منابع مشابه
Is CdtB a nuclease or a phosphatase?
Lara-Tejero and Galán (1) reported deoxyribonuclease (DNase) I–like activity of cytolethal distending toxin B (CdtB), which causes arrest in the G2/M transition phase of the cell cycle (2). Even though the authors noted that CdtB is a poor nuclease in vitro, they proposed that CdtB-inflicted DNA damage could trigger the checkpoint system that prevents cell entry into mitosis. A relationship bet...
متن کاملAlkaline Phosphatase in Serum is a Marker of Human Toxocariasis
Background: The present study was carried out on the human population of Kashmir valley to evaluate the status of the biochemical parameters of infected population. Materials and Methods: Blood samples were collected from 514 individuals, 298 (57.97%) males and 216 (42.02%) females, 187 (36.38%) were found sero-positive for human toxocariasis. Results: Alkaline phosphatase level was found highe...
متن کاملf/sla from learner perspectives: a social activity or a cognitive process
in the past couple of decades sociocultural theory of sla and its implications in efl contexts have attracted attentions of research circles worldwide and aroused some controversies. firth and wagner (1997) have questioned the principles of the cognitive view which gives importance to mental constructs in favor of sociocultural view which highlights social and contextual constructs. but if soci...
15 صفحه اولPhosphatase-free crystalline micrococcal nuclease.
This report relates to the preceding paper by Taniuchi and Anfinsen. Micrococcal nuclease from the strain “Foggi” has been purified from a commercially available source (Worthington). The enzyme was crystallized from an ammonium sulfate solution. The over-all purification was approximately SOO-fold with an over-all yield of about 16%. The enzyme is virtually devoid of acid and alkaline phosphat...
متن کاملPosterior Vertebral Injury; Is This a Burst Fracture or a Flexion-Distraction Injury?
In thoracolumbar spinal fractures with posterior column injury for applying proper management, it is important to distinguish a flexion-distraction injury (FDI) from a three column burst fracture (BF) as in clinical examination, both may have a similar significant tenderness on direct spinal palpation. Careful attention to the comprehensive clinical examination and detailed imaging features are...
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ژورنال
عنوان ژورنال: Science
سال: 2001
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.291.5504.547a