3,231 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Conformational and dynamic plasticity in substrate-binding proteins underlies selective transport in ABC importers

    Marijn de Boer et al.
    Selective import via bacterial ABC importers is facilitated by a hitherto unrecognized complexity in the conformational dynamics of the substrate-binding proteins.
    1. Biochemistry and Chemical Biology

    Mia40 is a trans-site receptor that drives protein import into the mitochondrial intermembrane space by hydrophobic substrate binding

    Valentina Peleh et al.
    The import of proteins into the intermembrane space of mitochondria is driven by binding to the trans-site receptor Mia40 and not by the oxidation of cysteine residues.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure and substrate ion binding in the sodium/proton antiporter PaNhaP

    David Wöhlert et al.
    The X-ray structure of the PaNhaP provides a unique view of substrate-ion binding and release in electroneutral sodium/proton antiporters.
    1. Structural Biology and Molecular Biophysics

    Promiscuous binding by Hsp70 results in conformational heterogeneity and fuzzy chaperone-substrate ensembles

    Rina Rosenzweig et al.
    Multiple chaperone binding sites on substrates suggest a mechanism by which the Hsp70 chaperone can circumvent kinetic traps in protein folding.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure and transport mechanism of the sodium/proton antiporter MjNhaP1

    Cristina Paulino et al.
    The inward-open and outward-open structures of MjNhaP1 explain the mechanism of electroneutral sodium-proton antiport across the cell membrane.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    In vitro FRET analysis of IRE1 and BiP association and dissociation upon endoplasmic reticulum stress

    Megan C Kopp et al.
    Quantitative FRET UPR induction assay is used to measure IRE1 and BIP association and dissociation by a variety of ER misfolded proteins and by an important BiP substrate-binding domain mutant, significantly enhancing the evidence for the allosteric UPR induction model.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    AMPylation targets the rate-limiting step of BiP’s ATPase cycle for its functional inactivation

    Steffen Preissler et al.
    AMPylation of BiP allosterically interferes with stimulation of its ATPase activity by J-proteins that is required for high affinity substrate binding.
    1. Structural Biology and Molecular Biophysics

    Conserved conformational selection mechanism of Hsp70 chaperone-substrate interactions

    Ashok Sekhar et al.
    NMR-based flux measurements show that both bacterial and human Hsp70 chaperones interact with helical, as well as sheet substrates predominantly through a conformational selection mechanism.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Measuring protein stability in the GroEL chaperonin cage reveals massive destabilization

    Ilia Korobko et al.
    Protein stability in the cage formed by the chaperonin GroEL and its cofactor GroES is reduced by more than 5 kcal mol-1 relative to that in bulk solution.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Super Spy variants implicate flexibility in chaperone action

    Shu Quan et al.
    Lab-evolved 'super Spy' chaperones show enhanced flexibility, which allows them to bind to and stabilize proteins more effectively than natural chaperones.

Refine your results by:

Type
Research categories