Péptidos

Stability Air Sensitive
Applications L-Cysteinylglycine, is a biologically important compound since it is formed during the γ-glutamyl cycle. It is a cysteinyl peptide, that can be used in the studies of many peptides and important proteins.
References Marvin D., et al.: New J. Org. Synth., 12, 185 (1980); Sheehan, J. C., et al.: New Synth. Cysteinyl Peptide, 1159 (1958);

Applications L-Alanyl-L-alanyl-L-alanine (cas# 5874-90-8) is a useful research chemical.

Applications N-L-GAMMA-GLUTAMYL-L-LEUCINE (cas# 2566-39-4) is a useful research chemical.

Stability Hygroscopic
Applications H-Asp-Leu-OH (cas# 3062-14-4) is a useful research chemical.

Applications L-Carnosine is a naturally-occurring histidine-containing compound and the biological role of this dipeptide is to act as cytosolic buffering agents. Other roles ascribed to L-Carnosine include actions as neurotransmitters, modulation of enzymic activities and chelation of heavy metals.
References Quinn, P.J., et al.: Mol. Aspects. Med., 13, 379 (1992); Aruoma, O.I., et al.: Biochem. J., 264, 863 (1989);

Applications D-Lactic Acid occurs in small quantities in the blood and muscle fluid of man and animals. The lactic acid concentration increases in muscle and blood after vigorous activity.
References He, W. et al.: Comp. Biochem. Phys. Part A: Mol. Int. Phys., 166, 308 (2013)

Stability Moisture Sensitive
Applications L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly used as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.
References Hui, N. et al.: Meat Sci. Appl., 74 (2001); Kiviharju, K. et al.: J. Biotechnol., 117, 299 (2005); Pecivova, P. et al.: J. Sci. Food Agric., 90, 1681 (2010);

Applications Lactoferrin is a multifunctional protein of transferin family. A glycoprotein present in various secretions including milk, saliva and tears. Antiviral agent, it binds to liproproteins of cell membranes dispersing virus molecules from host cells.
References Sánchez L. et al.: Arch. Dis. CHild., 67, 657 (1992); Harmsen MC. et al.: J. Infect. Dis., 172, 380 (1995);

Stability Moisture Sensitive
Applications Amino reactive biotin reagent for preparing biotinylated surfaces or polypeptides.
References Ngo, T.T., et al.: Applied Biochem. Biotech, 7, 443 (1982), Wojchowski, D.M., et al.: J. Immunol. Methods, 90, 173 (1986);

Applications Poly(ethylene Glycol) molecules of an average molecular mass of 1000. Poly(ethylene Glycol) is used in various applications from industrial chemistry to biological chemistry. Recent research has shown PEG maintains the ability to aid the spinal cord injury recovery process, helping the nerve impulse conduction process in animals. In rats, it has been shown to aid in the repair of severed sciatic axons, helping with nerve damage recovery. It is industrially produced as a lubricating substance for various surfaces to reduce friction. PEG is also used in the preparation of vesicle transport systems in with application towards diagnostic procedures or drug delivery methods.
References Borgens, R. et al.: J. Neurosci. Res., 66, 1179 (2001); Stavisky, R. et al.: Neurosci. Lett., 376, 98 (2005); Nalam, P. et al.: Tribiol. Lett., 37, 541 (2010); Steinmetz, N. et al.: J. Am. Chem. Soc., 131, 17093 (2009); Li, X. et al.: J. Am. Chem. Soc., 133, 11147 (2011); Li, L. et al.: Int. J. Pharm., 447, 192 (2013);

Applications Poly(ethylene Glycol) molecules of an average molecular mass of 600. Poly(ethylene Glycol) is used in various applications from industrial chemistry to biological chemistry. Recent research has shown PEG maintains the ability to aid the spinal cord injury recovery process, helping the nerve impulse conduction process in animals. In rats, it has been shown to aid in the repair of severed sciatic axons, helping with nerve damage recovery. It is industrially produced as a lubricating substance for various surfaces to reduce friction. PEG is also used in the preparation of vesicle transport systems in with application towards diagnostic procedures or drug delivery methods.
References Borgens, R. et al.: J. Neurosci. Res., 66, 1179 (2001); Stavisky, R. et al.: Neurosci. Lett., 376, 98 (2005); Nalam, P. et al.: Tribiol. Lett., 37, 541 (2010); Steinmetz, N. et al.: J. Am. Chem. Soc., 131, 17093 (2009); Li, X. et al.: J. Am. Chem. Soc., 133, 11147 (2011); Li, L. et al.: Int. J. Pharm., 447, 192 (2013);

Applications N-CBZ-Glycyl-glycyl-L-arginine 7-Amido-4-methylcoumarin Hydrochloride is a fluorogenic substrate for uPA (urokinase).
References Zimmerman, M., et al. Proc. Natl. Acad. Sci. USA 75, 750 (1978);