biology of the postsynaptic glycine receptor
Báo cáo khoa học: An arginyl in the N-terminus of the V1a vasopressin receptor is part of the conformational switch controlling activation by agonist docx
Ngày tải lên :
07/03/2014, 21:20
... in which the N-terminus of the OTR is replaced with the corresponding sequence of the V1aR [10] The role of the N-terminus has been addressed recently by alanine-scanning mutagenesis of the N-terminus ... to maintaining the conformational switch of the V1aR in the off-state The unique ability of arginyl to fulfil this constraining function in the N-terminus of the V1aR is similar to the unique constraining ... nevertheless a significant aspect of the Arg at this locus in the wildtype V1aR because reversal of the charge in [R46E]V1aR and [R46D]V1aR resulted in the least responsive receptors of the 20...
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Báo cáo khoa học: Systemic RNAi of the cockroach vitellogenin receptor results in a phenotype similar to that of the Drosophila yolkless mutant ppt
Ngày tải lên :
16/03/2014, 14:20
... in the cortex of the basal oocyte (Fig 5) The adult shows a similar pattern, although towards the end of the first gonadotrophic cycle, the BgVgR begins to accumulate also in the cortex of the ... with the signal ip 3.0 program [20]) The organization of the BgVgR amino acid sequence indicates that it is a member of the LDLR superfamily receptors, characterized by the conservation of modular ... Vitellogenin receptor of B germanica (A) Organization of B germanica VgR showing the characteristic domains of an LDL receptor (B) Comparison of modular domains between different insect VgRs Percentage of...
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Báo cáo khoa học: Distribution of the lipolysis stimulated receptor in adult and embryonic murine tissues and lethality of LSR–/– pdf
Ngày tải lên :
16/03/2014, 18:20
... contained the first eight exons and ends 19 bp before the end of exon of the LSR gene; it lacks all of intron and exon 10 Altogether this sequence lacks the portion coding for the last 17 amino acids of ... cloning of the LSR allowed the authors to identify putative translation products of 58.3, 63.8, and 65.8 kDa The combination of various techniques suggested that the receptor was a multimer of subunits ... distribution of its mRNA in organs of adult mice in comparison with that of mRNA of other lipoprotein receptors or apolipoproteins We also determined the amount of LSR mRNA at different time points of...
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Báo cáo khoa học: NMR structure of the thromboxane A2 receptor ligand recognition pocket pot
Ngày tải lên :
16/03/2014, 18:20
... on the extracellular domain The second step will then be the deposition of the ligand into the TM pocket causing the conformation change of the receptor and triggering the coupling of the receptor ... Mutation of the conserved sequence WCF in eLP2 of the EP receptor has been reported to change the ligand binding recognition of the receptor [30] The relationship of the changes of the conserved ... impaired further definition of the ligand recognition pocket on the extracellular side of the receptors This has become a major obstacle to the further understanding of the molecular mechanism of the...
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Báo cáo Y học: Irregular spiking in free calcium concentration in single, human platelets Regulation by modulation of the inositol trisphosphate receptors ppt
Ngày tải lên :
17/03/2014, 17:20
... [4] Because of the small size of platelets with nearby Ca2+ATPases throughout the cell, it is likely that the rate of Ca2+ pumping rather than the diffusion of released Ca2+ into the cytosol ... at higher Ca2+ levels the InsP3 receptors become desensitized Other factors determining the open probability of the receptor channels are the luminal Ca2+ concentration in the endoplasmic reticulum ... and from a region of interest of an adjacent platelet (r) (initial value of each trace, F/Fo ¼ 1) Insert shows expanded part of curves a–c (B) Selection of regions of interest of the platelets (areas...
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Báo cáo Y học: Ligand-induced heterodimerization between the ligand binding domains of the Drosophila ecdysteroid receptor and ultraspiracle docx
Ngày tải lên :
18/03/2014, 01:20
... fragment of USP Clone pGAD424-USP(172–508) encodes a fusion protein consisting of the activation domain of GAL4 and the C-terminal part of USP including a portion of the hinge region and the LBD ... helix 11 and 12 but not theEcRFdomain.TheN-terminalportionofthehingeregion is dispensible for ligand-induced heterodimerization The question of whether the same holds true for the C-terminal regioncouldnotbeassessed ... 269) The primary purpose of this work is to address the possibility that EcR and USP are capable of dimerization in the absence of a bipartite EcRE and to monitor the potential influence of ecdysteroid...
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Reproductive Biology of the Laboratory Mouse docx
Ngày tải lên :
22/03/2014, 12:20
... Over 80 Years of Research Expertise Over 80 Years of Research Expertise Leveraging the power of genetics in the search for cures to human disease search for cures to human disease Nonprofit research institute founded in ... Resorption of fetuses of fetuses – Cannibalism of litters • Health status Health status • Seasonal effects Seasonal variation in inbred mice Seasonal variation in inbred mice Month of the year ... Cook MJ. 1965. The Anatomy of the Laboratory Mouse http://www.informatics.jax.org/cookbook/ Sperm Production Sperm Production • Diploid spermatogonial stem cells – lifetime supply • 12 stages of spermatogenesis...
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Reproductive biology of the marbled goby, Pomatoschistus marmoratus (Pisces, Gobiidae), in a northern Aegean estuarine system (Greece) pptx
Ngày tải lên :
22/03/2014, 12:20
... The rectangular part of the plot extends from the lower to the upper quartile; the centre lines within each box show the location of the sample medians; the crosses within each box indicate the ... 1990) The present work aims to study the reproductive biology of the marbled goby in the Aegean; more specifically to study the sex ratio, time of spawning, fecundity, and size at maturity of the ... goodness -of- fit test was undertaken to compare the sex ratios at each monthly sampling or within the size groups with the hypothesized sex ratio of 1:1 The gonadosomatic index (GSI), which describes the...
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Báo cáo khoa học: The complex of the insect LDL receptor homolog, lipophorin receptor, LpR, and its lipoprotein ligand does not dissociate under endosomal conditions pot
Ngày tải lên :
23/03/2014, 07:20
... proportional to the amount of LDLR on the plasma membrane However, in the case of the hybrid receptor LDLR(1–251)LpR(302–850) (Fig 4F), the ligand-binding domain of which is composed of the six most ... able to disrupt the complex, the issue was addressed of whether LpR binds HDLp in a different manner than other LDLR family members bind their ligands Therefore, the ability of receptor- associated ... contain the complete hinge region of LDLR The presence of two Gly residues in LpR at the corresponding positions of His264 and Ser265 of LDLR (Table 1) might decrease the rigidity of the hinge...
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Báo cáo Y học: Activation of transcription through the ligand-binding pocket of the orphan nuclear receptor ultraspiracle docx
Ngày tải lên :
23/03/2014, 21:20
... Transfection of neither the wild-type USP nor either mutant had any effect on the minimal basal activation of the Core promoter in the absence of the DR12 motif (clear boxes) Immunoblot of transfected ... only raise the constant background intrinsic fluorescence of the receptor, but, on account of the fact that they (as part of the fixed a-helix 12) not move in position, their level of fluorescence ... dependent on the increasing dose of the added wildtype dUSP Again, over the range of the monotonic restoration of methyl epoxyfarnesoate-activated transcription, there was no effect of the transfected...
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Báo cáo khoa học: Structure, signaling mechanism and regulation of the natriuretic peptide receptor guanylate cyclase pptx
Ngày tải lên :
28/03/2014, 23:20
... Together, these findings suggest that glycosylation is essential for folding or transport of the nascent receptor polypeptide to the cell membrane, but that, once the active receptor is formed, the ... on the luminal side of the collecting duct, where the final and rate-limiting regulation of sodium reabsorption occurs The ANP–NPRA regulatory mechanism may then be governed by the change in the ... the observed homodimerization of the GCD and the metal ion dependence of the catalytic activity support the integrity of the expressed proteins As expected from the high sequence homology with...
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Báo cáo khoa học: Analysis of the region for receptor binding and triggering of oligomerization on Bacillus thuringiensis Cry1Aa toxin potx
Ngày tải lên :
29/03/2014, 22:21
... and the analysis of their binding activity to the receptor to investigate the role of mutated amino acid residues; (b) the analysis of the influence of the modification of the cysteine residues of ... Considering the hypothesis of Gomez et al [13], the oligomerization of mutant toxins requires interaction with the receptor or a receptor- like molecule at the time of tryptic digestion in the HPLC ... F Obata et al Analysis of the binding ability of synthetic peptides To evaluate the binding capability of the loop regions of Cry1Aa toxins directly, we used eight synthetic peptides corresponding...
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Báo cáo khoa học: Internalization of the human CRF receptor 1 is independent of classical phosphorylation sites and of b-arrestin 1 recruitment potx
Ngày tải lên :
30/03/2014, 15:20
... in the shape of the cell following agonist stimulation is observed with the Substance P receptor [25] Detachment of the cells from the surface of the culture dish could reflect disassembly of the ... clusters of b-arrestin could still be observed at the membrane in response to receptor activation even in the absence of the C-terminal tail of the receptor and the cluster of serine/threonine in the ... several GPCRs [29] The function of b-arrestin is to uncouple the receptor from the G-protein, thereby mediating receptor desensitization, and furthermore to couple the receptor to the endocytic machinery...
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BÁO CÁO " SINH HỌC CỦA TÔM NƯỚC NGỌT MACROBRACHIUM IDAE (HELLER, 1862) Ở ĐẢO PHÚ QUỐC, VIỆT NAM THE BIOLOGY OF THE FRESHWATER PRAWN " doc
Ngày tải lên :
02/04/2014, 09:20
... The larval development of the prawns Macrobrachium equidens and Macrobrachium sp (Decapoda : Palaemonidae), reared in the laboratory Journal of Zoology Proceedings of the Zoological Society of ... der Wissenschaften Mathematisch-Naturwissenschaftliche Classe Wien 45: 389426 Holthuis, L B (1950) The Decapoda of the Siboga Expedition Part 10 The Palaemonidae collected by the Siboga and Snellius ... Decapoda) from the Xishuangbanna region of Yunnan province, southern China Hydrobiologia, 400: – 41 Cai, Y & P K L Ng (2001) The freshwater decapod crustaceans of Halmahera, Indonesia Journal of Crustacean...
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molecular biology of the parathyroid - tally naveh-many
Ngày tải lên :
08/04/2014, 12:52
... points in the PTH(1-34):PTH1 receptor complex, Ser1 of hPTH(1-34) to Met425 of the receptor4 3 and Lys13 of hPTH(1-34) to Arg186 of the receptor. 44 Our model of hPTH(1-34) bound to the PTH1 receptor ... from the human PTH cDNA sequence15 and later confirmed by the determination of the structure of the human gene.16 The amino acid sequence of the rat pre-peptide was derived from the sequence of the ... over 200 bp of the intron, similar to the homology in the other non-translated regions of the genes The rat intron A is only 55-57% homologous to the other species The sequences of introns are...
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evolutionary developmental biology of the cerebral cortex - novartis foundation
Ngày tải lên :
08/04/2014, 12:56
... the number of founder cells, the time of onset of corticogenesis, the duration of the cell division cycle, the duration of the period of neurogenesis, the modes of cell division, the number of ... much less than the rest of the body The variety of face shapes in the diĂerent breeds of dog, which are all members of the same species, also provides a good example of the eĂects of diĂerential ... membrane) to the inner ear In the reptilian ancestors of mammals, the joint between the skull and the lower jaw was between the quadrate bone of the skull and the articular bone of the lower jaw,...
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ADVANCES IN ORGAN BIOLOGY THE BIOLOGY OF THE EYE docx
Ngày tải lên :
27/06/2014, 10:20
... materials along the inside of their axons, or the blood supply that nourishes them from the outside The loss of vision results from the death of these nerve cells The hardness of the eye to touch ... interface of the cornea (the clear front surface of the eye), than at the fluid– tissue–fluid interface of the lens Thus, two‐third of the focusing of light is done by the cornea and only one‐third by the ... similar One of the few differences is that the cephalopod eye has nerves, which travel from the back of the photoreceptors, rather than the front of them, so that they not interfere with the light...
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Báo cáo y học: "Differential expression of the angiogenic Tie receptor family in arthritic and normal synovial tissue" doc
Ngày tải lên :
09/08/2014, 03:24
... are the putative target of this cytokine [18,19] The localization of Ang-1 is similar to that of VEGF, which further supports the crucial role of the interaction between these two pathways Ang-1 ... actions of vascular endothelial growth factor (VEGF) and its receptors [7] VEGF and the Tie family orchestrate optimal blood vessel formation [9,10] Little is known about the role of Tie receptors ... western blotting followed the same pattern as the mRNA expression (Fig 4) Discussion The Tie receptors and the ligands Ang-1 and Ang-2 appear to be involved in the later stages of vessel growth and...
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Báo cáo y học: "Methotrexate enhances the anti-inflammatory effect of CF101 via up-regulation of the A3 adenosine receptor expression" doc
Ngày tải lên :
09/08/2014, 08:23
... compared with the control group and each of the other treatment groups (Figure 1a) In the therapeutic treatment study, in which all of the treatments were initiated at the onset of disease, clinical ... the mode of action of MTX It acts as an antagonist of folic acid, subsequently inhibiting the synthesis of purines and pyrimidines It was further suggested that the anti-inflammatory effect of ... chain of events results in intracellular accumulation of adenosine, which is then released into the extracellular environment [19] The working hypothesis of the present study was that the increase...
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Báo cáo y học: "Effect of the dual endothelin receptor antagonist bosentan on untreatable skin ulcers in a patient with diabetes: a case report" ppsx
Ngày tải lên :
11/08/2014, 00:23
... tissue was apparent on the heel ulcer (Figure 1E) and the ulcer on the flexure of the right ankle The sacral and external malleolar ulcers had both healed Page of rapidly The patient’s general ... 21 weeks of bosentan treatment, the ulcer on the flexure of the right ankle and the heel ulcer had healed (Figure 1F), and the patient was able to walk using a walking aid His bosentan therapy ... endothelin in its pathogenesis [4-6] The efficacy of dual endothelin receptor antagonism has already been shown in other manifestations of diabetic microangiopathy [4,5] Although unlikely, the...
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