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    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Single methyl groups can act as toggle switches to specify transmembrane Protein-protein interactions

    Li He et al.
    The placement of single methyl groups at certain positions in the sequence of small model transmembrane proteins consisting solely of leucines and isoleucines can modulate highly specific, productive interactions with the transmembrane domain of the erythropoietin receptor.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Transient protein-protein interactions perturb E. coli metabolome and cause gene dosage toxicity

    Sanchari Bhattacharyya et al.
    Weak yet highly species-specific protein-protein interactions enhance the activity of metabolically related enzymes in bacteria at endogenous conditions, but also mean that overexpression of one partner leads to permanent non-physiological complexes and gene dosage toxicity.
    1. Cell Biology

    Luciferase-LOV BRET enables versatile and specific transcriptional readout of cellular protein-protein interactions

    Christina K Kim et al.
    SPARK2 allows a transcriptional readout of inter- and intracellular protein-protein interactions, with near-zero background, by employing proximity-dependent luciferase-LOV regulation.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Single-molecule force spectroscopy of protein-membrane interactions

    Lu Ma et al.
    A high-resolution method to quantify interactions between lipid bilayers and single proteins under controlled load is presented and applied to key proteins involved in membrane fusion and formation and maintenance of membrane contact sites.
    1. Structural Biology and Molecular Biophysics

    Monochromatic multicomponent fluorescence sedimentation velocity for the study of high-affinity protein interactions

    Huaying Zhao et al.
    Fluorescence detected sedimentation velocity offers a new method for studying heterogeneous protein interactions in solution by exploiting characteristic temporal signal modulations of photoswitchable fluorescent proteins.
    1. Developmental Biology

    Fringe proteins modulate Notch-ligand cis and trans interactions to specify signaling states

    Lauren LeBon et al.
    Fringe proteins modulate cis inhibitory, same-cell interactions between the Notch receptor and its ligands to control whether, and in which direction, cells can signal to one another.
    1. Structural Biology and Molecular Biophysics

    Contacts-based prediction of binding affinity in protein–protein complexes

    Anna Vangone, Alexandre MJJ Bonvin
    The number of contacts at the interface of a protein–protein complex, together with the properties of the surface, provides a simple, but well-performing predictor of binding affinity.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Diabetes regulates fructose absorption through thioredoxin-interacting protein

    James R Dotimas et al.
    Thioredoxin-Interacting Protein binds directly to fructose transporters and regulates fructose metabolism, both acutely and chronically.
    1. Neuroscience

    A high affinity RIM-binding protein/Aplip1 interaction prevents the formation of ectopic axonal active zones

    Matthias Siebert et al.
    High affinity interactions with transport adaptors are important to shield the interaction surfaces of cytomatrix components to block fatal premature oligomerization of active zone proteins during axonal transport.
    1. Chromosomes and Gene Expression

    Differentiating Drosophila female germ cells initiate Polycomb silencing by regulating PRC2-interacting proteins

    Steven Z DeLuca et al.
    Characterization of Drosophila female germ cell differentiation shows that nurse cells initiate Polycomb silencing by regulating Pcl and Scm levels to alter the biochemical properties of the PRC2 H3K27 methylase.