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Key Documents

E2645

Sigma-Aldrich

Epidermal Growth Factor Receptor human

lyophilized powder, ≥15,000 units/mg protein (Bradford)

Synonyme(s) :

ERBB, ErbB1, HER1, EGFR

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About This Item

Numéro MDL:
Code UNSPSC :
12352202
Nomenclature NACRES :
NA.32

Source biologique

human

Niveau de qualité

Forme

lyophilized powder

Puissance

>15000.00 units/mg

Activité spécifique

≥15,000 units/mg protein (Bradford)

Poids mol.

~170 kDa

Conditionnement

pkg of 500UN

Conditions de stockage

avoid repeated freeze/thaw cycles

Technique(s)

cell based assay: suitable

Couleur

white

Solubilité

glycerol: 10%, clear to slightly hazy, colorless

Numéro d'accès UniProt

Conditions d'expédition

dry ice

Température de stockage

−20°C

Informations sur le gène

human ... EGFR(1956)

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Description générale

Research area: Cell signaling

Epidermal growth factor receptor (EGFR) belongs to a family of cell surface receptors called receptor tyrosine kinases (RTKs) and is also the most studied member of this family. The EGFR is encoded by the ErbB gene, mapped to chromosome 7 q22. These receptors are attached to the cytoplasmic membrane and consist of an ectodomain (ECD), comprising of four subdomains called DI-DIV, a hydrophobic transmembrane domain, and an intracytoplasmic tyrosine kinase domain.

Actions biochimiques/physiologiques

EGF exerts its actions by binding to the EGF receptor (EGFR), a 170 kDa glycoprotein having EGF-activated protein tyrosine kinase activity. Even in the absence of EGF-like ligands, EGFR can participate in cellular responses elicited by several other stimuli. High levels of EGFR are expressed in approximately one third of human epithelial tumors, and in the cancers of the bladder, breast or lung that have poor clinical prognosis, hence the interest in targeting EGFR.
Epidermal growth factor receptor (EGFR) has an essential role in normal developmental processes, and is mutated in multiple cancers. It is involved in the pathogenesis of epidermoid tumors, and thus, has extreme importance as a cancer therapeutic target. Gefitinib (GEF) and erlotinib act as EGFR inhibitors, and induce apoptosis in non-small cell lung cancer (NSCLC) cells. A truncated isoform, called EGFRvIII is linked to multiple cases of head and neck squamous cell carcinoma (HNSCC). In ∼40% of glioblastoma multiforme (GBM), this gene is amplified.

Définition de l'unité

One unit (U) of the enzyme is defined as the amount needed to incorporate 1 pmol of phosphate into the substrate (KVEKIGEGTYGVVYK: 6 - 20 residue of p34cdc2) in 1 minute.

Forme physique

Lyophilized from a solution in 50 mM HEPES, pH 7.6, 150 mM NaCl, 0.05% Triton X-100, 1 mM dithiothreitol, and 10% trehalose.

Notes préparatoires

Affinity purified from human carcinoma A431 cells.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Sarah E Wheeler et al.
PloS one, 10(2), e0117781-e0117781 (2015-02-07)
Head and neck squamous cell carcinoma (HNSCC) accounts for more than 5% of all cancers worldwide. The mortality rate of HNSCC has remained unchanged (approximately 50%) over the last few decades. Ubiquitous overexpression of wild type EGFR in many solid
Nicholas J Bessman et al.
Cell reports, 9(4), 1306-1317 (2014-12-03)
The epidermal growth factor receptor (EGFR) plays pivotal roles in development and is mutated or overexpressed in several cancers. Despite recent advances, the complex allosteric regulation of EGFR remains incompletely understood. Through efforts to understand why the negative cooperativity observed
Karol Kaszuba et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(14), 4334-4339 (2015-03-26)
The epidermal growth factor receptor (EGFR) regulates several critical cellular processes and is an important target for cancer therapy. In lieu of a crystallographic structure of the complete receptor, atomistic molecular dynamics (MD) simulations have recently shown that they can
Shohei Sugita et al.
Biochemical and biophysical research communications, 461(1), 28-34 (2015-04-11)
Gefitinib (GEF), an inhibitor for EGFR tyrosine kinase, potently induces autophagy in non-small cell lung cancer (NSCLC) cell lines such as PC-9 cells expressing constitutively activated EGFR kinase by EGFR gene mutation as well as A549 and H226 cells with
Kristen J Champion et al.
Cancer research, 68(12), 4649-4657 (2008-06-19)
von Hippel-Lindau (VHL) disease results from germline and somatic mutations in the VHL tumor suppressor gene and is characterized by highly vascularized tumors. VHL mutations lead to stabilization of hypoxia-inducible factor (HIF), which up-regulates proangiogenic factors such as vascular endothelial

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