Presence of synaptonemal complex protein 1 transversal filament-like protein in human primary spermatocytes

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Presence of synaptonemal complex protein 1 transversal filament-like protein in human primary spermatocytes.

The synaptonemal complex (SC) is involved in the pairing of chromosomes during meiosis. We found that antibodies raised against a protein component (P1) of the mouse synaptonemal complex, mouse SCP1, also identified the SC in human primary spermatocytes. Biopsies from 18 men presented with infertility were evaluated by light-field microscopy and grouped into five categories: normal spermatogene...

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Polo-like kinase is required for synaptonemal complex disassembly and phosphorylation in mouse spermatocytes.

During meiosis, accurate coordination of the completion of homologous recombination and synaptonemal complex (SC) disassembly during the prophase to metaphase I (G2/MI) transition is essential to avoid aneuploid gametes and infertility. Previous studies have shown that kinase activity is required to promote meiotic prophase exit. The first step of the G2/MI transition is the disassembly of the ...

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Mammalian protein SCP1 forms synaptonemal complex-like structures in the absence of meiotic chromosomes.

Synaptonemal complexes (SCs) are evolutionary conserved, meiosis-specific structures that play a central role in synapsis of homologous chromosomes, chiasmata distribution, and chromosome segregation. However, it is still for the most part unclear how SCs do assemble during meiotic prophase. Major components of mammalian SCs are the meiosis-specific proteins SCP1, 2, and 3. To investigate the r...

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Synaptonemal Complex Protein 3 Transcript Analysis in Breast Cancer

BACKGROUND Breast cancer is the most frequent cancer in women. Cancer/Testis antigens are immunogenic proteins ectopically expressed in human neoplasms. Synaptonemal complex protein 3 (SYCP3) belongs to cancer/testis genes family involved in meiotic events and spermatogenesis. The aim of this study was to express analysis of SYCP3 in breast cancer and validate it as a breast cancer biomarker. ...

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ژورنال

عنوان ژورنال: Human Reproduction

سال: 1997

ISSN: 0268-1161,1460-2350

DOI: 10.1093/humrep/12.11.2414