Báo cáo khoa học: "Perturbation hydrique et altération des surfaces dans les aiguilles d’épicéas (Picea abies L) du Jura en fonction de leur âge et de l’état de dépérissement des arbres" potx
Báo cáo khoa học: "Comportement hydrique au cours de la saison sèche et place dans la succession de trois arbres guyanais : Trema micrantha, Goupia glabra et Eperua grandiflora" ppt
... est considérable et les arbres ne reprennent que lentement leur pleine activité transpira- toire. En fin de saison sèche, on constate que le potentiel du wapa descend au- dessous de ... goupis proviennent de sauvageons trans- plantés et les wapas de semis. Les plants des 3 espèces ont environ 2 ans et demi, puis 3 ans au moment...
Ngày tải lên: 08/08/2014, 23:21
Tài liệu Báo cáo khoa học: Perturbation of membranes by the amyloid b-peptide – a molecular dynamics study pptx
... the peptide and interactions between the embedded region of the peptide and the acyl chains, it presents an interesting insight into the interactions between asymmetrically-embedded peptides and nearby ... in density slightly. The top lea et appears to be slightly less dense than the bottom lea et as well as the control. Factoring in the presence of the protein and averaging between the two...
Ngày tải lên: 18/02/2014, 08:20
Báo cáo khoa học: Perturbation of folding and reassociation of lactate dehydrogenase by proline and trimethylamine oxide potx
... on the extent of reactivation of GdnHCl-denatured BHLDH. Enzyme was denatured and reactivated as described in the legend for Fig. 1 in the absence and presence of the indicated concentrations ... Chilson@biology.wustl.edu or Chilsonoa@sbcglobal.net Abbreviations: BHLDH, lactate dehydrogenase from bovine heart; EDTA, ethylenediaminetetraacetic acid; GdnHCl, guanidine hydro- chloride; LDH, lact...
Ngày tải lên: 23/03/2014, 15:21
Báo cáo khoa học: Perturbation of membrane microdomains in GLC4 multidrug-resistant lung cancer cells ) modification of ABCC1 (MRP1) localization and functionality docx
... Nonidet P40, Chaps, and octylglucoside, have been employed at different con- centrations to prepare detergent-resistant membrane domains [37–41]. Unsurprisingly, use of these different detergents ... in glycerolphospholipids. Subsequent to the identification of low-density detergent-resistant domains in Triton X-100 cell extracts, a variety of other detergents, including Lubrol WX, Lubrol ......
Ngày tải lên: 30/03/2014, 09:20
Báo cáo khoa học: "Comportement hydrique du frêne (Fraxinus excelsior L) dans une formation montagnarde mésoxérophile" ppsx
... la productivité du frêne dépendent principalement de l’alimentation en eau à partir du sol (Devauchelle et Lévy, 1977). Les sols doivent être bien pourvus en eau, ni trop ... dimi- nution de l’ensemble des valeurs de la conductance et une détérioration de la ré- ponse des stomates à l’éclairement. Relation entre le potentiel ψ...
Ngày tải lên: 08/08/2014, 23:22
Tài liệu Báo cáo khoa học: Insights into the structure of plant a-type phospholipase D Susanne Stumpe, Stephan Konig and Renate Ulbrich-Hofmann ¨ ppt
... of protein concentration The concentration of PLDa2 in the range between 75 lgÆmL )1 and 1 mgÆmL )1 was determined spectrophoto- metrically, using the molar extinction coefficient e 280 nm ¼ 123 ... the DORIS storage ring, Desy, Hamburg. Measurements were performed at a camera length of 2 m, using a Mar345 image plate detector (Marresearch, Norderstedt, Germany), at a wavelength of 1.5 A ˚ , ....
Ngày tải lên: 19/02/2014, 02:20
Báo cáo khoa học: Cysteine residues exposed on protein surfaces are the dominant intramitochondrial thiol and may protect against oxidative damage docx
... of 3-nitrotyrosine was dependent on the concentration of ONOO ) (Fig. 3C). To determine whether exposed pro- tein thiols decreased 3-nitrotyrosine formation, we pre- treated membranes with N-ethylmaleimide to ... by which methionine residues can pro- tect adjacent amino acid residues by being preferen- tially oxidized to methionine sulfoxide, which is then recycled by methionine sulfoxide red...
Ngày tải lên: 06/03/2014, 09:22
Báo cáo khoa học: Acidic extracellular pH increases calcium influx-triggered phospholipase D activity along with acidic sphingomyelinase activation to induce matrix metalloproteinase-9 expression in mouse metastatic melanoma pot
... zymography. Experiments were performed three times; one representative experiment is shown accompanied with the induction rate, which was estimated by densitometry. Concentration dependent reduc- tion was seen ... BAPTA-AM [1,2- bis(2-aminophenoxy)-ethane-N,N,N 1 ,N 1 -tetraacetic acid tetrakis (acetoxymethyl) ester]. We found that BAPTA-AM dose-dependently attenuated the acidic pH e -induced...
Ngày tải lên: 07/03/2014, 09:20
Báo cáo khoa học: The fabp4 gene of zebrafish (Danio rerio) ) genomic homology with the mammalian FABP4 and divergence from the zebrafish fabp3 in developmental expression pot
... Genet 47, 39–48. 32 Hudson TJ, Church DM, Greenaway S, Nguyen H, Cook A, Steen RG, Van Etten WJ, Castle AB, Strivens MA, Trickett P et al. (2001) A radiation hybrid map of mouse genes. Nat Genet ... been identified thus far in fishes. We have determined the cDNA sequence and de ned the structure of a fatty acid-binding protein gene (designated fabp4) from the zebrafish genome. The polypeptide...
Ngày tải lên: 07/03/2014, 10:20
Báo cáo khoa học: Cloning and characterization of the genes encoding toxic lectins in mistletoe (Viscum album L) pot
... has been assumed that all three mistletoe toxins are encoded by the same gene, and that post-translational modifications cause the differences between the proteins [15]. The present work describes ... full-size encoding sequences of the mistletoe toxic lectin genes. Analysis of the primary structure of the genes and the encoded proteins enabled us to isolate three gene variants in good agreeme...
Ngày tải lên: 07/03/2014, 15:20