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SRP6495

Sigma-Aldrich

IGF 1R/CD221 human

recombinant, expressed in HEK 293 cells, ≥95% (SDS-PAGE)

Sinónimos:

IGF-1R, IGFIR, IGFR, IGFⅠR, Insulin-like Growth Factor 1 (IGF-1) Receptor, JTK13, MGC142170, MGC142172, MGC18216

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About This Item

UNSPSC Code:
12352200
NACRES:
NA.32

biological source

human

recombinant

expressed in HEK 293 cells

tag

6-His tagged (C-terminus)

assay

≥95% (SDS-PAGE)

form

lyophilized

mol wt

β subunit calculated mol wt 23 kDa
A subunit calculated mol wt 80 kDa
single-chain calculated mol wt 104 kDa
35 kDa
observed mol wt 120 kDa by SDS-PAGE (DTT-reduced.)
observed mol wt 80 kDa

packaging

pkg of 10 and 50 μg

impurities

<1 EU/μg endotoxin (LAL test)

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... IGF1R(3480)

General description

The Insulin-like Growth Factor 1 Receptor (IGF1R)is also known as CD221, JTK13, and is a transmembrane receptor that is activated by IGF-1 and by the related growth factor IGF-2. It belongs to the large class of tyrosine kinase receptors. This receptor mediates the effects of IGF-1, which is a polypeptide protein hormone similar in molecular structure to insulin. IGF1R is made up of two α subunits and two β subunits. Both the α and β subunits are synthesized from a single mRNA precursor. The precursor is then glycosylated, proteolytically cleaved, and crosslinked by cysteine bonds to form a functional transmembrane αβ chain. The α chains are located extracellularly while the β subunit spans the membrane and are responsible for intracellular signal transduction upon ligand stimulation. IGF1R have a binding site for ATP, which is used to provide the phosphates for autophosphorylation. There is a 60% homology between IGF1R and the insulin receptor. In response to ligand binding, the α chains induce the tyrosine autophosphorylation of the β chains. This event triggers a cascade of intracellular signaling that, while somewhat cell type specific, often promotes cell survival and cell proliferation.

Physical form

Lyophilized from 0.22 μm filtered solution in PBS, pH 7.4. Normally Mannitol or Trehalose is added as protectants before lyophilization.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 μg/mL. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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