PTD2 peptide
Not For Human Use, Lab Use Only.
Cat.#: 318961
Special Price 209.3 USD
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Product Name
PTD2 peptide
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Documents
Batch to batch variation of the purity
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Sequence Shortening
Ac-GVXRI-NH2, X is Nle
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Sequence
Ac-Gly-Val-Nle-Arg-Ile-NH2
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Length (aa)
5
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Peptide Purity (HPLC)
95.3%
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Molecular Formula
C27H51N9O6
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Molecular Weight
597.76
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Source
Synthetic
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Form
Powder
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Description
PTD2 is a peptide derived from the histone H4 sequence surrounding residue K44 (H4K44) that acts as an inhibitor of Wolf-Hirschhorn syndrome candidate 1 (WHSC1). WHSC1 (also known as NSD2 or MMSET) is a histone 3 lysine 36 (H3K36) specific methyltransferase that is responsible for mono- and dimethylation of lysine 36 on histone H3, and is frequently deleted in the genetic disorder Wolf-Hirschhorn syndrome, and has also been implicated as a driver in a variety of haematological and solid tumours. PTD2 inhibits WHSC1 in biochemical and biophysical assays with similar micromolar potencies, but demonstrates no enzymatic inhibition against a panel of other histone methyltransferases. PTD2 is a valuable tool for in vitro assay development and validation.
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Storage Guidelines
Normally, this peptide will be delivered in lyophilized form and should be stored in a freezer at or below -20 °C. For more details, please refer to the manual:Handling and Storage of Synthetic Peptides
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References
- Morrison et al (2018) Identification of a peptide inhibitor for the histone methyltransferase WHSC1. PLoS One 13(5) PMID: 29742153
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About TFA salt
Trifluoroacetic acid (TFA) has a significant impact on peptides due to its role in the peptide synthesis process.
TFA is essential for the protonation of peptides that lack basic amino acids such as Arginine (Arg), Histidine (His), and Lysine (Lys), or ones that have blocked N-termini. As a result, peptides often contain TFA salts in the final product.
TFA residues, when present in custom peptides, can cause unpredictable fluctuations in experimental data. At a nanomolar (nM) level, TFA can influence cell experiments, hindering cell growth at low concentrations (as low as 10 nM) and promoting it at higher doses (0.5–7.0 mM). It can also serve as an allosteric regulator on the GlyR of glycine receptors, thereby increasing receptor activity at lower glycine concentrations.
In an in vivo setting, TFA can trifluoroacetylate amino groups in proteins and phospholipids, inducing potentially unwanted antibody responses. Moreover, TFA can impact structure studies as it affects spectrum absorption.
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Molar Concentration Calculator
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Dilution Calculator
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Percent Concentration Calculator
Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)
Related Products / Services
• Peptide Services: NovoPro's peptide synthesis services include standard chemical peptide synthesis, peptide modification, peptide libraries, and recombinant peptide expression.
• Standard Peptide Synthesis: NovoPro offers quality peptides at the most competitive prices in the industry, starting at $3.20 per amino acid. NovoPro provides PepBox – Automatic Quote Tool for online price calculation.
• Peptide Modifications: NovoPro offers a wide range of peptide modification services including isotope labeling (2H, 15N, and 13C), multiple disulfide bonds, multiple phosphorylations, KLH, BSA, ovalbumin, amidation, acetylation, biotin, FITC, etc.
Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"