FIG. 2.

Comparison of amino acid sequences for actual and predicted 39-kDa products. The LysC peptide fragments of the 39-kDa protein are presented on the top line. Question marks indicate sequence ambiguity at the specific cycle position. By the numbering system used in the figure, the peptides sequenced correspond to (i) Met¹ to Arg⁴¹, (ii) Pro¹³² to Lys¹⁶⁶, (iii) Thr¹⁷⁴ to Ala²²⁰, (iv) Ala²⁶⁶ to Lys²⁹⁶, (v) His²⁹⁷ to Lys³¹¹, (vi) Val³¹² to Asn³⁴¹, and (vii) Arg³⁴⁶ to Gln³⁷¹. The sequences are aligned for best fit, with possible gaps or deletions between proteins indicated by dashed lines. Conserved sequences are shaded, the apparent variable regions (six are identified) are underlined (solid bar) and numbered, and apparent hydrophobic regions are underlined (broken bar).