quaternary structure

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quaternary structure

The three-dimensional arrangement of the macromolecules making up a functional unit, such as that formed by four globin protein molecules to make hemoglobin or by histones interacting with DNA to make a nucleosome.

References in periodicals archive ?

SWISS-MODEL: Modelling protein tertiary and quaternary structure using evolutionary information.

In Silico Analyses of the Pseudogenes of Helicobacter pylori

There are two major categories of proteins with quaternary structure - fibrous and globular.

Analyzing the structure of protein synthesis and transcription

Despite this, says Ahnert, the organizing principles that underlie protein quaternary structure in nature are poorly understood.

A periodic table of proteins: researchers have devised a periodic table of proteins, bringing order and visual understanding to the messy world of protein complexes

The treatment of protein structure in many introductory textbooks, however, is cursory and focuses on the relationships among primary, secondary, tertiary, and quaternary structure without a clear link to how these levels of organization contribute to functional aspects of the protein.

Modeling protein structure & function: pencil transferase

It is noteworthy that quaternary structure is essential for CTB function, but this is impossible in some expression systems (9), (11), (15).

Production of pentameric cholera toxin B subunit in Escherichia coli

This time he focuses upon The School of Athens and the quaternary structure of Quixote's first part.