As we promised not to give any quantitative estimation based on molecular ion mass peak intensity, we can only comment that these structures could be molecules that are preferably formed as (a) and (c), or are presumably stable diquinones like (b), which gave the third intensive mass peak (the structure marked as 2XZ trimeric qq) in the reaction mixture of 2,5-dimethylresorcinol together with resorcinol after the dimeric monoquinone marked as XZ dimeric rq and tetrameric
monoquinone marked as 2X2Z tetrameric
Due to obvious complications in explicit kinetic modelling of a cooperatively regulated bi-substrate reaction catalysed by tetrameric
enzyme, the kinetic data were analysed proceeding from the rate equation for a non-cooperative bisubstrate random-order enzymatic reaction , where the reactive complex involves the enzyme, ADP, and PEP.
So they looked at polyhaemoglobin, saw that it maintained its tetrameric
form and hence had a good half-life, but suffered because of its high oxygen affinity.
which suggested that 7 was also a tetrameric
proanthocyanidin possessing one doubly linked structure.
The DsRed-Monomer fluorescent protein is a highly engineered monomeric form of the normally tetrameric
Immunohistochemistry and in situ hybridization were performed using pigeon and rat brains to investigate the localization of the subunits which constitute the tetrameric
structure of these receptors within the oculomotor nuclear complex (CNIII).
The Elongin pair, together with the CUL2 and RBX1 proteins, forms a tetrameric
unit characterized as a mammalian E3 ligase, targeting proteins for ubiquitination and subsequent degradation.
19-24) Indeed, as a result of attempts to disprove the warped zipper model researchers, including one of the inventors of the warped zipper itself, have discovered that DNA can exist not just in helices formed of antiparallel pairs of strands, but also as parallel strands, as right-handed or left-handed helices, and even as triplex and tetrameric
complexes, all of which are thought to have fundamental regulatory properties within chromosomes.
The IR is a tetrameric
protein consisting of two identical extracellular [alpha]ts and two identical transmembrane [beta]its that have intracellular tyrosine kinase activity (Goldfine 1987; Moller and Flier 1991).
In this ranking, note also that concentration is expressed as the concentration of noncovalently bound subunits, so that a tetrameric
protein such as transthyretin has a 4-fold higher concentration.
ISIS 5320 forms a stable tetrameric
structure which directly interacts with the gp120 protein envelope glycoprotein of HIV and prevents the critical interaction of gp120 with the CD4 receptor on human target cells.
Results indicate that stable silicon and carbon bridged dimeric and tetrameric
structures can be found but no stable silyl bridged hexamer has yet been found.