Evan E. Bolton, Yanli Wang, Paul A. Thiessen, Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry4: 217-241. DOI:10.1016/S1574-1400(08)00012-1.
Gogia, S.; Balaram, H.; Puranik, M. (May 2011). „Hypoxanthine guanine phosphoribosyltransferase distorts the purine ring of nucleotide substrates and perturbs the pKa of bound xanthosine monophosphate.”. Biochemistry50 (19): 4184-93. DOI:10.1021/bi102039b. PMID21486037.
Gogia, S.; Balaram, H.; Puranik, M. (May 2011). „Hypoxanthine guanine phosphoribosyltransferase distorts the purine ring of nucleotide substrates and perturbs the pKa of bound xanthosine monophosphate.”. Biochemistry50 (19): 4184-93. DOI:10.1021/bi102039b. PMID21486037.