FAP mutations destabilize transthyretin facilitating conformational changes required for amyloid formation.
FAP mutations destabilize transthyretin facilitating conformational changes required for amyloid formation.
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FAP 突变使甲状腺素运载蛋白不稳定,促进淀粉样蛋白形成所需的构象变化。
DOI:
10.1002/9780470514924.ch14
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发表时间:
1996
期刊:
影响因子:
--
通讯作者:
Kelly,JW
中科院分区:
文献类型:
--
作者:
Colon,W;Lai,Z;McCutchen,SL;Miroy,GJ;Strang,C;Kelly,JW
Functional transthyretin (TTR) can be transformed into amyloid by partial acid denaturation yielding a monomeric amyloidogenic intermediate which self‐associates. The amyloidogenic intermediate has substantial β‐sheet structure with non‐native but defined tertiary structure. pH‐dependent proteolysis sensitivity studies have identified portions of TTR which become disordered and solvent‐exposed in the amyloidogenic intermediate. These include the C‐strand‐ loop D‐strand portion of TTR which moves away from the core of the β‐ sandwich fold. Mutations that are associated with early onset‐amyloid disease (familial amyloidotic polyneuropathy; FAP) function by destabilizing tetrameric TTR in favour of the monomeric amyloidogenic intermediate which has a rearranged C‐strand‐loop D‐strand region. In most cases the FAP mutations do not significantly alter the native folded structure, but instead act on the denaturation pathway by a mechanism that is not completely understood. Interestingly, mutations have also been characterized which strongly stabilize tetrameric TTR and make amyloid formation very difficult at pHs accessiblein vivo.
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影响因子:
2.9
作者:
J. Safar;P. Roller;D. Gajdusek;C. Gibbs
通讯作者:
C. Gibbs
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
W. Colón;J. Kelly
通讯作者:
J. Kelly
影响因子:
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作者:
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通讯作者:
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2.9
作者:
NGUYEN, J;BALDWIN, MA;PRUSINER, SB
通讯作者:
PRUSINER, SB
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
J. Kelly;P. Lansbury
通讯作者:
P. Lansbury