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P1152

Sigma-Aldrich

Poly(Ala, Glu, Lys, Tyr) 6:2:5:1 hydrobromide

greener alternative

Ala:Glu:Lys:Tyr (6:2:5:1), mol wt 20,000-30,000

Synonym(s):

(L-Ala, L-Glu, L-Lys, L-Tyr)n ·HBr, COP-1

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About This Item

CAS Number:
28704-27-0
MDL number:
MFCD00166401
UNSPSC Code:
12352202
NACRES:
NA.26

form

powder

feed ratio

Ala:Glu:Lys:Tyr (6:2:5:1)

mol wt

20,000-30,000

greener alternative product score

old score: 56
new score: 39
Find out more about DOZN™ Scoring

greener alternative product characteristics

Designing Safer Chemicals
Safer Solvents and Auxiliaries
Reduce Derivatives
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

color

white to off-white

greener alternative category

, Re-engineered

storage temp.

−20°C

InChI

1S/C9H11NO3.C6H14N2O2.C5H9NO4.C3H7NO2/c10-8(9(12)13)5-6-1-3-7(11)4-2-6;7-4-2-1-3-5(8)6(9)10;6-3(5(9)10)1-2-4(7)8;1-2(4)3(5)6/h1-4,8,11H,5,10H2,(H,12,13);5H,1-4,7-8H2,(H,9,10);3H,1-2,6H2,(H,7,8)(H,9,10);2H,4H2,1H3,(H,5,6)/t8-;5-;3-;2-/m0000/s1

InChI key

YLOCGHYTXIINAI-XKUOMLDTSA-N

General description

We are committed to bringing you Greener Alternative Products, which adhere to one of the four categories of Greener Alternatives . This product belongs to category of Re-engineered products, showing key improvements in Green Chemistry Principles “Designing Safer Chemicals”, "Safer Solvents and Auxiliaries" and “Reduce Derivatives”. Click here to view its DOZN scorecard.

Biochem/physiol Actions

Poly(Ala, Glu, Lys, Tyr) 6:2:5:1 hydrobromide is a polyamino acid reported to have a suppressive effect on allergic encephalomyelitis.
Reported to have suppressive effect on experimental allergic encephalomyelitis induced in laboratory animals.

Analysis Note

Reported molecular weight based on viscosity.

Other Notes

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Neurodegeneration and neuroprotection in glaucoma: development of a therapeutic neuroprotective vaccine: the Friedenwald lecture.
Michal Schwartz
Investigative ophthalmology & visual science, 44(4), 1407-1411 (2003-03-27)
D Teitelbaum et al.
Journal of neural transmission. Supplementum, 49, 85-91 (1997-01-01)
Copolymer 1 (Cop 1), a synthetic copolymer of amino acids, is very effective in suppression of experimental autoimmune encephalomyelitis (EAE), the animal model for multiple sclerosis (MS). Cop 1 was found incapable of inducing EAE, yet it suppressed EAE in
R Aharoni et al.
Immunology letters, 58(2), 79-87 (1997-07-01)
Graft-versus-host disease (GVHD), which occurs when donor T-cells recognize multiple minor host histocompatibility antigens as non-self, presents the major limitation to successful allogeneic bone-marrow transplantation. The synthetic random copolymer of the amino acids, L-Glu, L-Lys, L-Ala and L-Tyr, termed GLAT
Suppression of experimental allergic encephalomyelitis by a synthetic polypeptide.
D Teitelbaum et al.
European journal of immunology, 1(4), 242-248 (1971-08-01)
M Sela
Applied biochemistry and biotechnology, 83(1-3), 63-70 (2000-05-29)
The conformation of a peptide defines its antigenic specificity. In most cases, a free peptide is in a random form, whereas the same peptide within a protein has a defined conformation. Immunological cross-reactions between the two are rare. Nevertheless, there
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