Lactoferrin proteolytic fragments

Complementing the structural studies of the intact transferrins, a number of fragments have also been crystallized, including proteolytic N-terminal half-molecules of rabbit serum transferrin (69) and chicken ovotransferrin (70), recombinant N-terminal half-molecules of human lactoferrin (71) and human serum transferrin (72), and a quarter-molecule fragment of duck ovotransferrin (73). All of these have now led to high-resolution structures (74-77). 

Coordinates for human lactoferrin, in both diferric (78) and apo- (80) forms, for diferric rabbit serum transferrin (68), and for the three fragment structures, the proteolytic N-lobe of rabbit serum transferrin (74), the recombinant N-lobe of human lactoferrin (75) and the duck ovotransferrin quarter-molecule (76), all in their iron-bound forms, can be obtained from the Brookhaven Protein Data Bank (Brookhaven National Laboratory, Upton, New York). 

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