biology question?

Each alpha and beta subunits of hemoglobin bind an oxygen molecule. the joining of these 4 subunits is essential to hemoglobin function. what level of protein structure is this describing? primary secondary tertiary or quaternary structure of a protein?

2 Answers

  • Anonymous
    3 weeks ago

    4 subunits = QUATernary (or so you'd think)  Because there are 2 alpha and 2 beta subunits, there are only 2.  Add in the joiner chain (J) and there are 3, making Hgb a tertiary

  • 4 weeks ago

    Quaternary structure of a protein describes how multiple polypeptides of a protein molecule interact with each other.

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