Mapping the binding site of ligands to proteins using chemical exchange parameters by NMR spectroscopy

... design The TRAIL agonist (TNF related apoptosis inducing ligand receptors) Inhibitors of Bcl-2 family proteins [57, 58] Inhibitors of IAP proteins (inhibitors of apoptosis) Inhibitors of MDM2 ... at the protein to ligand ratio of 1:1, whereas saturation could not be reached for G94 3.3.4.3 Binding site analysis using NMR based parameters The mapping of bin...

Ngày tải lên: 14/09/2015, 08:49

... fibrinogen -binding domains on the aIIb subunit was accomplished and their potential role in platelet aggregation was determined More specifically, a detailed mapping of the aIIb subunit was performed ... 57–64 are potential fibrinogen -binding domains on the aIIb subunit of aIIbb3 and the corresponding peptides inhibit platelet aggregation and antag...

Ngày tải lên: 31/03/2014, 07:20

... analysis of capsid mutants Structural view and Western blot analysis of capsid mutants A close view of the structure of the cyclophilin A binding loop in the N-terminal (A) and the position of ... antibody Since the E9 8A mutation is located C-terminal to the CypA -binding site and CypA has been suggested to disrupt CA-CA interactions foll...

Ngày tải lên: 13/08/2014, 09:20

... Furthermore, these data may be of particular importance in understanding the physiological role of b-glycosidases and in designing inhibitors In addition, another important issue in understanding the aglycone ... details about the role of different residues of the aglycone-binding site in the stabilization of ESà and the interdependence between t...

Ngày tải lên: 18/02/2014, 17:20

... interaction of ATP with hGK, with possible implications for the positive kinetic cooperativity with respect to Glc Results ATP binding at active site of human glucokinase (WT) hGK and WT GST–hGK enzymes ... steady-state kinetic analyses are also compatible with conformational control of GK catalytic activity by the binding of (Mg )ATP, with...

Ngày tải lên: 06/03/2014, 00:20

... inhibitors of purified MAO -A, in agreement with the data of Ozaita et al (1997) for membrane-bound MAO -A and MAO-B [5] Spectral changes and the alteration of the redox properties of the flavin (Figs and ... for the active site than reported values for I2BS It seems clear that the active site of MAO is not the site to which I2BS ligands bind with nano...

Ngày tải lên: 07/03/2014, 10:20

... has been made to use this program for subsite mapping of other a- amylases found in the literature Evaluations of subsite maps of rice and barley a- amylases are thus also presented MATERIALS AND ... way to explore the nature of the binding site and the process of catalysis for a- amylases Although the overall structure and the tertiary folding of t...

Ngày tải lên: 08/03/2014, 09:20

... apoE3 and apoE4 bind preferentially to small and large lipid particles, respectively Interaction of ApoE3 and ApoE4 with EggPtdCho /TO lipid emulsions Direct binding analysis of ApoE3 and ApoE4 to ... apoE3 and apoE4 to fractionated lipid emulsions, we also employed a direct binding using Myr2Gro-PCho /TO fraction and physiological concentrations of apoE...

Ngày tải lên: 08/03/2014, 09:20

... C-terminal domain, including the highly conserved GSH -binding site (G -site) and the more divergent cosubstrate -binding domain or hydrophobic binding site (H -site) [7,18] The G -site includes both a-helices ... structure elements The topological arrangement of these elements is usually bababba, similar to the thioredoxin fold of other GSH -binding or cysteine -bin...

Ngày tải lên: 15/03/2014, 09:20

... and catalytic properties of the mutants, and simulations of the substrate–enzyme interactions of the wild-type and one of the mutants The results provide indications of the native enzymes’ catalytic ... construction of the mutant b-glucosidases Findings that cytokinin-O-glucosides are natural substrates for both of the two b-glucosidases, Zm-p60.1 and Bgl4:1, b...

Ngày tải lên: 16/03/2014, 04:20

... observed with the A8B8 isoform of GAPDH leading to the A2B2 isoform with a higher NADPHdependent activity [39] By analogy with the CTE of the isoform of GAPDH [15,37], we hypothesize that the disulfide ... Involvement of the negative charge of the residue D36 of CP12 in the interaction between CP12 and GAPDH In order to confirm that residues from the...

Ngày tải lên: 16/03/2014, 13:20

... domains of GCPII cooperate to form the active site and substrate binding cavity of GCPII [26,27] A more detailed insight into the active site was obtained by an analysis of crystal structures of the ... Fig 4A) A B Active site of glutamate carboxypeptidase II A model of the rhGCPII ⁄ NAAG complex: identification of residues delineating the S1 pocket...

Ngày tải lên: 23/03/2014, 07:20

... envisaged as coordination of the metal ion by the nitrogens of the imidazole rings of the histidines and the amino group in the N-terminus Use of the signal intensity reduction of the 1H–13C HSQC crosspeaks ... J Danielsson et al Zinc-binding site of the amyloid b-peptide The aromatic region of the 1H–13C HSQC spectrum is particularly informative ab...

Ngày tải lên: 23/03/2014, 10:20

... change in the redox state of the stigmatellin In conclusion, the redox-induced FTIR difference spectra of the site- directed mutations in the Qo binding site of the bc1 complex from P denitrificans, ... within the Infrared spectroscopic characterization of mutations in the Qo site binding site This observation is not surprising in...

Ngày tải lên: 23/03/2014, 10:20

... data [14] shows that the detergent itself is located in the channel into which the quinone isoprenoid chain sits in the enzyme This explains the slow exchange process of the quinone at its binding ... regardless of the the electron reaches the QA site in a reaction center without redox state of QA (Fig 1), as we assume that the presence of the qu...

Ngày tải lên: 30/03/2014, 20:20