FIG. 1.

Sequences of peptides obtained from the microsequencing of p270. Left column, sequences of four peptides derived from the peptide sequencing of gel-purified p270 isolated from human cells; middle column, sequence of the multiple-antigen peptide (map) that was used to raise the p270-specific antibodies used in the cloning; right column, sequences of the corresponding regions deduced from the p270 cDNA clone, with the position number of the initial residue indicated for reference to Fig. 3. X represents uncertainty in reading the protein sequence. The underlining indicates a single discrepancy between the sequence obtained by direct sequencing and that obtained by sequencing the cDNA.