enzymatic properties of polyphenol oxidases
Tài liệu Báo cáo khoa học: Enzymatic properties of wild-type and active site mutants of chitinase A from Vibrio carchariae, as revealed by HPLC-MS pptx
Ngày tải lên :
20/02/2014, 01:20
... affinity with chain 3381 Enzymatic properties of chitinase A from Vibrio carchariae length of chitooligomers implies that the binding site must be composed of an array of subsites, probably six ... chromatographic peaks of the respective molecules FEBS Journal 272 (2005) 3376–3386 ª 2005 FEBS 3377 Enzymatic properties of chitinase A from Vibrio carchariae Fig Stereochemistry of chitin hydrolysis ... (2005) 3376–3386 ª 2005 FEBS Enzymatic properties of chitinase A from Vibrio carchariae Table Kinetic parameters of chitinase A with various substrates The hydrolysis of chitooligosaccharides and...
- 11
- 592
- 0
Báo cáo khoa học: Crystal structure and enzymatic properties of a bacterial family 19 chitinase reveal differences from plant enzymes pdf
Ngày tải lên :
07/03/2014, 11:20
... hypothesis is not confirmed by the present analysis of enzymatic properties of ChiG, or by our analysis of the ChiG and ChiC structures Despite the deletion of the B-loop, the two putative catalytic residues ... mg of ChiG per liter of culture) Tests with several substrates showed that removal of the His tag by tobacco etch virus NIa protease (TEV-protease) did not affect the catalytic properties of ... the exploitation of chitinous substrates as a source of nutrition Production of multiple enzymes with varying properties (endo-action or exo-action, processive or not, presence of additional substrate-binding...
- 12
- 399
- 0
Báo cáo khoa học: Enzymatic properties of the lactate dehydrogenase enzyme from Plasmodium falciparum pdf
Ngày tải lên :
23/03/2014, 09:20
... concentrations of either substrate or cofactor with varied concentrations of the other The experiments were performed at different, fixed concentrations of either lactate or NAD+ A subsequent set of experiments ... polarity of the environment of the fluorophore In the case of PfLDH, the signal change on binding to the active site was too small to be used as a reliable reporter of the formation of the binary ... is an average of 10 One of the more striking sequence differences between PfLDH and other LDHs of the same fold is the presence of a lysine residue at position 102 The presence of a positive...
- 11
- 376
- 0
Báo cáo y học: "Biophysical and enzymatic properties of the simian and prototype foamy virus reverse transcriptases" pptx
Ngày tải lên :
12/08/2014, 23:22
... characterization of proteolytic processing of the pol proteins of human foamy virus reveals novel features of the viral protease J Virol 1998, 72:7648-7652 Roy J, Linial ML: Role of the foamy virus ... Biophysical properties of PFV and SFVmac PR-RT (A) Far UV circular dichroism (CD) spectra of wild-type SFVmac (continuous line) and PFV PR-RT (dotted line) were acquired at 20°C using a band width of ... sensitivity of 100 mdeg and a data density of points/nm in a 0.1 cm cell with 0.5 μM of each enzyme in 25 mM Na2HPO4/NaH2PO4 pH 7.4, and mM NaCl (B) Size exclusion chromatography of PFV PR-RT...
- 10
- 406
- 0
Báo cáo Y học: Isolation, enzymatic properties, and mode of action of an exo-1,3-b-glucanase from Trichoderma viride doc
Ngày tải lên :
24/03/2014, 04:21
... hydrolysis of 1,3-b-oligoglucosides, the subsite theory of Hiromi [46,47] was employed for construction of a subsite map for the estimation of affinities and number of subsites in the active center of ... mL of buffer and 10 mL of enzyme (0.01 U) in mM sodium acetate buffer, pH 4.5, was mixed with 50 mL of laminarin (20 mg:mL21 in water) or with 20 mL of G3G3G3G (40 mM in water) The influence of ... this model kinetic analysis of the hydrolysis of oligosaccharides with different DP is an effective tool for characterization of subsite structure of the active center of exo-glucanases and glucosidases...
- 9
- 554
- 0
Antisense expression of polyphenol oxidase genes inhibits enzymatic browning in potato tubers
Ngày tải lên :
18/05/2014, 20:10
... Construction of T-DNA vectors carrying antisense PPO cDNAs In order to maximize the chances ofachieving ahigh level of antisense inhibition of PPO gene expression, we designed a series of antisense ... patatin promoter activity" Ofthe large population of transgenic PPO lines generated, a small proportion of lines were not amenable to microtuber induction (
- 5
- 355
- 0
Properties of Convolution
Ngày tải lên :
13/09/2012, 09:49
... operations Chapter 7- Properties of Convolution 127 2.0 a Original signal Amplitude 1.0 0.0 -1.0 FIGURE 7-3 Example of calculus-like operations The signal in (b) is the first difference of the signal ... curve of the form: sin(x)/(x) , is used to separate one band of frequencies from another c Sinc 0.3 Amplitude Amplitude 0.3 0.2 0.1 0.0 -0.1 -20 -15 -10 Sample number Chapter 7- Properties of Convolution ... affect any of the output signal values As shown by the examples in Fig 7-6, the impulse response of a causal system must have a value of zero for all negative numbered samples Think of this from...
- 18
- 495
- 0
FOAMING PROPERTIES OF PROTEINS.pdf
Ngày tải lên :
16/12/2012, 15:10
... summary of the independent parameters the modified foaming apparatus FOAMING PROPER TIES used far experi- Nature Fixed Diameter Porosity Volume Volume Mass of of sparging disc of sparging disc of ... = Tw Did = = percent of gas initially in 70 ml of foam (gas Flow Rate) - ml/min of nitrogen time to fill the column with foam volume of liquid in the foam initially volume of liquid drained from ... characteristics of protein i.e the foaming capacity of protein and the stability and strength of the foam Foaming ability i.e Gi denotes the amount of gas retained in the foam reflecting the potential of...
- 6
- 475
- 1
Thermal properties of the vernacular buildings envelopes: the case of the "Sassi di Matera" and "Trulli di Alberobello
Ngày tải lên :
05/09/2013, 14:58
... University of Bari in 1979 University Researcher at the of Engines and Energy Institute of the Faculty of Engineering at the University of Bari from 1983 to 1987 Associate professor of Technical ... measure of conductance The analyses, done in the laboratory of Technical Physics of the Polytechnic of Bari, were performed on some samples of calcarenite sandstone and calcareous stone of Fasano ... typologies of building wall: a wall in blocks of calcarenite sandstone assembled with mortar, typical of the constructions of "Sassi of Matera," and a masonry made with dry calcareous stones of Fasano,...
- 10
- 507
- 0
Assessment of pretreatments and enzymatic hydrolysis of wheat straw as a sugar source for bioprocess industry
Ngày tải lên :
05/09/2013, 15:28
... [96]) Enzymatic saccharification of cellulose takes place at optimum temperature of 45-50ºC and pH of 5.0 Cellulase loading range of 10-15 FPU/g dry substrate and b-glucosidase loading of 10-15 ... cellulase during enzymatic hydrolysis of filter paper at low dosage of enzyme [108] More research is required to estimate the feasibility of using these compounds for enzymatic hydrolysis of lignocellulose ... lignin as renewable source of biochemicals could bring greater surpluses to the profits of a biorefinery The use of oxidative pretreatments that rely on degradation of this component would not...
- 20
- 437
- 0
Effects of time of heatsetting on the tensile properties of ingeo™ poly (lactic acid) (PLA) fabric
Ngày tải lên :
05/09/2013, 16:10
... Figure Effect of time of heatsetting on the linearity of load extension in weft direction of knitted Ingeo™ Poly (lactic acid) Figure Mean effect of time of heatsetting on the linearity of load extension ... Increasing time of heatsetting had effect on tensile properties of PLA at varying times of 30s to 90s at temperature of 130°C Optimum effect on tensile properties occurred at times of 30 – 45s PLA ... [PLA] Figure Mean [Ā] of effect of time of heatsetting on the tensile extension EM [%] of Ingeo™ Poly (lactic acid) 3.2 Linearity of load extension curve LT [-] The linearity of load extension curve...
- 10
- 460
- 0
Physicochemical properties of polluted water of river Ganga at Varanasi
Ngày tải lên :
05/09/2013, 16:11
... pH Because most of the chemical and biochemical reaction are influenced by the pH it is of great practical importance The adverse affect of most of the acids appear below and of alkalis above ... quality criteria of an aquatic system In the system where rate of respiration and organic decomposition are high ,the DO values remain lower than those of system where the rate of photosynthesis ... growth and activities of microorganism 3.6 Biological Oxygen demand It has been used as a measure of the amount of organic materialism an aquatic solution which support the growth of microorganism...
- 10
- 292
- 0
Properties of American Derivative Securities
Ngày tải lên :
18/10/2013, 03:20
... owner of the derivative security should exercise it If he does not, then the seller of the security can immediately consume f Vk ! , + r IE Vk+1jF k ! and still maintain the hedge 6.2 Proofs of ... maintain the hedge 6.2 Proofs of the Properties Let fGk gn=0 be a sequence of non-negative random variables such that each Gk is F k -measurable k Define Tk to be the set of all stopping times satisfying ... Lemma 2.18 Proof: Take Vk Gk for every k Tk to be the constant k Lemma 2.19 The process f 1 + r ,k Vk gn=0 is a supermartingale k Proof: Let attain the maximum in the definition of Vk+1 , i.e.,...
- 6
- 422
- 0
Static properties of granular materials Philippe Claudin
Ngày tải lên :
01/11/2013, 08:20
... a series of captors), and are thus much noisier 250 Static properties of granular materials F r p h z Fig 14.13 Sketch of the experimental set-up of Reydellet et al for the measure of the pressure ... focused on the quasistatic rheology of a granular system, so why is all of this related to the description of its statics? As a matter of fact, the static properties of the studied sample are responsible ... horizontal position of the apex of the pile – also, changing the sign of x changes that of the shear σx z More generally, the stress state of the jammed grain packing is assumed to be of the form σx...
- 41
- 407
- 0
Tài liệu Nature and Properties of Micro-organisms doc
Ngày tải lên :
12/12/2013, 17:15
... Formaldehyde increases infectivity Viruses DNA or RNA Shell of protein (capsid) surrounding nucleic acid Classification on basis of nucleic acid DNA viruses: eg Herpes simplex virus (HSV) ... body Varicella zoster virus (VZV) VZV: Chickenpox VZV: Shingles Re-activation of latent infection Suppression of cell mediated immunity Bacteria Unicellular, DNA and RNA Binary No prokaryotes ... (transfer of plasmid DNA) Important bacterial products 1: extracellular polysaccharide CAPSULE condensed, well defined layer closely surrounding the cell contributes to invasiveness of pathogenic...
- 35
- 528
- 0
Tài liệu Mechanical Properties of Engineered Materials P2 pptx
Ngày tải lên :
23/12/2013, 00:15
... and 2.8(f) These may be thought of as the absence of a plane of atoms (intrinsic stacking faults) or the insertion of rows of atoms that disturb the arrangement of atoms (extrinsic stacking faults) ... example of volume defects is presented in Fig 2.9 This shows MnS inclusions in an A707 steel Another example of a volume defect is presented in Fig 1.16(d) This shows evidence of $1–2 vol % of porosity ... approximately 0.3–0.5 of the melting temperature in degrees Kelvin Since the evolution of microstructure is often controlled by diffusion processes, a brief introduction to elementary aspects of diffusion...
- 10
- 510
- 0
Tài liệu Mechanical Properties of Engineered Materials P1 pptx
Ngày tải lên :
23/12/2013, 00:15
... mechanical properties of materials It is not intended to be a comprehensive review of all the different aspects of mechanical properties; such a task would be beyond the capabilities of any single ... macroscopic level of understanding of structure [Figs 16(a)–(d)] They are often unaware of the atomic and microstructural constituents that can affect the mechanical behavior of materials and of the role ... Appreciation is also extended to Prof Tom Eager and Prof Nam Suh of MIT for inviting me to spend a sabbatical year as Visiting Martin Luther King Professor in the departments of Materials Science and Engineering...
- 40
- 476
- 0