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Mussel Protein

Expressing proteins on E coli cell membranes

OmpX

[J., Welch, R., Erickson, J.W., and Gross, C.A. 1995. Identification and characterization of an outer membrane protein, OmpX, in Escherichia coli that is homologous to a family of outer membrane proteins including Ail of Yersinia enterocolitica. J. Bacteriol. 177: 799–804.Acad. Sci. 98: 3750–3755. Wittrup, K.D. 2001. Protein engineering by cell-surface display. Curr. Opin. Biotechnol. 12: 395–399.]

[|OmpX sequence]

Sequence

1. Native SS

    MKKIACLSALAAVLAFTAGTSVA 

2. Embedded SfiI restriction site

    GQSGQ 

3. Passenger Peptide

    XXXXXXXXXXXXXX 

4. Sequence

    GGQSGQ  

5. S54-F148

    SGDYNKNQYYGITAGPAYRINDWASIYGVVGVGYGKFQTTEYPTYKHDTSDYGFSYGAGLQFNPMENVALDFSYEQSRIRSVDVGTWIAGVGYRF 

6. Join native C and N

    GGSG 

7. A1-S53

    ATSTVTGGYAQSDAQGQMNKMGGFNLKYRYEEDNSPLGVIGSFTYTEKSRTAS 

Papers!

1. Samuelson P, Wernérus H, Svedberg M, and Ståhl S. Staphylococcal surface display of metal-binding polyhistidyl peptides. Appl Environ Microbiol. 2000 Mar;66(3):1243-8. DOI:10.1128/AEM.66.3.1243-1248.2000 |
2. Kotrba P, Dolecková L, de Lorenzo V, and Ruml T. Enhanced bioaccumulation of heavy metal ions by bacterial cells due to surface display of short metal binding peptides. Appl Environ Microbiol. 1999 Mar;65(3):1092-8. DOI:10.1128/AEM.65.3.1092-1098.1999 |