Revision as of 05:07, 5 September 2024

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Usage

nickel-binding peptide 2 (NBP2) is a nickel-binding peptide. It can bind Ni(II) specificaly. We display it with Pichia pastoris through cell-surface display systems.

Biology

NBP2 is selected from Phage Display Library Screening: The Ph.D.-12 peptide library kit (E8110S, New England Bio Labs, USA). A study has shown that the sorption of nickel ions on the surface of yeast cells increased with the increasing number of nickel Ni(II)-binding peptides displayed. The combined expression of the three peptides(NBP1+NBP2+NBP3) by EBY100/pYD1-N123 demonstrated the highest sorption of Ni(II) (2.603 ± 0.004 g g−1, dry weight) and an enhanced sorption capacity of 60.15%, compared to S. cerevisiae EBY100[1].

Prediction

We used the MLatom calculation program on the XACS platform to perform structural calculations of the binding between metal ion binding peptides and metal ions, in order to predict the binding ability. The results are as follows:

Reference

[1]Li H, Dong W, Liu Y, et al. Enhanced Biosorption of Nickel Ions on Immobilized Surface-Engineered Yeast Using Nickel-Binding Peptides[J]. Front Microbiol, 2019,10:1254.

Sequence and Features