Research Article
Are Ancient Durum Wheats Less Toxic to Celiac Patients? A Study
of α-Gliadin from Graziella Ra and Kamut
Table 2
p31–49, DQ2-Glia-α1, DQ2-Glia-α2, DQ2-Glia-α3, and DQ8-Glia-α1 epitopes variants detected in durum wheats under study.
| Accession | Locus | p31–49 | DQ2-Glia-α1 | DQ2-Glia-α2 | DQ2-Glia-α3 | DQ8-Glia-α1 |
| Cappelli_L | Gli-A2 | cs | cs | PQPQLPYSQ | cs | QVSFQPSQLN | Cappelli_S | Gli-A2 | LGQQQPFPPQQPYPQPQTF | PFPQPQLPH | PQPQLPHSQ | FRPQQPISQ | QGSFRPSQQN |
| Flaminio_L | Gli-B2 | PGQQQQFPPQQPYPQPQPF | PFP-PQLPY | P-PQLPYPQ | FPPQQPYPQ | QVSFQPSQLN | Flaminio_S | Gli-B2 | PGQQQPFPPQQPYPQPQPF | PFP-PQLPY | P-PQLPYPQ | FSPQQPYPQ | cs |
| Grazia_L | Gli-B2 | PGQQQQFPPQQPYPQPQPF | PFP-PQLPY | P-PQLPYPQ | FPPQQPYPQ | QVFFQPSQLN | Grazia_S | Gli-A2 | LGQQQQFPPQQPDPQPQPF | cs | PQPQLPYSQ | FRPQQPYLQ | QGFFRPSQQN |
| Graziella_L | Gli-B2 | PGQQQPFPPQQPYPQPQPF | PFP-PQLPY | P-PQLPYPQ | FPTQQPYPQ | QVSFQPSQLN | Graziella_S | Gli-B2 | PGQQQPFPPQQPYPQPQPF | PFP-PQLPY | P-PQLPYPQ | FPTQQPYPQ | QGSFQPSQLN |
| Kamut_L | Gli-B2 | PGQQQQFPPQQPYPQPQPF | PFP-PQLPY | P-PQLPYPQ | FPPQQPYPQ | QVSFQPSQLN | Kamut_S | Gli-A2 | LGQQQPFPPQQPYPQAQPF | cs | PQPQLPYSQ | cs | QGSFWPSQQN |
| Svevo_L | Gli-B2 | PGQQQQFPPQQPYPQPQPF | PFP-PQLPY | P-PQLPYPQ | FPPQQPYPQ | QVSFQPSQLN | Svevo_S | Gli-B2 | PGQQQQFPPQQPYPQPQPF | PFP-PQLPY | P-PQLPYPQ | FSPQQPYPQ | QGFFQPSQQN |
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Canonical sequences (cs), p31–49: L1G2Q3Q4Q5P6F7P8P9Q10Q11P12Y13P14Q15P16Q17P18F19; DQ2-Glia-α1: P1(F/Y)2P3Q4P5Q6L7P8Y9; DQ2-Glia-α2: P1Q2P3Q4L5P6Y7P8Q9; DQ2-Glia-α3: F1R2P3Q4Q5P6Y7P8Q9; DQ8-Glia-α1: Q1G2S3F4Q5P6S7Q8Q9N10. In bold underlined: aminoacid substitution; hyphen: aminoacid deletion.
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