NEUROFIBROUS PROTEINS IN NORMAL AND AGING BRAIN
NEUROFIBROUS PROTEINS IN NORMAL AND AGING BRAIN
批准号:
3409168
负责人:
FELICIA GASKIN
金额:
$17.8万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
1988
资助国家:
美国
项目状态:
已结题
起止时间:
1988-12-01 至 1994-11-30
关键词:
Alzheimer's disease adenosinetriphosphatase aging brain metabolism cell type electron microscopy enzyme mechanism fibrous protein guanosine diphosphate high performance liquid chromatography histochemistry /cytochemistry insulin receptor kinesin laboratory mouse laboratory rabbit laboratory rat microtubule associated protein microtubules monoclonal antibody nuclear magnetic resonance spectroscopy nucleoside diphosphate kinase nucleotide analog nucleotides phosphorylation polymerization posttranslational modifications protein biosynthesis radiotracer tubulin
中文摘要
这项研究的总体目标是了解核苷酸的作用,
微管相关蛋白(MAPS)和翻译后修饰
在调节细胞中微管介导的功能方面。 有
越来越多的证据表明,辅因子,地图和翻译后
微管蛋白和MAP的修饰显示出年龄依赖性变化,
这些变化可能对阿尔茨海默病很重要。 具体目标
有:1.为了继续探索微管组装在体外使用
GTP和ATP的硫代磷酸类似物以及不含
污染的核苷酸二磷酸激酶(NDPK)和ATP酶活性
为了进一步了解核苷酸结合的机制,
微管蛋白组装中的水解。 此外,
微管蛋白刺激的ATP酶(MAP-1C)、驱动蛋白(另一种与微管蛋白反应的ATP酶)、微管蛋白刺激的ATP酶(MAP-1C)、微管蛋白刺激的ATP酶(另一种与微管蛋白反应的ATP酶)、微管蛋白刺激的ATP酶(MAP-1C)、微管蛋白刺激的ATP酶(另一种与微管蛋白反应的ATP酶)、微管蛋白刺激的ATP酶(MAP-1C)、微管蛋白刺激的ATP酶(另一种与微管蛋白反应的ATP酶)、微管蛋白刺激的ATP酶(另一种与微管蛋白反应的ATP酶)、微管蛋白刺激的ATP酶(另一种与微管蛋白反应的ATP酶)、微管蛋白刺激的ATP酶(另一种与微管蛋白反应的ATP酶)。
与微管蛋白)和NDPK将在微管组装系统中进行探测
与核苷酸的硫代磷酸酯类似物。2.利用微管蛋白酪氨酸
连接酶或胰岛素受体激酶添加磷酸酪氨酸或
在α-微管蛋白的羧基末端磷酸化酪氨酸。 到
分析磷酸化和去磷酸化的潜在作用,
微管蛋白装配中的关键酪氨酸。3.为了进一步表征
微管蛋白和MAP-2调节磷酸酪氨酸的作用机制
低分子量聚阳离子刺激的磷酸酶活性
蛋白磷酸酶 这些研究应有助于阐明
核苷酸,微管相关酶和磷酸化对
细胞骨架和增加我们对微管功能的理解。 他们
也有助于我们理解年龄依赖性的变化
大脑中的微管。
英文摘要
The overall aim of this research is to understand the role of nucleotides,
microtubule associated proteins (MAPS) and posttranslational modifications
in the regulation of microtubule-mediated functions in cells. There is
increasing evidence that co-factors, MAPs and posttranslational
modifications of tubulin and MAPs show age-dependent changes and some of
these changes may be important in Alzheimer's Disease. Specific Aims
include: 1. To continue to probe microtubule assembly in vitro using
thiophosphate analogues of GTP and ATP and highly purified tubulin free of
contaminating nucleotide diphosphate kinase (NDPK) and ATPase activities
to further our understanding on the mechanism of nucleotide binding and
hydrolysis in tubulin assembly. In addition, the effects of
tubulin-stimulated ATPase (MAP-lC), kinesin (another ATPase that reacts
with tubulin) and NDPK will be probed in the microtubule assembly system
with thiophosphate analogues of nucleotides. 2. To use tubulin tyrosine
ligase or insulin receptor kinase to add phosphotyrosine or to
phosphorylate tyrosine at the carboxy terminal end of alpha-tubulin. To
analyze the potential role of phosphorylation and dephosphorylation of this
critical tyrosine in tubulin assembly. 3. To further characterize the
mechanism of action of tubulin and MAP-2 regulation on the phosphotyrosyl
phosphatase activity of the low-molecular weight polycation-stimulated
protein phosphatase. These studies should help to elucidate the role of
nucleotides, microtubule associated enzymes and phosphorylation on the
cytoskeleton and increase our understanding of microtubule functions. They
should also contribute to our understanding of age-dependent alterations
of microtubules in brain.
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CORE--CELL SCIENCES AND IMMUNOCHEMISTRY
-
批准号:6663946
-
项目类别:
-
资助金额:$21.7万
-
财政年份:2002
-
负责人:FELICIA GASKIN
-
依托单位:
CORE--CELL SCIENCES AND IMMUNOCHEMISTRY
-
批准号:6469205
-
项目类别:
-
资助金额:$21.7万
-
财政年份:2001
-
负责人:FELICIA GASKIN
-
依托单位:
CORE--CELL SCIENCES AND IMMUNOCHEMISTRY
-
批准号:6395501
-
项目类别:
-
资助金额:$19.02万
-
财政年份:2000
-
负责人:FELICIA GASKIN
-
依托单位:
CORE--CELL SCIENCES AND IMMUNOCHEMISTRY
-
批准号:6217137
-
项目类别:
-
资助金额:$19.02万
-
财政年份:1999
-
负责人:FELICIA GASKIN
-
依托单位:
CORE--CELL SCIENCES AND IMMUNOCHEMISTRY
-
批准号:6100701
-
项目类别:
-
资助金额:$19.02万
-
财政年份:1999
-
负责人:FELICIA GASKIN
-
依托单位:
CORE--CELL SCIENCES AND IMMUNOCHEMISTRY
-
批准号:6268481
-
项目类别:
-
资助金额:$18.95万
-
财政年份:1998
-
负责人:FELICIA GASKIN
-
依托单位:
AUTOANTIBODIES IN ALZHEIMERS DISEASE AND NORMAL AGING
-
批准号:2049510
-
项目类别:
-
资助金额:$21.61万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
NEUROFIBROUS PROTEINS IN NORMAL AND AGING BRAIN
-
批准号:3409167
-
项目类别:
-
资助金额:$17.34万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
AUTOANTIBODIES IN ALZHEIMER' S DISEASE AND NORMAL AGING
-
批准号:2049508
-
项目类别:
-
资助金额:$14.4万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
NEUROFIBROUS PROTEINS IN NORMAL AND AGING BRAIN
-
批准号:3409169
-
项目类别:
-
资助金额:$14.16万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
AUTOANTIBODIES IN ALZHEIMER' S DISEASE AND NORMAL AGING
-
批准号:3117339
-
项目类别:
-
资助金额:$13.92万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
AUTOANTIBODIES IN ALZHEIMER' S DISEASE AND NORMAL AGING
-
批准号:3117336
-
项目类别:
-
资助金额:$13.47万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
AUTOANTIBODIES IN ALZHEIMERS DISEASE AND NORMAL AGING
-
批准号:2049509
-
项目类别:
-
资助金额:$20.92万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
NEUROFIBROUS PROTEINS IN NORMAL AND AGING BRAIN
-
批准号:2265254
-
项目类别:
-
资助金额:$18.57万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
AUTOANTIBODIES IN ALZHEIMERS DISEASE AND NORMAL AGING
-
批准号:2001260
-
项目类别:
-
资助金额:$22.39万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
AUTOANTIBODIES IN ALZHEIMER'S DISEASE AND NORMAL AGING
-
批准号:3117340
-
项目类别:
-
资助金额:$16.26万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
NEUROFIBROUS PROTEINS IN NORMAL AND AGING BRAIN
-
批准号:3409164
-
项目类别:
-
资助金额:$15.71万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
AUTOANTIBODIES IN ALZHEIMERS DISEASE AND NORMAL AGING
-
批准号:2607642
-
项目类别:
-
资助金额:$23.29万
-
财政年份:1988
-
负责人:FELICIA GASKIN
-
依托单位:
NEUROFIBROUS PROTEINS IN NORMAL AND AGING BRAIN
-
批准号:3409162
-
项目类别:
-
资助金额:$14.66万
-
财政年份:1986
-
负责人:FELICIA GASKIN
-
依托单位:
AUTOANTIBODIES IN ALZHEIMER'S DISEASE AND NORMAL AGING
-
批准号:3117338
-
项目类别:
-
资助金额:$1.95万
-
财政年份:1986
-
负责人:FELICIA GASKIN
-
依托单位:
海外基金