Table 3.
Specificity groups identified and their consensus motifs of P1 and P2 determined from characterized CDPSs.
| Specificity group (*) | Consensus motif for P1 | Consensus motif for P2 |
|---|---|---|
| cWW (NYH) (9 / 22) | ![]() |
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| cLL (NYH) (10 / 123) | ![]() |
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| cCC (NYH) (11 / 60) | ![]() |
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| cAE (XYP) (8 / 55) | ![]() |
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| cYY (NYH) (6 / 145) | ![]() |
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| cFX (NYH) (8 / 31) | ![]() |
|
| cW2X (NYH) (7 / 34) | ![]() |
|
| cPX (NYH) (5 / 9) | ![]() |
|
| cLE (XYP) (2 / 19) | ![]() |
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| cGE (XYP) (1 / 7) | ![]() |
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| cAA (XYP) (2 / 33) | ![]() |
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| cGG (XYP) (1 / 17) | ![]() |
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| cLI/cLL (XYP) (4 / 34) | ![]() |
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| cCX (NYH) (12 / 61) | ![]() |
|
| cW1X (NYH) (12 / 36) | ![]() |
|
| cXE (XYP)a (9 / 81) | ![]() |
|
| cAX (XYP)a (10 / 88) | ![]() |
Specificity groups are named according to the main cyclodipeptide synthesized; the family NYH or XYP of the CDPSs forming the group is indicated. The numbers in brackets (*) correspond to the number of CDPSs experimentally characterized vs. the total number of CDPSs in the group (Last up-date: June 2017). Groups for which less than five CDPSs have been experimentally characterized are labeled in blue. Sequence motifs correspond to residues suspected to delineate P1 and P2, determined for each CDPS (see Supplemental Data Set 4 and Table S2). They are presented as logo, corresponding to the frequency plot of amino acid at the different positions of P1 and P2 for characterized enzymes of the specificity group (see also Table S2 for comparison with logos obtained with enzymes of the whole specificity group). Degenerated positions are indicated in gray, amino acids likely to be essential for specificity are indicated in red.
The consensus motif for cXE was obtained using cAE, cLE and cGE groups of CDPSs, that for cAX was obtained using cAE and cAA groups.


























