^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Engel W, Keime S, Kremling H, Hameister H, Schluter G (Nov 1992). "The genes for protamine 1 and 2 (PRM1 and PRM2) and transition protein 2 (TNP2) are closely linked in the mammalian genome". Cytogenet Cell Genet. 61 (2): 158–9. doi:10.1159/000133397. PMID1395729.
Schlüter G, Kremling H, Engel W (1992). "The gene for human transition protein 2: nucleotide sequence, assignment to the protamine gene cluster, and evidence for its low expression". Genomics. 14 (2): 377–83. doi:10.1016/S0888-7543(05)80229-0. PMID1385303.
Kundu TK, Rao MR (1995). "DNA condensation by the rat spermatidal protein TP2 shows GC-rich sequence preference and is zinc dependent". Biochemistry. 34 (15): 5143–50. doi:10.1021/bi00015a027. PMID7711033.
Kundu TK, Rao MR (1997). "Zinc dependent recognition of a human CpG island sequence by the mammalian spermatidal protein TP2". Biochemistry. 35 (49): 15626–32. doi:10.1021/bi961271i. PMID8961924.