Work with LifeSpan to design a custom immunohistochemistry to address your specific biological question. Outsource the entire localization process without having to
worry about finding and characterizing target specific antibodies, sourcing and validating difficult-to-find tissues, and having the ability to interpret the resulting
immunostaining in relation to complex human pathologies.
TCR Screening Services
Test your therapeutic antibodies in immunohistochemistry against a broad panel of normal frozen human tissue types in order to determine potential unintended binding.
Our non-GLP TCR services are designed on the FDA recommendation outlined in their "Points to Consider in the Manufacture and Testing of Monoclonal Antibody Products for Human Use".
Human (tested or 100% immunogen sequence identity)
IHC - Paraffin
Western blot (1:500 - 1:2500)
ELISA (1:5000 - 1:25000)
Specificity and Use
DLL4 antibody was raised against synthetic peptide from human DLL4.
An internal region of Human DELTA-4.
This affinity purified antibody has been tested for use in ELISA, immunohistochemistry and western blotting. Specific conditions for reactivity should be optimized by the end user. Expect a band approximately 74 kD in size corresponding to DELTA-4 by western blotting in the appropriate cell lysate or extract.
0.02 M potassium phosphate, 0.15 M sodium chloride, pH 7.2, 0.01% sodium azide.
Long term: -20°C; Short term: +4°C. Avoid repeat freeze-thaw cycles.
Involved in the Notch signaling pathway as Notch ligand. Activates NOTCH1 and NOTCH4. Involved in angiogenesis; negatively regulates endothelial cell proliferation and migration and angiogenic sprouting. Essential for retinal progenitor proliferation is required for suppressing rod fates in late retinal progenitors as well as for proper generation of other retinal cell types. During spinal cord neurogenesis, inhibits V2a interneuron fate.
Anti-Delta-4 Antibody - Immunohistochemistry. Affinity Purified anti-Delta-4 antibody was used at 20 ug/ml to detect Delta-4 in a variety of tissues including colon, liver, skeletal muscle, ovary, pancreas, prostate, testes, thymus, tonsil and uterus. In contrast to reported findings, no staining was observed in vascular tissue. This image shows Delta-4 staining of human ovary. Tissue was formalin-fixed and paraffin embedded. Personal Communication, Tina Roush, LifeSpanBiosciences, Seattle, WA.
Western Blot - Anti-Delta-4 Antibody. Western blot of Affinity Purified anti-Delta-4 antibody shows detection of a 74-kD band corresponding to Delta-4 in a lysate prepared from mouse pancreatic tissue. Approximately 20 ug of lysate was run on SDS-PAGE and transferred onto nitrocellulose followed by reaction with a 1:500 dilution of anti-Delta-4 antibody. Detection occurred using a 1:5000 dilution of HRP-labeled Goat anti-Rabbit IgG for 1 hour at room temperature. A chemiluminescence system was used for signal detection (Roche) using a 3 min exposure time.
Requested From: United States
Date Requested: 2/20/2017