Protein structure
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Structure of DNA repair protein XRCC4聽 aka聽X-ray repair cross-complementing protein 4
XRCC4 protein is a聽TETRAMER that resembles the shape of a DUMBBELL containing two globular ends separated by a long, thin stalk. The tetramer is composed of two聽dimers, and each dimer… Read more.
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Pterion and Pteron Notes
The pterion is the region where the frontal, parietal, temporal, and sphenoid bones join. It is located on the side of the skull, just behind the temple. Structure The pterion is located in the temporal fossa, approximately 2.6 cm behind and 1.3 cm… Read more.
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Protein secondary structure
Protein secondary structure聽is the three dimensional聽form聽of聽local segments聽of聽proteins. The two most common聽secondary structural elements聽are聽alpha helices聽and聽beta sheets, though聽beta turns聽and聽omega loops聽occur as well. Secondary structure elements typically spontaneously form as an intermediate before… Read more.
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Turn (biochemistry)
For beta turns, see Beta turn. A turn is an element of secondary structure in proteins where the polypeptide chain reverses its overall direction. Definition According to one definition, see Rose et al. 1985 in… Read more.
