Eugene V. Koonin

The cytidylyltransferase superfamily: Identification of the nucleotide‐binding site and fold prediction

Chris Sander, Liisa Holm, Peer Bork, 1995, Proteins.

A superfamily of conserved domains in DNA damage‐ responsive cell cycle checkpoint proteins

Peer Bork, Philipp Bucher, S. Altschul, 1997, FASEB journal : official publication of the Federation of American Societies for Experimental Biology.