Abstract
TBF‐1 is a fruitbody‐specific protein present in the white truffle species Tuber borchii Vittad. A similar protein has been found only in the closely related species Tuber dryophilum (TDF‐1), but not in other truffles. The protein from T. borchii was overexpressed as fusion protein in E. coli and was purified to homogeneity by affinity chromatography. Recombinant protein was used for generating polyclonal antibodies. The antiserum strongly reacted with TBF‐1, weakly recognized TDF‐1, and did not detect correlate band in the other white truffle species. The high level of expression of this protein in the fruitbody and the specificity of the antibody anti‐TBF‐1 make it possible to set up a diagnostic tool for detecting these species in natural samples and foodstuffs.
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