cyclops. Biologically active Nodal is a disulfide-linked homodimer and contains all seven of the cysteine residues necessary for formation of the “cysteine knot” characteristic of TGF-beta -related molecules. Mouse Nodal is 34-39% homologous in the conserved region to other TGF-beta superfamily members. Nodal has been shown to signal through a mechanism related to the Activin pathway, and signaling is mediated through both Smad2 and 3. Nodal signaling utilizes type II Activin receptors, together with ALK4/ActRIB, or the type I receptor ALK7. Nodal interacts extracellularly with members of other protein families including Cerberus, Lefty, and EGF-CFC ligands such as Cripto. While the Cerberus and Lefty families act as Nodal antagonists, the EGF-CFC molecules act as co-receptors to facilitate Nodal signaling. The resulting concert of regulated Nodal activity allows for the precise control of mesoderm formation, neural patterning, and axis positioning and patterning during early vertebrate development.

References