DeltaMass delta-hydroxy-allysine (Lys) From DeltaMass: Average Mass: 15 Average Mass Change:15 Notes:In going from Lys to hydroxy-allysine, two separate reactions are involved:1. the oxidative deamination converting Lys to allysine (-CH2NH2 being converted to -CHO) with a net mass change of -1;2.conversion of allysine to delta-hydroxy-allysine (-CH2-CHO being converted to -CH(OH)-CHO) with a mass change of +16. The net change from Lys to hydroxyallysine thus is +15. K MOD:00970 PSI-MOD modification from DeltaMass natural