Effect of methionine oxidation on the structural properties, conformational stability, and aggregation of immunoglobulin light chain LEN.
Effect of methionine oxidation on the structural properties, conformational stability, and aggregation of immunoglobulin light chain LEN.
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蛋氨酸氧化对结构特性,构象稳定性和免疫球蛋白轻链LEN的聚集的影响。
DOI:
10.1021/bi800806d
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发表时间:
2008-08-19
期刊:
影响因子:
2.9
通讯作者:
Uversky, Vladimir N.
中科院分区:
文献类型:
--
作者:
Hu, Dongmei;Qin, Zhijie;Xue, Bin;Fink, Anthony L.;Uversky, Vladimir N.
Light chain amyloidoses arise from the overproduction and abnormal deposition of immunoglobulin light chain in various organs. LEN is the variable domain of an immunoglobulin light chain originally isolated from the urine of a patient suffering from multiple myeloma, with no sign of renal dysfunction or amyloidosis. LEN was shown to form fibrils in vitro under mildly destabilizing conditions. In this work we investigated the changes induced by methionine oxidation in structural properties, conformational stability, and aggregation behavior of the immunoglobulin light chain domain LEN. We established that LEN was well-protected from the oxidation in its native state, but successful oxidation was achieved in the presence of 4M GuHCl. Oxidation induced noticeable structural changes in LEN and destabilized this protein. The methionine-oxidized LEN preferred to form amorphous aggregates instead of fibrils. The results indicated that the LEN oxidation may play an important role in amorphous deposition of the protein, but not in its fibrillation.
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影响因子:
2.9
作者:
Qin, Zhijie;Hu, Dongmei;Fink, Anthony L.
通讯作者:
Fink, Anthony L.
影响因子:
13.8
作者:
Dobson, CM
通讯作者:
Dobson, CM
影响因子:
3
作者:
Peng, Kang;Radivojac, Predrag;Vucetic, Slobodan;Dunker, A. Keith;Obradovic, Zoran
通讯作者:
Obradovic, Zoran
DOI:
10.1073/pnas.231472998
发表时间:
2001-11-06
影响因子:
11.1
作者:
Moskovitz, J;Bar-Noy, S;Stadtman, ER
通讯作者:
Stadtman, ER
影响因子:
4.6
作者:
Kaplan, B;Vidal, R;Gallo, G
通讯作者:
Gallo, G