Lefty proteins are novel TGF-beta ligands that function as antagonists of Nodal signaling. The expression of Lefty proteins on the left side of the developing mouse embryo earned this protein family its name. Two genes exist in mouse (Lefty-1 and Lefty-2) and two in humans (Lefty-A and Lefty-B). By amino acid sequence, human Lefty-A and Lefty-B are more similar to each other (96%) than to either Lefty-1 or Lefty-2 in the mouse (81-82%). The Leftys contains some of the features of the cysteine-knot structure conserved among TGF-beta-related proteins, but also some structural differences. Specifically, they lack the alpha-helical segment important for ligand dimerization as well as the cysteine residue involved in stabilization of dimers.
Key Product Details
Species Reactivity
Human, Mouse
Applications
Western Blot
Label
DyLight 350 (Excitation = 353 nm, Emission = 432 nm)
Antibody Source
Polyclonal Goat IgG
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Product Specifications
Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse Lefty-1
Leu22-Arg135, His6, Leu136-Pro368
Accession # Q64280
Leu22-Arg135, His6, Leu136-Pro368
Accession # Q64280
Specificity
Detects human and mouse Lefty in direct ELISAs and Western blots.
Clonality
Polyclonal
Host
Goat
Isotype
IgG
Applications for Lefty Antibody [DyLight 350]
Application
Recommended Usage
Western Blot
Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Formulation
50mM Sodium Borate
Preservative
0.05% Sodium Azide
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store at 4C in the dark.
Background: Lefty
Alternate Names
AI450052;Ebaf;LEFTB;Lefty;LEFTY1;lefty-1;LEFTYB;RGD1561867;Stra3;Tgfb4;UNQ278/PRO317
Gene Symbol
LEFTY2
Additional Lefty Products
Product Documents for Lefty Antibody [DyLight 350]
Certificate of Analysis
To download a Certificate of Analysis, please enter a lot or batch number in the search box below.
Product Specific Notices for Lefty Antibody [DyLight 350]
DyLight (R) is a trademark of Thermo Fisher Scientific Inc. and its subsidiaries.
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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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
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- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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