Search results
Results From The WOW.Com Content Network
Beta turns are especially common at the loop ends of beta hairpins; they have a different distribution of types from the others; type I' is the most common, followed by types II', I and II. Additional turn types have been defined by clustering turn conformations within very high-resolution protein structures. [11]
If the helix or sheet hydrogen bonding pattern is too short they are designated as T or B, respectively. Other protein secondary structure assignment categories exist (sharp turns, Omega loops, etc.), but they are less frequently used. Secondary structure is defined by hydrogen bonding, so the
A hairpin is a special case of a turn, in which the direction of the protein backbone reverses and the flanking secondary structure elements interact. For example, a beta hairpin connects two hydrogen-bonded, antiparallel β-strands (a rather confusing name, since a β-hairpin may contain many types of turns – α, β, γ, etc.).
The region-beta paradox is the phenomenon that people can sometimes recover more quickly from more distressing experiences than from less distressing ones. The hypothesized reason is that intense states trigger psychological defense processes that reduce the distress, while less intense states do not trigger the same psychological defense ...
The beta hairpin (sometimes also called beta-ribbon or beta-beta unit) is a simple protein structural motif involving two beta strands that look like a hairpin. The motif consists of two strands that are adjacent in primary structure , oriented in an antiparallel direction (the N-terminus of one sheet is adjacent to the C-terminus of the next ...
Examples of CC chemokine include monocyte chemoattractant protein-1 (MCP-1 or CCL2) which induces monocytes to leave the bloodstream and enter the surrounding tissue to become tissue macrophages. CCL5 (or RANTES ) attracts cells such as T cells, eosinophils and basophils that express the receptor CCR5 .
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
In 1938, the American psychologist Henry Murray developed a system of needs as part of his theory of personality, which he named personology.Murray argued that everyone had a set of universal basic needs, with individual differences among these needs leading to the uniqueness of personality through varying dispositional tendencies for each need; in other words, a specific need is more ...