Pia Annunen

Cloning of the Human Prolyl 4-Hydroxylase α Subunit Isoform α(II) and Characterization of the Type II Enzyme Tetramer

Pia Annunen, Tarja Helaakoski, Johanna Myllyharju et al. · Journal of Biological Chemistry · 1997 · 140 citations · Full text

Life Sciences, Biochemistry, Molecular Biology +14

The Novel Type II Prolyl 4-Hydroxylase Is the Main Enzyme Form in Chondrocytes and Capillary Endothelial Cells, whereas the Type I Enzyme Predominates in Most Cells

Pia Annunen, Helena Autio‐Harmainen, Kari I. Kivirikko · Journal of Biological Chemistry · 1998 · 108 citations · Full text

Life Sciences, Biochemistry, Cell Biology +8

Cloning, baculovirus expression, and characterization of a second mouse prolyl 4-hydroxylase alpha-subunit isoform: formation of an alpha 2 beta 2 tetramer with the protein disulfide-isomerase/beta subunit.

Tarja Helaakoski, Pia Annunen, Kristina Vuori et al. · Proceedings of the National Academy of Sciences · 1995 · 107 citations

Life Sciences, Biochemistry, Molecular Biology +9

Cloning, baculovirus expression, and characterization of the alpha subunit of prolyl 4-hydroxylase from the nematode Caenorhabditis elegans. This alpha subunit forms an active alpha beta dimer with the human protein disulfide isomerase/beta subunit.

Johanna Veijola, Peppi Koivunen, Pia Annunen et al. · Journal of Biological Chemistry · 1994 · 61 citations · Full text

Life Sciences, Biochemistry, Molecular Biology +16

ERp60 does not substitute for protein disulphide isomerase as the <i>β</i>-subunit of prolyl 4-hydroxylase

Peppi Koivunen, Tarja Helaakoski, Pia Annunen et al. · Biochemical Journal · 1996 · 45 citations · Full text

Life Sciences, Biochemistry, Molecular Biology +9