Electrophoretical and biochemical characteristics of amylase in the extracts of lung tissues were investigated.
Amylase activity in the extracts of the diseased lung tissues was significantly higher than in the normal lung tissues. However, electrophoretical properties of amylase in these tissues were revealed to be the same as salivary amylase on polyacrylamide gel electrophoresis.
Heat treatment at 56°C demonstrated that amylase in the extracts of lung tissues was more stable than that of saliva or pancreatic juice.
Amylase activity in saliva and the extracts of lung tissues was suppressed similarly by rabbit antiserum against human salivary amylase.
Km value of amylase in the extracts of lung tissues for Blue Starch was almost same as that of saliva, indicating that both have the same enzymatic nature.
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