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Cooperativity in Biological News

Hemoglobin uncovered

... of study have led to the knowledge that hemoglobin uses mechanisms of cooperativity to optimize its function; that is to say, to collect the greatest amount ... possible in the lungs and release it in tissues. These mechanisms of cooperativity are related to changes in the structure of the hemoglobin protein. ...

Immune cell communication key to hunting viruses, Jefferson immunologists show

... able to see something no one had seen before ?a very strong contribution of non-viral peptide-MHC interaction with a co-receptor," he says. "Such cooperativity we think can be achieved when MHC complexes are close to each other. "We've shown that when we try to mimic the positioning of MHC protein on ...
Cooperativity in Biological Definition

Cooperativity

... cooperativity is a phenomenon in biology displayed by enzymes or receptors that have multiple binding sites . When substrate bonds to the active site ...

Lambda phage

... OR1, OR2, and OR3, in the order OR1 > OR2 > OR3. Binding of a cI dimer to OR1 enhances binding of a second cI dimer to OR2, an effect called cooperativity . Thus, OR1 and OR2 are almost always simultaneously occupied by cI. However, this does not increase the affinity between cI and OR3, which will ...

Long-term potentiation

... Annu Rev Neurosci. 2000;23:649-711. PMID 10845078 McNaughton BL, Douglas RM, Goddard GV. "Synaptic enhancement in fascia dentata: cooperativity among coactive afferents." Brain Res. 1978 Nov 24;157(2):277-93. PMID 719524 Murphy GG, Glanzman DL. "Enhancement of sensorimotor ...

Quaternary structure

... nucleosomes and microtubules . Changes in quaternary structure are called conformational changes . It is through such changes, which underlie cooperativity and allostery in "multimeric" enzymes, that many proteins undergo regulation and perform their physiological function. The above definition ...

Structural biology

... structure , secondary structure , tertiary structure , quaternary structure , structural domain , structural motif , protein subunit , cooperativity , chaperonin , structural genomics , Important publications in structural biology External links Nature: Structural & ...
Cooperativity in Biological Dictionary

Cooperativity

... cooperativity is a phenomenon in biology displayed by ... referred to as cooperative binding. We also see cooperativity in large chain molecules made of many identical ... is referred to as ... 2 Mechanisms of cooperativity . 3 Additional information. 4 See also. 5 ... ...

Allostery

... between the CT-L and the PGPH ... 3.2 Methods that measure the size of the intact complex directly ... through such changes, which underlie cooperativity and allostery in "multimeric" ... Dynamics of Biomedical Molecules in Vision, Allostery , and Folding ... Allostery down regulates the ...
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(Date:10/17/2014)... This news release is available in German . ... need millions of sperms every day in order to reproduce? ... questions are the topic of the latest issue of the ... 16th, 2014). The evolutionary biologist Steven Ramm from Bielefeld University ... nature, it is not unusual for a female to copulate ...
(Date:10/16/2014)... war on the human body. Battles are won, ... pancreatic cancer, this stalemate—known as tumor dormancy—can last ... a phenomena that is poorly understood. , ... of Salvatore Torquato, a Professor of Chemistry at ... tumor dormancy and the switch to a malignant ...
(Date:10/16/2014)... challenged conventional thinking on how the bowel lining develops ... how bowel cancer starts. , The researchers produced evidence ... the ,crypts, that are a feature of the bowel ... bowel cancer development, a controversial finding as scientists are ... 3D imaging technologies, Dr Chin Wee Tan and Professor ...
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