نتایج جستجو برای: pair complexes
تعداد نتایج: 254025 فیلتر نتایج به سال:
abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...
We have previously shown that 3 Ca(2+) ions are released cooperatively and 1 independently from the complex between (Ca(2+))4-calmodulin and skeletal muscle myosin light chain kinase or a peptide containing its core calmodulin-binding sequence. We now have found that three Ca(2+)-binding sites also function cooperatively in equilibrium Ca(2+) binding to these complexes. Replacement of sites I a...
We have previously shown that 3 Ca ions are released cooperatively and 1 independently from the complex between (Ca)4-calmodulin and skeletal muscle myosin light chain kinase or a peptide containing its core calmodulin-binding sequence. We now have found that three Ca-binding sites also function cooperatively in equilibrium Ca binding to these complexes. Replacement of sites I and II in calmodu...
abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...
In this paper we show that graphs of “neighbourly” cubical complexes – cubical complexes in which every pair of vertices spans a (unique) cube – have good expansion properties, using a technique based on multicommodity flows. By showing that graphs of stable set polytopes are graphs of neighbourly cubical complexes we give a new proof that graphs of stable set polytopes have edge expansion 1.
Predicting Types of Protein-Protein Interactions Using Various Multiple-Instance Learning Algorithms
Analysis of protein-protein interactions (PPI) is an important issue to understand the biological mechanism of a cellular process. Although large volumes of PPI data have been collected, only a few amounts of PPIs have been elucidated at the functional level. It is required to predict functional types of PPIs. A PPI described in existing pathways, as the KEGG pathways, often corresponds to a pa...
aminocarboxylic acids, such as 2-aminobenzoic acid, react easily with [ir(cod)(pme3)3]cl, (cod=1,5-cyclooctadiene), in thf to produce hydridoaminocarboxylato iridium(iii) complexes in high yields. these octahedral complexes are formed via oxidative addition reaction of the o-h bond of the carboxylic group with the central metal. the starting iridium(i) complex losses the cod molecule, the chlor...
This paper proposes a novel four-dimensional approach to the structural study of protein complexes. In the approach, the surface of a protein molecule is to be described using the intersection of a pair of four-dimensional triangular cones (with multiple top vertexes). As a mathematical toy model of protein complexes, we consider complexes of closed trajectories of n-simplices ( 2,3,4, n = ),...
A recursion due to Kook expresses the Laplacian eigenvalues of a matroid M in terms of the eigenvalues of its deletion M−e and contraction M/e by a fixed element e, and an error term. We show that this error term is given simply by the Laplacian eigenvalues of the pair (M−e, M/e). We further show that by suitably generalizing deletion and contraction to arbitrary simplicial complexes, the Lapla...
Transactivation-response element (TAR) is a stable stem-loop structure of HIV RNA, which plays a crucial role during the life cycle of the virus. The apical loop of TAR acts as a binding site for essential cellular cofactors required for the replication of HIV. High-affinity aptamers directed against the apical loop of TAR have been identified by the SELEX approach. The RNA aptamers with the hi...
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