66 results found
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Mechanistic insight into the conserved allosteric regulation of periplasmic proteolysis by the signaling molecule cyclic-di-GMP

    Debashree Chatterjee, Richard B Cooley ... Holger Sondermann
    Structure-function analyses reveal the mechanistic underpinnings of inside-out transmembrane signaling that controls periplasmic proteolysis, and thereby biofilm formation, in bacteria and may be relevant in the context of other signaling proteins with similar control elements.
    1. Plant Biology

    The kinase LYK5 is a major chitin receptor in Arabidopsis and forms a chitin-induced complex with related kinase CERK1

    Yangrong Cao, Yan Liang ... Gary Stacey
    The chitin-triggered immune response is mediated by a LYK5 and CERK1 receptor complex in Arabidopsis.
    1. Microbiology and Infectious Disease

    Coordination of peptidoglycan synthesis and outer membrane constriction during Escherichia coli cell division

    Andrew N Gray, Alexander JF Egan ... Waldemar Vollmer
    The protein CpoB regulates PBP1B activity in response to the Tol energy state, which facilitates feedback and synchronicity between envelope constriction processes during Gram-negative bacterial cell division.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Unnatural amino acid photo-crosslinking of the IKs channel complex demonstrates a KCNE1:KCNQ1 stoichiometry of up to 4:4

    Christopher I Murray, Maartje Westhoff ... David Fedida
    The IKs potassium channel complex displays functional flexibility that depends on the ratio of its constituent KCNQ1 and KCNE1 protein subunits.
    1. Cell Biology
    2. Immunology and Inflammation

    NaLi-H1: A universal synthetic library of humanized nanobodies providing highly functional antibodies and intrabodies

    Sandrine Moutel, Nicolas Bery ... Franck Perez
    A fully synthetic library of humanized single domain antibodies yields in vitro high affinity antibodies usable in cell biology and translational projects.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Atomic mutagenesis in ion channels with engineered stoichiometry

    John D Lueck, Adam L Mackey ... Christopher A Ahern
    Building on previous work (Pless, 2013), we argue that side-chain 'flip out' is a key event in potassium channel C-type inactivation, and propose a new method for encoding multiple noncanonical amino acids and controlling protein stoichiometry.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cellular encoding of Cy dyes for single-molecule imaging

    Lilia Leisle, Rahul Chadda ... Christopher A Ahern
    Cyanine fluorophores are encoded as non-canonical amino acids to produce functional proteins in cell-free translation systems and live cells for single-molecule imaging.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Multiple selection filters ensure accurate tail-anchored membrane protein targeting

    Meera Rao, Voytek Okreglak ... Shu-ou Shan
    Biochemical dissections show that the Guided Entry of Tail Anchored proteins (GET) pathway selects ER-destined tail-anchored proteins using at least two distinct molecular mechanisms, each recognizing a distinct physicochemical feature in the substrate.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Role of Tim17 in coupling the import motor to the translocation channel of the mitochondrial presequence translocase

    Keren Demishtein-Zohary, Umut Günsel ... Dejana Mokranjac
    First two transmembrane segments of Tim17 are involved in interaction with the channel and the second two with the motor of the presequence translocase suggesting how proteins are handed over during their translocation into mitochondria.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Dual interaction of scaffold protein Tim44 of mitochondrial import motor with channel-forming translocase subunit Tim23

    See-Yeun Ting, Nicholas L Yan ... Elizabeth A Craig
    The motor that drives preproteins into the mitochondrial matrix is coupled to the translocase by Tim44, a two-domain scaffold protein with an intrinsically disordered "dynamic arm" and a structurally stable anchoring domain.

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