Task: Answer Verification
Input (English): Question: Are blood serum immunoglobulins of patients with multiple myeloma capable of hydrolysing histone H1?
Answer: We demonstrated the existence of previously unknown histone H1 hydrolyzing IgG abzymes in the serum of multiple myeloma patients. Possible biological role of hisH1-hydrolyzing antibodies in patients with multiple myeloma was discussed.
Output (English): yes