Human Cripto 1 PE-conjugated Antibody

Catalog # Availability Size / Price Qty
FAB2772P
Detection of Cripto in Human PBMCs by Flow Cytometry.
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Product Details
Citations (3)
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Human Cripto 1 PE-conjugated Antibody Summary

Species Reactivity
Human
Specificity
Detects human Cripto-1 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant mouse Cripto-1, recombinant human (rh) EGF, rhTGF‑ alpha, rhTGF-beta 1, rhTGF-beta 2, rhTGF-beta 3, or rhCryptic is observed.
Source
Monoclonal Mouse IgG1 Clone # 89633
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
E. coli-derived recombinant human Cripto-1
Arg38-Tyr188
Accession # P13385
Formulation
Supplied in a saline solution containing BSA and Sodium Azide.
Label
Phycoerythrin (Excitation= 488 nm, Emission= 565-605 nm)

Applications

Recommended Concentration
Sample
Flow Cytometry
10 µL/106 cells
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.

Data Example

Flow Cytometry Detection of Cripto antibody in Human PBMCs antibody by Flow Cytometry. View Larger

Detection of Cripto in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) were stained with Mouse Anti-Human Cripto 1 PE-conjugated Monoclonal Antibody (Catalog # FAB2772P, filled histogram) or isotype control antibody (Catalog # IC002P, open histogram). View our protocol for Staining Membrane-associated Proteins.

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Preparation and Storage

Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8° C. Do not use past expiration date. Protect from light.

Background: Cripto

Cripto is the founding member of the epidermal growth factor-CriptoFRL1Cryptic (EGF-CFC) family of signaling proteins that function in cancer and various developmental processes. These developmental processes include: formation of the germ layers and dorsal organizer, specification of anterior-posterior and left-right axes, and differentiation of heart muscle (1, 2). Other members of the EGF-CFC family include Cryptic, Xenopus FRL-1 and zebrafish OEP (one-eyed pinhead). Overall sequence identity between members of the family is low, but they do share several common domains: a variant EGF-like motif, a novel conserved
cysteine-rich domain (called CFC domain), and a C-terminal hydrophobic region. Most EGF-CFC members have a glycosyl-phosphatidylinositol (GPI) anchoring site at the C-terminus and exist as extracellular membrane-anchored proteins. However, naturally-occurring soluble isoforms also exist. Human Cripto shares 66% and 28% amino acid identity with mouse Cripto and zebrafish OEP, respectively (2). Despite weak conservation in amino acid identity, EGF-CFC family members appear to function similarly in assays for phenotypic rescue of zebrafish oep mutants (2). Both secreted and membrane bound forms of Cripto demonstrate biological activity (3). Cripto, also known as CFC-2 or TDGF-1 (teratocarcinoma-derived growth factor), was originally isolated from an undifferentiated human teratocarcinoma cell line as a potential oncogene. It is overexpressed in many types of cancers and acts as a growth factor for tumors (4). Genetic evidence from mice and zebrafish points to a role for Cripto as an essential cofactor in Nodal signaling. Cripto and OEP mutants display defects in mesoderm induction and heart morphogenesis, similar to phenotypes seen in Nodal mutants (2).Cripto acts as a cofactor for Nodal by recruiting the Activin type I Receptor, ALK-4, leading to an
Act RIIB-ALK4-Cripto-Nodal complex for signaling (1, 3). Cripto also forms a complex with activin and Act RIIs to block activin signaling (5). Studies have shown that other TGF-beta superfamily members such as Vg1 and GDF-1 also require EGF-CFC cofactors (6). Cripto can also activate mitogen-activated protein kinase (MAPK) and Akt pathways independently of Nodal by directly binding to a membrane-associated heparan sulfate proteoglycan, glypican-1 (7).

References
  1. Rosa, F.M. (2002) Science’s STKE http://stke.sciencemag.org/.
  2. Shen, M. and A. Schier (2000) Trends Genet. 16:303.
  3. Yan, Y-T. et al. (2002) Mol. Cell Biol. 22:4439.
  4. Salomon, D. et al. (2000) Endocrine-Rel. Cancer 7:199.
  5. Gray, P.C. et al. (2003) Proc. Natl. Acad. Sci. USA 100:5193.
  6. Cheng, S. et al. (2003) Genes & Dev. 17:31.
  7. Bianco, C. et al. (2003) Cancer Research 63:1192.
Long Name
Teratocarcinoma-derived Growth Factor/Cripto Growth Factor
Entrez Gene IDs
6997 (Human); 21667 (Mouse)
Alternate Names
CFC-2; CR; Cripto; Cripto-1 growth factor; Cripto-1; CRIPTOCRGF; Epidermal growth factor-like cripto protein CR1; TDGF1; TDGF-1; teratocarcinoma-derived growth factor 1

Product Datasheets

Citations for Human Cripto 1 PE-conjugated 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.

3 Citations: Showing 1 - 3
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  1. Autoregulation and heterogeneity in expression of human Cripto-1.
    Authors: Loying, Pojul, Manhas, Janvie, Sen, Sudip, Bose, Biplab
    PLoS ONE, 2015;10(2):e0116748.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  2. Requirement of glycosylphosphatidylinositol anchor of Cripto-1 for trans activity as a Nodal co-receptor.
    Authors: Watanabe K, Hamada S, Bianco C, Mancino M, Nagaoka T, Gonzales M, Bailly V, Strizzi L, Salomon DS
    J. Biol. Chem., 2007;282(49):35772-86.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  3. Growth factor induction of Cripto-1 shedding by glycosylphosphatidylinositol-phospholipase D and enhancement of endothelial cell migration.
    Authors: Watanabe K, Bianco C, Strizzi L, Hamada S, Mancino M, Bailly V, Mo W, Wen D, Miatkowski K, Gonzales M, Sanicola M, Seno M, Salomon DS
    J. Biol. Chem., 2007;282(43):31643-55.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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