http://www.w3.org/ns/prov#value | - X???(R1)m???(R2)???(R3)n???Y wherein, at the amino terminus, X is hydrogen, and at the carboxyl terminus, Y is hydrogen or a metal, R1 and R3 are any amino acid residue, m is an integer between 1 and 1000 or zero, n is an integer between 1 and 1000 or zero, and R2 is an amino acid sequence of the invention, particularly an amino acid sequence selected from Table 1.
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