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Structural modellin...
Structural modelling of the DNAJB6 oligomeric chaperone shows a peptide-binding cleft lined with conserved S/T-residues at the dimer interface
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- Söderberg, Christopher A.G. (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Månsson, Cecilia (författare)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Bernfur, Katja (författare)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Rutsdottir, Gudrun (författare)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Härmark, Johan, 1984- (författare)
- KTH Royal Institute of Technology,Karolinska Institutet,KTH,Strukturell bioteknik,Karolinska Inst, Dept Biosci & Nutr, Stockholm, Sweden.
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- Rajan, Sreekanth (författare)
- Nanyang Technol Univ, Sch Biol Sci, Singapore 637551, Singapore.,Nanyang Technological University
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- Al-Karadaghi, Salam (författare)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Rasmussen, Morten (författare)
- Univ Southern Denmark, Dept Biochem & Mol Biol, Odense, Denmark.,University of Southern Denmark
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- Hojrup, Peter (författare)
- Univ Southern Denmark, Dept Biochem & Mol Biol, Odense, Denmark.,University of Southern Denmark
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- Hebert, Hans (författare)
- KTH Royal Institute of Technology,Karolinska Institutet,KTH,Strukturell bioteknik,Karolinska Inst, Dept Biosci & Nutr, Stockholm, Sweden.
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- Emanuelsson, Cecilia (författare)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2018-03-26
- 2018
- Engelska.
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Ingår i: Scientific Reports. - : NATURE PUBLISHING GROUP. - 2045-2322. ; 8
- Relaterad länk:
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https://www.nature.c...
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http://dx.doi.org/10... (free)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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https://lup.lub.lu.s...
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Abstract
Ämnesord
Stäng
- = The remarkably efficient suppression of amyloid fibril formation by the DNAJB6 chaperone is dependent on a set of conserved S/T-residues and an oligomeric structure, features unusual among DNAJ chaperones. We explored the structure of DNAJB6 using a combination of structural methods. Lysine-specific crosslinking mass spectrometry provided distance constraints to select a homology model of the DNAJB6 monomer, which was subsequently used in crosslink-assisted docking to generate a dimer model. A peptide-binding cleft lined with S/T-residues is formed at the monomer-monomer interface. Mixed isotope crosslinking showed that the oligomers are dynamic entities that exchange subunits. The purified protein is well folded, soluble and composed of oligomers with a varying number of subunits according to small-angle X-ray scattering (SAXS). Elongated particles (160 x 120 angstrom) were detected by electron microscopy and single particle reconstruction resulted in a density map of 20 angstrom resolution into which the DNAJB6 dimers fit. The structure of the oligomer and the S/T-rich region is of great importance for the understanding of the function of DNAJB6 and how it can bind aggregation-prone peptides and prevent amyloid diseases.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Strukturbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Structural Biology (hsv//eng)
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Söderberg, Chris ...
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Månsson, Cecilia
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Bernfur, Katja
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Rutsdottir, Gudr ...
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Härmark, Johan, ...
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Rajan, Sreekanth
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Al-Karadaghi, Sa ...
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Rasmussen, Morte ...
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Hojrup, Peter
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Hebert, Hans
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Emanuelsson, Cec ...
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