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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

CAS Number:
97105-00-5
MDL number:
MFCD00148022
UNSPSC Code:
12352209
NACRES:
NA.26

product name

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

Quality Level

200

form

powder

feed ratio

Glu:Tyr (4:1)

mol wt

20,000-50,000

technique(s)

ligand binding assay: suitable

color

white to off-white

storage temp.

−20°C

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Biochem/physiol Actions

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.

Other Notes

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (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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