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Alignment of the first 60 amino acids of gp37 with other bacteriophage equivalent proteins as identified by BLAST-P. Asterisks indicate positions that are identical in all sequences, black highlighting indicates the amino acid that is present in ≥50% of the sequences, gray highlighting indicates conserved substitutions in >50% of the sequences (Henikoff and Henikoff 1992; Riek et al. 2007)
