It consists of 439
residues (including the first methionine), corresponding to a
48,948-Da polypeptide with a theoretical pI of 5.79. By peptidemass fingerprinting using MALDI-MS, we were able to assign
SstK10 to the major 46-kDa type IE keratin of our previously
elaborated shark keratin catalog (Table 2 and (Schaffeld et al.,
1998)).