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81357

Sigma-Aldrich

Poly(Glu, Tyr) sodium salt

suitable for ligand binding assays, Mol wt 20,000-50,000

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About This Item

Numéro CAS:
97105-00-5
Numéro MDL:
MFCD00148022
Code UNSPSC :
12352209
Nomenclature NACRES :
NA.26

product name

Poly(Glu, Tyr) sodium salt, mol wt 20,000-50,000, Glu:Tyr 4:1

Niveau de qualité

200

Forme

powder

Ratio alimentaire

Glu:Tyr (4:1)

Poids mol.

20,000-50,000

Technique(s)

ligand binding assay: suitable

Couleur

white to off-white

Température de stockage

−20°C

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Actions biochimiques/physiologiques

Poly(Glu,Tyr) (poly(Glu,Tyr) 4:1 random copolymer) is used as a substrate for the evaluation of protein tyrosine kinase(s).
Poly(Glu,Tyr) 4:1 is a polyamino acid used in the manufacture of electrochemical biosensors for detection of reactions such as Fenton induced tyrosine oxidation.

Autres remarques

For additional technical information on polyamino acids please visit the Polyamino acid FAQ resource.

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

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Certificats d'analyse (COA)

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Masanobu Chiku et al.
Biosensors & bioelectronics, 26(1), 235-240 (2010-07-17)
In this report, we determined protein tyrosine kinase (PTKs) activity in human epidermoid carcinoma cells (A431) by employing a novel electrochemical method using boron-doped diamond (BDD) electrodes that enables the electrochemical oxidation of tyrosine (Tyr), phosphorylated Tyr (Tyr-P) and sulfated
Morten R Clausen et al.
Journal of agricultural and food chemistry, 56(18), 8692-8698 (2008-09-02)
Oxidation of 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) by lactoperoxidase was found to be inhibited by tyrosine-containing random amino acid copolymers but not by tyrosine. Both electrostatic effects and polymer size were found to be important by comparison of negatively and positively charged copolymers
Na Qu et al.
Biosensors & bioelectronics, 26(5), 2292-2296 (2010-11-03)
A simple and sensitive electrochemical biosensor was used to detect tyrosine oxidation induced by hydroxyl radicals generated by Fenton reaction (Fe(2+)/H(2)O(2)). Poly(glu, tyr) (4:1) peptides were immobilized on indium tin oxide (ITO) electrode surface via layer-by-layer assembly technique, and Os(bpy)(3)(2+)-mediated
D M Williams et al.
The Journal of biological chemistry, 275(49), 38127-38130 (2000-09-28)
Protein-tyrosine kinases contain a catalytic loop Arg residue located either two or four positions downstream of a highly conserved Asp residue. In this study, the role of this Arg (Arg-318) in the protein-tyrosine kinase C-terminal Src kinase (Csk) was investigated.
Edit Varkondi et al.
Journal of receptor and signal transduction research, 25(1), 45-56 (2005-06-18)
Receptor tyrosine kinases (PTKs) play key roles in the pathogenesis of numerous human diseases, including cancer, and therefore PTK inhibitors are currently under intense investigation as potential drug candidates. PTK inhibitor screening data are, however, poorly comparable because of the
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