In vitro expression analysis shows that the secretory form of gelsolin is the sole source of amyloid in gelsolin-related amyloidosis.
In vitro expression analysis shows that the secretory form of gelsolin is the sole source of amyloid in gelsolin-related amyloidosis.
复制标题
体外表达分析表明,凝溶胶蛋白的分泌形式是凝溶胶蛋白相关淀粉样变性中淀粉样蛋白的唯一来源。
DOI:
--
复制
发表时间:
1996
影响因子:
3.5
通讯作者:
L. Peltonen
中科院分区:
文献类型:
--
作者:
H. Kangas;T. Paunio;N. Kalkkinen;A. Jalanko;L. Peltonen
Amyloidoses are a group of diseases where abnormal fibrillar protein deposits accumulate in patients' tissues. In familial amyloidosis of the Finnish type (FAF), or gelsolin-related amyloidosis, the amyloid subunit protein consists of gelsolin peptides of amino acids 173-243 with the disease causing substitution at Asp187. Gelsolin is an actin-modulating protein and exists in both secretory and intracellular forms both encoded by a single gene in chromosome 9. We have previously shown that the FAF-associated forms of secretory gelsolin carrying the Asp187Asn or Asp187Tyr mutations are abnormally processed in cells, resulting in the secretion of an aberrant 68 kDa carboxyterminal fragment. Here we demonstrate by N-terminal sequencing that the amino terminus of this abnormal fragment is the amino acid 173 and thus represents the N-terminus of the FAF amyloid. We also provide evidence that the same truncated gelsolin can be found among the aberrant gelsolin fragments detected in patients' CSF. Finally, we also expressed the FAF-associated forms of intracellular gelsolin in COS-1 cells, and found no abnormality in their processing opposite to secretory form. Our results provide strong evidence that the secretory gelsolin is solely responsible for the amyloid formation in FAF.
登录
查看更多内容
DOI:
10.1016/s0021-9258(18)61070-1
发表时间:
1987-07
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
P. Matsudaira
通讯作者:
P. Matsudaira
影响因子:
5.3
作者:
Okayama,H;Berg,P
通讯作者:
Berg,P
DOI:
--
发表时间:
1984
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Yin,HL;Kwiatkowski,DJ;Mole,JE;Cole,FS
通讯作者:
Cole,FS
影响因子:
9.8
作者:
Kwiatkowski,DJ;Westbrook,CA;Bruns,GA;Morton,CC
通讯作者:
Morton,CC
DOI:
--
发表时间:
1995
期刊:
The American journal of pathology.
影响因子:
--
作者:
O'Brien,TD;Butler,PC;Kreutter,DK;Kane,LA;Eberhardt,NL
通讯作者:
Eberhardt,NL