110 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Fusion surface structure, function, and dynamics of gamete fusogen HAP2

    Juan Feng, Xianchi Dong ... Timothy A Springer
    Structure, dynamics, and mutation of a gamete fusion protein and comparisons to viral homologues suggest that after trimerization the domain bearing the membrane-inserting fusion loops can pivot with respect to the trimer 3-fold axis.
    1. Developmental Biology

    Evolutionarily conserved sperm factors, DCST1 and DCST2, are required for gamete fusion

    Naokazu Inoue, Yoshihisa Hagihara, Ikuo Wada
    Mammalian fertilization is accomplished through integrating various molecular pathways that include evolutionarily conserved factors, DCST1 and DCST2.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    wtf genes are prolific dual poison-antidote meiotic drivers

    Nicole L Nuckolls, María Angélica Bravo Núñez ... Sarah E Zanders
    Selfish wtf meiotic drive genes use overlapping transcripts to encode both a trans-acting poison to kill gametes that do not inherit the gene and a gamete-autonomous antidote to specifically rescue the gametes that do.
    1. Developmental Biology
    2. Structural Biology and Molecular Biophysics

    Deep learning insights into the architecture of the mammalian egg-sperm fusion synapse

    Arne Elofsson, Ling Han ... Luca Jovine
    AlphaFold-Multimer was used to investigate extracellular protein interactions involved in mammalian egg-sperm recognition, suggesting a putative pentameric complex that includes TMEM81, a sperm protein not previously involved in gamete recognition.
    1. Cell Biology
    2. Developmental Biology

    TMEM95 is a sperm membrane protein essential for mammalian fertilization

    Ismael Lamas-Toranzo, Julieta G Hamze ... Pablo Bermejo-Álvarez
    TMEM95, a protein localized to the sperm acrosome cap, is essential for fertilization.
    1. Developmental Biology

    Fertilization: Conserved sperm factors are no longer a bone of contention

    Xue Mei, Andrew Singson
    Proteins related to a molecule involved in the formation of osteoclasts in bone are required for fertilization in worms, flies and mammals.
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    1. Developmental Biology
    2. Evolutionary Biology

    Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants

    Tetsuya Hisanaga, Shota Fujimoto ... Keiji Nakajima
    Gamete-derived three-amino-acid-loop-extension homeodomain proteins activate zygote development in a strikingly similar manner between basal land plants and green algae, indicating an ancestral role of these transcription factors in green plants.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Structural basis of malaria transmission blockade by a monoclonal antibody to gamete fusogen HAP2

    Juan Feng, Xianchi Dong ... Timothy A Springer
    Structures of a gamete fusogen and antibody fragments bound to its domain 3, and inhibition of parasite fertilization, bring us closer to creating a vaccine to block transmission by mosquitoes of malaria from one person to another.
    1. Developmental Biology
    2. Plant Biology

    ECS1 and ECS2 suppress polyspermy and the formation of haploid plants by promoting double fertilization

    Yanbo Mao, Thomas Nakel ... Rita Groß-Hardt
    The endopeptidases ECS1 and ECS2 regulate double fertilization and their modulation is a powerful tool for the induction of haploids and the formation of triparental plants, which are two agronomically relevant breeding targets.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Stress conditions promote Leishmania hybridization in vitro marked by expression of the ancestral gamete fusogen HAP2 as revealed by single-cell RNA-seq

    Isabelle Louradour, Tiago Rodrigues Ferreira ... David Sacks
    Following exposure of Leishmania culture promastigotes to DNA stress, single-cell RNA sequencing reveals discrete clusters of cells associated with efficient generation of hybrids between different species and strains in vitro marked by expression of the ancestral gamete fusogen HAP2.

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