Greene: Different Classes of Proteins

Egg which contains Ovalbumlin storage protein
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Hand of a Homo Sapein contains myosin and actin which are contractile proteins
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 Grapes contains Pectinases which is a kind of enzyme
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Beef contains hemoglobin which is a transport protein
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This is a photo of Insulin which is a hormone.
http://www.google.com/imgres?q=insulin&um=1&hl=en&sa=X&qscrl=1&nord=1&rlz=1T4TSNO