Acceptor:Donor | Transgalactosylation products | MNa+ Theoretical (Da) | MNa+ observed (Da) |
---|---|---|---|
(ONP-β-Gal: ONP-β-Gal) | 1. (ONP-β-Gal + Gal) Na+ | 486.408 | 486.142 |
2. (ONP-β-Gal + 2 Gal) Na+ | 648.565 | 648.205 | |
3. (ONP-β-Gal + 3Gal) Na+ | 810.722 | 810.277 | |
(ONP-β-Gal/PNP-β-Glu: ONP-β-Gal) | 1. (ONP-β-Gal/PNP-β-Glu + Gal/Glu) Na+ | 486.408 | 486.150 |
2. (ONP-β-Gal/PNP-β-Glu + 2Gal/2Glu) Na+ | 648.565 | 648.224 | |
(PNP-β-Xyl:ONP-β-Gal) | 1. (ONP-β-Gal + Gal) Na+ | 486.408 | 486.159 |
2. (ONP-β-Gal + 2Gal) Na+ | 648.565 | 648.195 | |
3. (PNP-β-Xyl + Gal) Na+ | 456.382 | 456.146 | |
4. (PNP-β-Xyl + Gal + Gal) Na+ | 618.539 | 618.211 | |
(D-Lactose:D-Lactose) | 1. (Lactose + Gal) Na+ | 527.477 | 527.202 |