Volume 180, no. 8, p. 2118–2124, 1998. Page 2120, column 2, lines 18 to 20: “The single difference, a mutation of G to A at position 1727 that results in a change of lysine to arginine…” should read “The single difference, a mutation of G to A at position 1702 that results in a change of arginine to lysine…”
Page 2121, Fig. 1B: Nucleotides labeled 601 to 630 were accidentally transposed to this site. This sequence of 30 nucleotides should instead be inserted after site 750. The translated amino acid sequence, numbering system, and GenBank sequence remain unchanged.