Sequence comparisons of several important byssal proteins.
(a) antistasin-like protein (ALP). (b) SPI-like protein, which contains 6 repeated regions. (c) Oikosin-like protein; (d) Pernin precursor protein, which contains 3 repeated regions (Cu-Zn SODs in the red boxes). Note that the underlined regions are signal sequences. The cysteine (Cys, C) and Histidine (His, H) residues are highlighted in red and blue, respectively. Yellow areas are the identified peptides by LC-MS/MS.
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