(en) Aasland R, Abrams C, Ampe C, Ball L. (2002). Normalization of nomenclature for peptide motifs as ligands of modular protein domains. FEBS Letters513 (1): 141–144. ISSN: 1873-3468. DOI: 10.1016/S0014-5793(01)03295-1.
(en) Khoury GA, Baliban RC, Floudas CA (2011). Proteome-wide post-translational modification statistics: frequency analysis and curation of the swiss-prot database. Scientific Reports1: 90. PMID22034591. PMC3201773. DOI: 10.1038/srep00090.
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(en) Aasland R, Abrams C, Ampe C, Ball L. (2002). Normalization of nomenclature for peptide motifs as ligands of modular protein domains. FEBS Letters513 (1): 141–144. ISSN: 1873-3468. DOI: 10.1016/S0014-5793(01)03295-1.