Histatin-3/HTN3 Protein, Human

The Histatin-3/HTN3 protein is a key salivary component and a major precursor in the formation of the enamel film on the tooth surface. In addition to its structural role, histatin-3 also exhibits antibacterial and antifungal activity, particularly through its His3-(20-43)-peptide (histatin-5). Histatin-3/HTN3 Protein, Human is the recombinant human-derived Histatin-3/HTN3 protein, expressed by E. coli , with tag free.

Histatin-3/HTN3 Protein, a vital component of salivary proteins, plays a crucial role as a major precursor in the formation of the protective proteinaceous structure on tooth surfaces, known as the enamel pellicle. Beyond its structural function, histatin-3 exhibits notable antibacterial and antifungal activities, with its His3-(20-43)-peptide (histatin-5) demonstrating particular efficacy against C. albicans and C. neoformans, while also inhibiting Lys-gingipain and Arg-gingipain (rgpB) from P. gingivalis. This peptide additionally serves as a potent inhibitor of metalloproteinases MMP2 and MMP9. Intriguingly, the His3-(20-43)-peptide exists as a homodimer. Histatin-3, along with its His3-(20-43)-peptide counterpart, interacts with yeast SSA1 and SSA2 proteins, emphasizing its multifaceted roles in host defense and oral health.

Human

E. coli

Tag Free

P15516 (D20-N51)

3347  [NCBI]

Full Length of Mature Protein

DSHAKRHHGYKRKFHEKHHSHRGYRSNYLYDN

10-12 kDa

Greater than 95% as determined by reducing SDS-PAGE.

Solution.

Supplied as a 0.2 μm filtered solution of PBS, pH 7.4.

<1 EU/μg, determined by LAL method.

Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.

Shipping with dry ice.