Familial Alzheimer’s disease mutations alter the stability of the amyloid -protein monomer folding nucleus

نویسندگان

  • Marianne A. Grant
  • Noel D. Lazo
  • Aleksey Lomakin
  • Margaret M. Condron
  • Hiromi Arai
  • Ghiam Yamin
  • Alan C. Rigby
  • David B. Teplow
چکیده

*Division of Molecular and Vascular Medicine, Beth Israel Deaconess Medical Center, and Department of Medicine, Harvard Medical School, Boston, MA 02215; †Gustaf A. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main Street, Worcester, MA 01610; ‡Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139; and §Department of Neurology, David Geffen School of Medicine, and Molecular Biology Institute and Brain Research Institute, University of California, Los Angeles, CA 90095

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Familial Alzheimer's disease mutations alter the stability of the amyloid beta-protein monomer folding nucleus.

Amyloid beta-protein (Abeta) oligomers may be the proximate neurotoxins in Alzheimer's disease (AD). Recently, to elucidate the oligomerization pathway, we studied Abeta monomer folding and identified a decapeptide segment of Abeta, (21)Ala-(22)Glu-(23)Asp-(24)Val-(25)Gly-(26)Ser-(27)Asn-(28)Lys-(29)Gly-(30)Ala, within which turn formation appears to nucleate monomer folding. The turn is stabil...

متن کامل

Effects of the English (H6R) and Tottori (D7N) familial Alzheimer disease mutations on amyloid beta-protein assembly and toxicity.

Mutations in the amyloid beta-protein (Abeta) precursor gene cause autosomal dominant Alzheimer disease in a number of kindreds. In two such kindreds, the English and the Tottori, the mutations produce amyloid beta-proteins containing amino acid substitutions, H6R and D7N, respectively, at the peptide N terminus. To elucidate the structural and biological effects of the mutations, we began by e...

متن کامل

Op-brai140046 1533..1549

Recent studies suggest that subcortical structures, including striatum, are vulnerable to amyloid-b accumulation and other neuropathological features in familial Alzheimer’s disease due to autosomal dominant mutations. We explored differences between familial and sporadic Alzheimer’s disease that might shed light on their respective pathogenic mechanisms. To this end, we analysed 12 brain regio...

متن کامل

Role of the familial Dutch mutation E22Q in the folding and aggregation of the 15–28 fragment of the Alzheimer amyloid- protein

Amyloid fibrils, large ordered aggregates of amyloid proteins (A ), are clinical hallmarks of Alzheimer’s disease (AD). The aggregation properties of amyloid proteins can be strongly affected by singlepoint mutations at positions 22 and 23. The Dutch mutation involves a substitution at position 22 (E22Q) and leads to increased deposition rates of the A E22Q peptide onto preseeded fibrils. We in...

متن کامل

In-silico Evaluation of Rare Codons and their Positions in the Structure of ATP8b1 Gene

Background: Progressive familial intrahepatic cholestases (PFIC) are a spectrum of autosomal progressive liver diseases developing to end-stage liver disease. ATP8B1 deficiency caused by mutations in ATP8B1 gene encoding a P-type ATPase leads to PFIC1. The gene for PFIC1 has been mapped on a 19-cM region of 18q21-q22, and a gene defect in ATP8B1 can cause deregulations in bile salt transporters...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007