You have been given a blood sample from a patient with a
bleeding disorder. You need to purify thrombin (a blood clotting
enzyme present in blood serum) so that it can be characterized.
1) The first step in the purification is to separate serum
proteins, including thrombin, from the whole cells present in the
blood sample. What method could you use for this separation? What
fraction of the resulting separation would you save?
2) You have managed to separate thrombin from all but two other
serum proteins (see the table below). You run the proteins through
an anion exchange column using a buffer at pH 6.4.
i) Which protein(s) remain(s) bound to the column?
ii) How could you elute thrombin and achieve proper
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