Korea Advanced Institute of Science and Technology

Nam Su Heo

Jong Hyun Choi

Sang Yup Lee

Tae Jung Park

The present invention relates to a method for expressing a target protein on the surface of a microorganism usingexosporium protein. More particularly, to an expression vector constructed such that it comprises bclA gene encodingexosporium protein BclA or fragments thereof as a cell surface anchoring motif and the target protein can be expressed on the surface of a cell in a form fused with BclA or a fragment thereof when the gene encoding the target protein is expressed in a host cell, as well as, a method for expressing a target protein on the surface of a microorganism using the vector. The expression vector according to the present invention is capable of effectively expressing a target protein or a peptide on the cell surface using BclA,exosporium protein as a cell surface anchoring motif, and since a target protein can be stably expressed on the cell surface in large amounts by culturing a microorganism transformed with the expression vector, thus making it possible to effectively use for the various purposes of recombinant live vaccines, whole cells absorbents, whole cell bioconversion and the like.

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Daejeon, South Korea

Nam Su Heo