Fig. 3.

A, Amino acid sequences and percent identities of peptides derived from the 35, 25, and 18 kDa proteins immunoprecipitated with the SNAP-25 antibody from syntaxin 1-depleted bovine retina extract. Underlined residues were identified with a lower degree of certainty. B, Alignment of the peptide sequences derived from the retina 18 kDa band with the sequences of rat complexins 1 and 2 (McMahon et al., 1995). Amino acids that are not conserved between all sequences are inbold. Amino acids in the retinal 18 kDa band that differ from either or both complexins 1 and 2 are boxed.