Fig. 3. The complete sequence of calpain M cDNA from land crab (Gl-CalpM). The
sequence (2531 bp) contained a full open reading frame (2201896 bp)
encoding a protein of 558 amino acids with a predicted mass of 65.23 kDa
(GenBank accession #AY639152). Locations of degenerate primer sites for
initial nested RT-PCR are underlined. Three amino acid residues comprising the
conserved catalytic triad (C, H, N) in domain II are in bold. The asterisk
indicates the stop codon. The poly(A) signal in the 3' UTR is in bold
and underlined. The arrow indicates the position of a putative alternative
splicing site that produces a truncated isoform (Gl-CalpM'; GenBank
accession #AY644674).