obsolete peptidyl-aspartic acid hydroxylation to form L-erythro-beta-hydroxyaspartic acid (obsolete GO:0019715)
OBSOLETE. The hydroxylation of peptidyl-aspartic acid to form peptidyl-L-erythro-beta-hydroxyaspartic acid; catalyzed by peptide-aspartate beta-dioxygenase (EC:1.14.11.16).