C. Piening

Phosphorylation of the beta subunit of casein kinase II in human A431 cells. Identification of the autophosphorylation site and a site phosphorylated by p34cdc2.

E. Krebs, D. Litchfield, L. Ericsson, 1991, The Journal of biological chemistry.

Subunit structure of casein kinase II from bovine testis. Demonstration that the alpha and alpha' subunits are distinct polypeptides.

E. Krebs, D. Litchfield, J. Sommercorn, 1990, The Journal of biological chemistry.

Isolation and characterization of human cDNA clones encoding the alpha and the alpha' subunits of casein kinase II.

E. Krebs, D. Litchfield, K. Takio, 1990, Biochemistry.

Neutral metalloprotease from tendons

M. A. Riederer-Henderson, C. Piening, 1989, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.