Bar G, et al. (2001) High-frequency (140-GHz) time domain EPR and ENDOR spectroscopy: the tyrosyl radical-diiron cofactor in ribonucleotide reductase from yeast. J Am Chem Soc 123(15):3569-76 PMID:11472128
Ge J, et al. (2001) Why multiple small subunits (Y2 and Y4) for yeast ribonucleotide reductase? Toward understanding the role of Y4. Proc Natl Acad Sci U S A 98(18):10067-72 PMID:11526232
Nguyen HH, et al. (1999) Purification of ribonucleotide reductase subunits Y1, Y2, Y3, and Y4 from yeast: Y4 plays a key role in diiron cluster assembly. Proc Natl Acad Sci U S A 96(22):12339-44 PMID:10535923