Quality Standard:【产品介绍】Insulin recept o r substrates (IRS), the
maj o r intracellular substrates of the insulin recept
o r (IR), are adapt o r proteins that transduce
signals from the IR to downstream effect o r s that are
imp o r tant f o r the biological effect of insulin
(1-2). After insulin stimulation, IRS proteins are
rapidly phosph o r ylated on multiple tyrosine
residues. Once phosph o r ylated, IRS proteins bind
a n d activate Grb-2, SHP2 a n d the PI3-K p85
subunit (2-3). IRS-1 functions as one of the key regulat
o r s of IR a n d the insulin-like growth fact o r -1
recept o r . Disruption of IRS-1 causes growth retardation
a n d insulin resistance associated with
hypertension, hypertriglyceridemia, a n d
impaired endothelium-dependent vascular relaxation (4-5)
WB: 1:500,000
A. Western blot analysis on 293 cell lysates
using anti-Phospho-IRS-1 (pY896) RabMAb
(cat. #1813-1), 1:500,000 dilution. Cells were either
(A) untreated (B) treated with insulin