↑PDB: 1AAM Almo SC, Smith DL, Danishefsky AT, Ringe D (March 1994). „The structural basis for the altered substrate specificity of the R292D active site mutant of aspartate aminotransferase from E. coli“. Protein Eng. 7 (3): 405–412. doi:10.1093/protein/7.3.405. PMID7909946.CS1-одржување: повеќе имиња: список на автори (link)