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| PR:000033057 | prokaryotic-type phenylalanine--tRNA ligase alpha subunit | | |  | | |
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| PR:A5I6L1 | phenylalanine--tRNA ligase alpha subunit (Clostridium botulinum A str. Hall) | | |  | | |
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| PR:P08312 | phenylalanine--tRNA ligase alpha subunit (Escherichia coli K-12) | | |  | | |
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| PR:Q2FZD9 | phenylalanine--tRNA ligase alpha subunit (Staphylococcus aureus subsp. aureus NCTC 8325) | | |  | | |
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| PR:Q5SGX2 | phenylalanine--tRNA ligase alpha subunit (Thermus thermophilus HB8) | | |  | | |