Give an example quaternary structure protein with brief description

1.	Give an example quaternary structure protein with brief description
Answer» Many\xa0proteins\xa0are actually assemblies of multiple polypeptide chains. The\xa0quaternary structure\xa0refers to the number and arrangement of the\xa0protein\xa0subunits with respect to\xa0one\xa0another.\xa0Examples\xa0of\xa0proteins\xa0with\xa0quaternary structure\xa0include hemoglobin, DNA polymerase, and ion channels.

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