Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

A3227

Sigma-Aldrich

Ala-Tyr-Pro-Gly-Lys-Phe-NH2 trifluoroacetate salt

≥98% (HPLC), lyophilized powder, PAR4 agonist

Synonym(s):

AYPGKF-NH2, PAR4-AP

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C34H48N8O7 · xC2HF3O2
CAS Number:
1228078-65-6
Molecular Weight:
680.79 (free base basis)
MDL number:
MFCD04974484
UNSPSC Code:
12352202
PubChem Substance ID:
329770819
NACRES:
NA.77

product name

Ala-Tyr-Pro-Gly-Lys-Phe-NH2 trifluoroacetate salt, ≥98% (HPLC), lyophilized powder

Quality Level

100

Assay

≥98% (HPLC)

form

lyophilized powder

color

white

solubility

H2O: >10 mg/mL

storage temp.

−20°C

SMILES string

OC(=O)C(F)(F)F.C[C@H](N)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N2CCCC2C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](Cc3ccccc3)C(N)=O

InChI

1S/C34H48N8O7.C2HF3O2/c1-21(36)31(46)41-27(19-23-12-14-24(43)15-13-23)34(49)42-17-7-11-28(42)33(48)38-20-29(44)39-25(10-5-6-16-35)32(47)40-26(30(37)45)18-22-8-3-2-4-9-22;3-2(4,5)1(6)7/h2-4,8-9,12-15,21,25-28,43H,5-7,10-11,16-20,35-36H2,1H3,(H2,37,45)(H,38,48)(H,39,44)(H,40,47)(H,41,46);(H,6,7)/t21-,25-,26-,27-,28-;/m0./s1

InChI key

BGPJLFVICWHITH-HKJXYENISA-N

Amino Acid Sequence

Ala-Tyr-Pro-Gly-Lys-Phe-NH2

General description

Ala-Tyr-Pro-Gly-Lys-Phe-NH2 (AYPGKF- NH2) is a selective, specific proteinase-activated receptor 4 (PAR4) agonist peptide. PAR4 is a G-protein-coupled receptor that is expressed on the surface of human platelets and is involved in the thrombin signaling pathway. Cleavage of PAR4 by the protease thrombin stimulates the receptor and results in signaling of platelet aggregation.

Application

4-Androsten-11β-ol-3,17-dione has been used in platelet aggregation.
AYPGKF- NH2 may be used for probing PAR4 signaling in culture systems and in platelets.

Biochem/physiol Actions

AYPGK is a ligand for the PAR4 receptor; binding results in activation of PAR4. AYPGK stimulates platelet aggregation in vitro (EC50 =15 μM) via PAR4. In human platelets treated with the PAR4 agonist, AYPGKF stimulates the production of thromboxane, a potent agent for platelet-aggregation. Additionally, AYPGKF mediates the thrombin-induced release of endostatin from rat platelets.

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Frederic Lagarrigue et al.
Blood, 136(10), 1180-1190 (2020-06-11)
Ras-related protein 1 (Rap1) is a major convergence point of the platelet-signaling pathways that result in talin-1 binding to the integrin β cytoplasmic domain and consequent integrin activation, platelet aggregation, and effective hemostasis. The nature of the connection between Rap1
Seema Bhatlekar et al.
Haematologica, 104(10), 2075-2083 (2019-02-09)
Apoptosis is a recognized limitation to generating large numbers of megakaryocytes in culture. The genes responsible have been rigorously studied in vivo in mice, but are poorly characterized in human culture systems. As CD34-positive (+) cells isolated from human umbilical
B Batman et al.
Vox sanguinis, 112(8), 773-779 (2017-09-30)
Prophylactic platelet transfusions are administered to prevent bleeding in haemato-oncological patients. However, bleeding still occurs, despite these transfusions. This practice is costly and not without risk. Better predictors of bleeding are needed, and flow cytometric evaluation of platelet function might
Ruth Ann Henriksen et al.
Arteriosclerosis, thrombosis, and vascular biology, 22(5), 861-866 (2002-05-15)
Previous reports have indicated that thrombin-induced thromboxane production by human platelets occurs through two types of interaction between thrombin and the platelet surface. One of these interactions is with protease activated receptor(PAR)-1, the first identified thrombin receptor. These studies were
Lei Jiang et al.
British journal of cancer, 117(5), 695-703 (2017-07-12)
Selective platelet release of pro- or anti-angiogenic factors distinctly regulated angiogenesis. We hypothesised that selective release of platelet angiogenic factors could differently regulate tumour growth. Breast cancer cell proliferation, cancer cell-induced endothelial tube formation in vitro, and tumour growth in
View All Related Papers

Articles

Bioactive Molecules for Immunology Research

Bioactive small molecules for immune system signaling target identification/validation and antibiotics, antivirals, and antifungals offered.

Bioactive Molecules for Immunology Research

Bioactive small molecules for immune system signaling target identification/validation and antibiotics, antivirals, and antifungals offered.

Bioactive Molecules for Immunology Research

Bioactive small molecules for immune system signaling target identification/validation and antibiotics, antivirals, and antifungals offered.

Bioactive Molecules for Immunology Research

Bioactive small molecules for immune system signaling target identification/validation and antibiotics, antivirals, and antifungals offered.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service