| The notable decrease in free energy from trimer to tetramer suggested that the aggregation process was cooperative. |
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| Then we examined whether or not the quaternary structure of arrestin tetramer in solution is identical to that in crystal. |
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| Numerous studies suggest that the smallest multimer with full catalytic activity is a tetramer or an octamer. |
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| We find that the tetramer and the dimer become less stable than the monomer as the pH is lowered. |
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| The tetramer is the functional unit of hemoglobin and its constituent chains are in communication with one another. |
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| The aldolase cross-bridges are represented by ovals with the shaded oval indicating the cross-bridging tetramer and the unshaded oval indicating the decorating tetramer. |
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| On the other hand, for a system of four peptides, there are six ways to form dimers, four ways to form trimers and monomers, and only one way to form a tetramer. |
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| Because the four subunits are so closely linked, the hemoglobin tetramer is called a molecule, even though no covalent bonds occur between the peptide chains of the four subunits. |
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| A dimer, trimer or tetramer of anthracycline compound which comprises anthracycline compound or compounds, having anticancer activities, bonded directly and chemically to each other by alkali treatment. |
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| During chromatin assembly, the 2 tetramer binds first, forming a tetrasome that likely constitutes an important intermediate during ongoing transcription. |
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