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Immunogold EM examination of Sun2 in mouse spermatocytes. (A) Electron microscopic analysis of a telomere attachment site in pachytene. Ch, chromatin; CE, central element of the SC. (B–D) Electron microscopic immunolocalization of Sun2. Attachment plates are denoted by arrowheads; arrows indicate some of the cytoplasmic fibrils that are attached to the NE. (Scale bar: 100 nm.)
