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Phenotype Image Detail
Image
Caption Analysis of synaptonemal complex (SC) formation in Sycp2tm1Jw/Sycp2tm1Jw spermatocytes. Surface-spread nuclei were stained with anti-SYCP3 antibodies, CREST and DAPl, or they were stained with silver nitrate. A: SYCP3 labels SCs in wild-type (+/+) spermatocytes. (B) SYCP3 fails to incorporate into SCs in Sycp2tm1Jw/Sycp2tm1Jw (-/-) spermatocytes. SYCP3 forms several large protein aggregates (arrows). In addition, SYCP3 also forms many small nuclear foci (arrowhead). C: SCs in wild-type spermatocytes are readily stained with silver nitrate. D: No silver-stained SC structures are visible by light microscopy in mutant spermatocytes. E: EM analysis of a wild-type spermatocyte. A tripartite structure of SC is formed by one CE (arrow) that connects with two electron-dense lateral elements (LEs). This SC is attached to the nuclear envelope (NE). Note the condensed chromatin around the SC. F: EM analysis of a mutant spermatocyte. Transverse filaments (TFs) form a central element (CE)-like structure (arrow). Two rows of chromatin grains align in parallel with the CE-like structure to form a SC-like structure. Bars, 0.2 m.
Copyright This image is from Yang F, J Cell Biol 2006 May 22;173(4):497-507, and is displayed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License. J:111287
Associated
Alleles
Symbol Name
Sycp2tm1Jw synaptonemal complex protein 2; targeted mutation 1, Jeremy Wang
Associated
Genotypes
Allelic Composition Genetic Background
Sycp2tm1Jw/Sycp2tm1Jw involves: 129S4/SvJae * C57BL/6

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB), Gene Ontology (GO)
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last database update
11/26/2019
MGI 6.14
The Jackson Laboratory