Robert J. Nagel

Identification of the major pregnancy-specific antigens of cattle and sheep as inactive members of the aspartic proteinase family.

Shengsong Xie, Brooks Low, Robert J. Nagel et al. · Proceedings of the National Academy of Sciences · 1991 · 243 citations

Life Sciences, Animal Sciences, Biochemistry +16

A Novel Glycoprotein of the Aspartic Proteinase Gene Family Expressed in Bovine Placental Trophectoderm1

Sancai Xie, Boon G. Low, Robert J. Nagel et al. · Biology of Reproduction · 1994 · 99 citations · Full text

Life Sciences, Genetics, Molecular Biology +11

Comparative modelling and analysis of amino acid substitutions suggests that the family of pregnancy-associated glycoproteins includes both active and inactive aspartic proteinases

Kunchur Guruprasad, Tom L. Blundell, Sancai Xie et al. · Protein Engineering Design and Selection · 1996 · 89 citations · Full text

Life Sciences, Biochemistry, Molecular Biology +15

Prolactin Receptor Heterogeneity in Bovine Fetal and Maternal Tissues¹

Linda A. Schuler, Robert J. Nagel, Jie Gao et al. · Endocrinology · 1997 · 64 citations · Full text

Life Sciences, Endocrinology, Molecular Biology +15

Glycoproteins of the Aspartyl Proteinase Gene Family Secreted by the Developing Placenta

R. Michael Roberts, Sancai Xie, Robert J. Nagel et al. · Advances in experimental medicine and biology · 1995 · 31 citations

Life Sciences, Developmental Biology, Molecular Biology +11