FIG. 3.

The NM1 complex proteins p155 and p170 are BAF-155 and BAF-170. The sequences of two peptides derived from micropeptide sequencing of gel-purified p155 (K31 and K26) and two peptides derived from p170 (K43 and K47) are represented on the top line of each pair. The sequences show near-perfect identity with the deduced amino acid sequences of BAF-155 and BAF-170, respectively, as reported by Wang et al. (50). The R value indicates the amino acid position of the first residue in the deduced BAF sequence. An uncertain reading of the peptide sequencing cycle is indicated by underlining; an unreadable cycle is indicated by an X. Identity is indicated by a dot between residues. An initial K residue, not written in the sequenced peptides, is inferred from the nature of the enzyme used in the digest (Fig. 2). A K occurs at each corresponding predicted position in the BAF proteins. Peptide sequence was obtained as described in the legend to Fig. 2.