The crystal and molecular structures of diferric porcine and rabbit serum transferrins at resolutions of 2.15 and 2.60 Å, respectively

The X-ray structures of rabbit and porcine serum transferrins are reported at resolutions of 2.6 and 2.15 Å, respectively. The more acid-labile release of iron from serum transferrins than from lactoferrins is discussed.