نتایج جستجو برای: ntd
تعداد نتایج: 1309 فیلتر نتایج به سال:
The New Technology Demonstrator (NTD) is an Australian concept in the development of the Square Kilometer Array (SKA). The key concept behind the NTD is to demonstrate wide field-of-view operations on a ∼15 m parabolic dish using a large (∼100 element) focal plane array. The NTD is fully funded through mid 2007 via the Major New Research Facility (MNRF) program initiated by the Federal Government.
PhiC31 integrase is a serine recombinase containing an N-terminal domain (NTD) that provides catalytic activity and a large C-terminal domain that controls which pair of DNA substrates is able to synapse. We show here that substitutions in amino acid V129 in the NTD can lead to defects in synapsis and DNA cleavage, indicating that the NTD also has an important role in synapsis.
مقدمه و هدف: نقایص لوله عصبی یکی از مهم ترین ناهنجاری ها در نوزادان در بدو تولد می باشد. این مطالعه به منظور تعیین میزان نقایص لوله عصبی (ntds) و انواع آن و ارتباط این ناهنجاری ها با جنس نوزاد، قومیت، ارتباط فامیلی و سن مادر در گرگان انجام گردید. مواد و روشها: این مطالعه بر روی کلیه نوزادان زنده و مرده در طی سالهای 80-1376 از مجموع 26280 تولد با مقایسه با یک نمونه هزار نفری از نوزادان سالم و به...
Neural tube defects (NTDs) include anomalies of the brain (anencephaly and encephalocele) and spine (spina bifida). Even with ongoing mandatory folic acid fortification of enriched cereal grain products, the U.S. Preventive Services Task Force recommends that women of childbearing potential consume a daily supplement containing 400 µg-800 µg of folic acid. Women with a prior NTD-affected pregna...
Background: Coronavirus spike protein N-terminal domains (NTDs) bind sugar or protein receptors. Results:We determined crystal structure of bovine coronavirus NTD and located its sugar-binding site using mutagenesis. Conclusion: Bovine coronavirus NTD shares structural folds and sugar-binding sites with human galectins and has subtle yet functionally important differences from protein-binding N...
BACKGROUND Neural tube defects (NTDs) are one of the most common birth defects caused by a combination of genetic and environmental factors. Currently, little is known about the genetic basis of NTDs although up to 70% of human NTDs were reported to be attributed to genetic factors. Here we performed genome-wide copy number variants (CNVs) detection in a cohort of Chinese NTD patients in order ...
Mechanism of staphylococcal multiresistance plasmid replication origin assembly by the RepA protein.
The staphylococcal multiresistance plasmids are key contributors to the alarming rise in bacterial multidrug resistance. A conserved replication initiator, RepA, encoded on these plasmids is essential for their propagation. RepA proteins consist of flexibly linked N-terminal (NTD) and C-terminal (CTD) domains. Despite their essential role in replication, the molecular basis for RepA function is...
In all organisms, aminoacyl tRNA synthetases covalently attach amino acids to their cognate tRNAs. Many eukaryotic tRNA synthetases have acquired appended domains, whose origin, structure and function are poorly understood. The N-terminal appended domain (NTD) of glutaminyl-tRNA synthetase (GlnRS) is intriguing since GlnRS is primarily a eukaryotic enzyme, whereas in other kingdoms Gln-tRNA(Gln...
As part of the mammalian innate immune response, Toll-like receptors 3 and 4 can signal via the adaptor protein TRIF/TICAM-1 to elicit the production of type-I interferons and cytokines. Recent studies have suggested an auto-inhibitory role for the N-terminal domain (NTD) of TRIF. This domain has no significant sequence similarity to proteins of known structure. In this paper, the crystallizati...
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