Browse our latest Biochemistry and Chemical Biology articles

Page 123 of 173
    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.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    La-related protein 1 (LARP1) binds the mRNA cap, blocking eIF4F assembly on TOP mRNAs

    Roni M Lahr, Bruno D Fonseca ... Andrea J Berman
    La-related protein 1 specifically and directly binds the 5' cap and first nucleotide of mRNAs encoding ribosomal proteins and translation factors, inhibiting the assembly of translation initiation factors on these messages and therefore their translation.
    1. Biochemistry and Chemical Biology

    SENP8 limits aberrant neddylation of NEDD8 pathway components to promote cullin-RING ubiquitin ligase function

    Kate E Coleman, Miklós Békés ... Tony T Huang
    Aberrant neddylation of non-cullin substrates disrupts normal cell cycle progression.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of protein translocation by the Vps4-Vta1 AAA ATPase

    Nicole Monroe, Han Han ... Christopher P Hill
    A cryo-electron microscopy structure of a substrate-bound Vps4-Vta1 AAA ATPase reveals an asymmetric hexameric ring and suggests how nucleotide-induced changes in subunit interfaces translocate polypeptides into the central pore.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure of Fam20A reveals a pseudokinase featuring a unique disulfide pattern and inverted ATP-binding

    Jixin Cui, Qinyu Zhu ... Junyu Xiao
    Fam20A, a pseudokinase involved in the formation of tooth enamel, binds ATP in an unexpected orientation.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A CDC25 family protein phosphatase gates cargo recognition by the Vps26 retromer subunit

    Tie-Zhong Cui, Tabitha A Peterson, Christopher G Burd
    The CDC25 family protein phosphatase Mih1 promotes downregulation of cell surface proteins in budding yeast by dephosphorylating a subunit of the retromer complex, which mediates plasma membrane recycling.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Role of D-aminoacyl-tRNA deacylase beyond chiral proofreading as a cellular defense against glycine mischarging by AlaRS

    Komal Ishwar Pawar, Katta Suma ... Rajan Sankaranarayanan
    Along with preventing D-amino acids from being incorporated into proteins, D-aminoacyl-tRNA deacylase clears achiral glycine that is incorrectly attached to tRNAAla.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    DNA-mediated association of two histone-bound complexes of yeast Chromatin Assembly Factor-1 (CAF-1) drives tetrasome assembly in the wake of DNA replication

    Francesca Mattiroli, Yajie Gu ... Karolin Luger
    After DNA replication, nucleosomes are assembled by two histone chaperone complexes each bound to an H3-H4 histone dimer, suggesting the feasibility for a semi-conservative mode of epigenome inheritance.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Insights into the molecular architecture and histone H3-H4 deposition mechanism of yeast Chromatin assembly factor 1

    Paul Victor Sauer, Jennifer Timm ... Daniel Panne
    The CAF1 complex binds single histone H3-H4 dimers, and two such complexes associate with extended DNA elements to ensure the deposition of H3-H4 tetramers, the first step in the assembly of nucleosomes.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Fail-safe control of translation initiation by dissociation of eIF2α phosphorylated ternary complexes

    Martin D Jennings, Christopher J Kershaw ... Graham D Pavitt
    Phosphorylated translation initiation factor eIF2, a potent inhibitor of protein synthesis in eukaryotic cells, is also inhibitory to protein synthesis when bound to GTP and initiator tRNA broadening the reach and immediacy of eIF2-mediated control.