Báo cáo khoa học: "Physiological and pathological aspects of long-term storage of acorns" potx

... Original article Physiological and pathological aspects of long-term storage of acorns J Guthke W Spethmann Universität Hannover, Institut für ... development of a seedlot of oak has been followed over a period of 32 months. During the observation period, the absolute starch content of acorns and the exploitation of starch reserves ... t...

Ngày tải lên: 08/08/2014, 19:21

... an accurate measure of the k off parameter in CaM-bound eNOS and nNOS [58], and thus prevented assessment of the relative importance of conformational change rates versus rates of FMNH 2 formation ... in the nNOS and eNOS flavoproteins (dissociation and association of the 4-electron reduced FNR–FMN subunit complex, k on and k off in Fig. 5). Remarkably, the results suggest...

Ngày tải lên: 18/02/2014, 11:20

... 3933 MINIREVIEW Structural and mechanistic aspects of flavoproteins: probes of hydrogen tunnelling Sam Hay, Christopher R. Pudney and Nigel S. Scrutton Manchester Interdisciplinary Biocentre and Faculty of Life ... isotope effects using PEG-modified variants and glycoforms of glucose oxidase: the relationship of modification of the protein envelope to C–H activation and t...

Ngày tải lên: 18/02/2014, 11:20

... and pyridine nucleotides is highly dependent on the approach and colinear orientation of the N5 of the flavin, the hydride to be transferred, and C4 of the nicotinamide. In FNR, displacement of ... production of alternative structures for each protein. The fine-tuning of the enzyme catalytic efficiency is governed by the distance between and mutual orientation of the N5 of...

Ngày tải lên: 18/02/2014, 11:20

... long a-helices and a final b-strand, F, which protrudes from the core of the monomer and runs anti-parallel to the same strand of a second monomer, allowing for the formation of the dimer. The surface of ... glutamate and aspar- tate residues confined to the portion of the molecule involving a-helix A, the nearby loop, the first and last turns of helices E and F, and the...

Ngày tải lên: 06/03/2014, 00:21

... source of carbon and nitrogen for the organism. The analysis of t he distribution of 5¢-nucleotidase, uracil reductase and uridine phosphorylase, enzymes responsible for the catabolism of pyrimidine ... 271) 3101 be degraded and constitute an alternative source of inorganic carbon and nitrogen [79,80]. Consequently, the existence and distribution of arginine decarboxylas...

Ngày tải lên: 30/03/2014, 15:20

Ngày tải lên: 07/08/2014, 23:22

... receptor and Grb7. A role for two of its binding domains, PIR and SH2. Oncogene 19, 2052– 2059. 36 Daly RJ, Sanderson GM, Janes PW & Sutherland RL (1996) Cloning and characterization of GRB14, ... with a high proportion of phosphory- lated receptors having Grb14 bound to them. Structural studies of the kinase domain of the IR in complex with the PIR–BPS of Grb14 and o...

Ngày tải lên: 18/02/2014, 18:20

... prop- erties of muscle phosphofructokinase. Mol Cell Biochem 57, 147–154. 6 Hand SC & Somero GN (1983) Phosphofructokinase of the hibernator Citellus beecheyi, temperature and pH regulation of activity ... lateralis) Justin A. MacDonald 1 and Kenneth B. Storey 2 1 Department of Biochemistry & Molecular Biology, University of Calgary, AB, Canada 2 Institute of Biochemis...

Ngày tải lên: 19/02/2014, 16:20

... the fluorescence spectrum of a 10 l M solution of ANS in the presence and absence of 10 l M of SKA1, at pH 7.0 and 4.4. The presence of the fragment produces a large increase in the intensity of ANS fluorescence, ... set of parameters: a linear heat capacity function for the native state, C p (N); the enthalpies and the heat capacities of the unfolded state, DH U and DC...

Ngày tải lên: 21/02/2014, 03:20