Involvement of synaptonemal complex proteins in sex chromosome segregation during marsupial male meiosis. [PDF]
Marsupial sex chromosomes break the rule that recombination during first meiotic prophase is necessary to ensure reductional segregation during first meiotic division.
Jesús Page +9 more
doaj +1 more source
Heterogeneity in conservation of multifunctional partner enzymes with meiotic importance, CDK2 kinase and BRCA1 ubiquitin ligase [PDF]
The evolution of proteins can be accompanied by changes not only to their amino acid sequences, but also their structural and spatial molecular organization.
Sergey Matveevsky, Tatiana Grishaeva
doaj +2 more sources
Crystal Structure of C-Terminal Coiled-Coil Domain of SYCP1 Reveals Non-Canonical Anti-Parallel Dimeric Structure of Transverse Filament at the Synaptonemal Complex. [PDF]
The synaptonemal complex protein 1 (SYCP1) is the main structural element of transverse filaments (TFs) of the synaptonemal complex (SC), which is a meiosis-specific complex structure formed at the synapse of homologue chromosomes to hold them together ...
Eun Kyung Seo +4 more
doaj +1 more source
Coiled-coil structure of meiosis protein TEX12 and conformational regulation by its C-terminal tip
The X-ray crystal structures of C-terminal mutants of the coiled-coil protein cancer testis antigen TEX12 in combination with modeling of the TEX12 wild-type dimer reveal the protein’s control of its oligomeric state, which resembles assembly of its ...
James M. Dunce +2 more
doaj +1 more source
A conserved filamentous assembly underlies the structure of the meiotic chromosome axis. [PDF]
The meiotic chromosome axis plays key roles in meiotic chromosome organization and recombination, yet the underlying protein components of this structure are highly diverged.
Caballero, Iracema +10 more
core +4 more sources
Ipl1/aurora kinase suppresses S-CDK-driven spindle formation during prophase I to ensure chromosome integrity during meiosis [PDF]
Cells coordinate spindle formation with DNA repair and morphological modifications to chromosomes prior to their segregation to prevent cell division with damaged chromosomes.
A Hochwagen +51 more
core +12 more sources
Conformational dynamics of the Hop1 HORMA domain reveal a common mechanism with the spindle checkpoint protein Mad2. [PDF]
The HORMA domain is a highly conserved protein-protein interaction module found in eukaryotic signaling proteins including the spindle assembly checkpoint protein Mad2 and the meiotic HORMAD proteins.
Corbett, Kevin D +2 more
core +2 more sources
Synaptonemal complex karyotype of zebrafish [PDF]
Meiotic cells of zebrafish have been prepared to show synaptonemal complexes (SCs) by light and electron microscopy. Completely paired SCs from both spermatocytes and oocytes were measured to produce an SC karyotype. The SC karyotype resembles the somatic karyotype of zebrafish and has no recognisable sex bivalent.
B M N, Wallace, H, Wallace
openaire +2 more sources
The tumor suppressor BRCA1-BARD1 complex localizes to the synaptonemal complex and regulates recombination under meiotic dysfunction in Caenorhabditis elegans. [PDF]
Breast cancer susceptibility gene 1 (BRCA1) and binding partner BRCA1-associated RING domain protein 1 (BARD1) form an essential E3 ubiquitin ligase important for DNA damage repair and homologous recombination. The Caenorhabditis elegans orthologs, BRC-1
Qianyan Li +8 more
doaj +1 more source
In mammals, the synaptonemal complex is a structure required to complete crossover recombination. Although suggested by cytological work, in vivo links between the structural proteins of the synaptonemal complex and the proteins of the recombination ...
Ewelina Bolcun-Filas +7 more
doaj +1 more source

