Histatin 3 peptide
Not For Human Use, Lab Use Only.
Cat.#: 319115
Special Price 420.2 USD
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Product Name
Histatin 3 peptide
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Sequence Shortening
H-DSHAKRHHGYKRKFHEKHHSHRGYRSNYLYDN-OH
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Sequence
H-Asp-Ser-His-Ala-Lys-Arg-His-His-Gly-Tyr-Lys-Arg-Lys-Phe-His-Glu-Lys-His-His-Ser-His-Arg-Gly-Tyr-Arg-Ser-Asn-Tyr-Leu-Tyr-Asp-Asn-OH
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Length (aa)
32
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Peptide Purity (HPLC)
95.68%
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Molecular Formula
C178H258N64O48
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Molecular Weight
4062.33
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Source
Synthetic
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Form
Powder
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Description
Histatin 3 is a 32 amino acid histidine-rich peptide found in human saliva. Histatins function as antimicrobial peptides and are important components of the innate immune system. Histatin 3 has broad spectrum antimicrobial action including activity against gram positive and gram negative bacteria, fungi including Candida albicans and against the human protozoan parasite Leishania. Histatin 3 is post-translationally cleaved to form Histatin 5 and Histatin 8
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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
- Fitzgerald et al (2003) Binding, internalisation and degradation of histatin 3 in histatin-resistant derivatives of Candida albicans. FEMS Microbiol. Lett. 220(2) 247 PMID: 12670688
- Oudhoff et al (2008) Histatins are the major wound-closure stimulating factors in human saliva as identified in a cell culture assay. FASEB J. 22(11) 3805 PMID: 18650243
- Hemadi et al (2017) Salivary proteins and microbiota as biomarkers for early childhood caries risk assessment. Int. J. Oral Sci.9, e1 PMID: 29125139
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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"