Team:Peking/Notebook/BXZhao

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   Boxuan Zhao's Notes
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My work is merging OmpA and anchor protein Lpp with metal binding domain of MerR to accomplish the goal of surface display. Additionally, I participate the functional testing of whole-cell bioabsorbents. By recognizing the homologous regions among them, I designed the metal binding domain complex for four different MerR family proteins, which can be used to verify the reasonableness of our project design.

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Contents

July

Mon Tue Wed Thu Fri Sat Sun
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[TOP]

7.4-7.11

1. PCR and Subcloning of Lpp-OmpA-MBP-MerR (LOM-MerR):

Collaboration with Junyi Jiao.

2. Promoter Analysis and Alignment of Other Proteins in Family

2-1. Search NCBI for wild type promoter for PbrR, CueR and CupR respectively.

2-2. Amino acid sequence alignment of proteins for similarity analysis.

7.12-7.18

1. Subcloning of LOM-MerR into commercial plasmid (with His-tag for localization):

Collaboration with Junyi Jiao.

2. Structure Prediction and Design of Lead Bioabsorbent:

2-1. Structure prediction and domain functional analysis of PbrR based on alignment with MerR.

2-2. MBP-PbrR design and primer design for the construction of PbrR.

7.19-7.25

1. LOM-MerR Expression:

1-1. Transform pET21a/pSB1a3-LOM-MerR into BL21(DE3), plating, overnight culture.

2-2. Pick single colony, amplify culture overnight.

2-3. Secondary amplification, grow until OD600=~0.6, add 1mM IPTG, expression 5h at 30℃.

2-4. Run SDS-PAGE, verify protein expression.

7.26-7.31

1. LOM-MerR Expression Optimization:

1-1. Transform pET21a/pSB1a3-LOM-MerR into BL21(DE3), plating, overnight culture.

2-2. Pick single colony, amplify culture overnight.

2-3. Secondary amplification, grow until OD600=~0.6, add 1mM IPTG, expression 24h at 16℃.

2-4. Run SDS-PAGE, verify protein expression.

2. Functional Test of Mercury Bioabsorbent:

Dithizone Assay:

Collaboration with Junyi Jiao.

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