Davis D D, Yoshida K, Kingsbury L, Sakano H
Department of Molecular and Cell Biology, University of California, Berkeley 94720.
J Exp Med. 1991 Mar 1;173(3):743-6. doi: 10.1084/jem.173.3.743.
During the course of analyzing circular DNA in mouse thymocytes, novel recombinants were identified with immunoglobulin heavy chain joining gene and switch region probes. These circles represent excision products of recombination between the heptamer-nonamer motif for V-(D)-J joining and a repetitive sequence for class switching. The molecular mechanisms that generate "hybrid circles" are discussed.
在分析小鼠胸腺细胞中环状DNA的过程中,利用免疫球蛋白重链连接基因和转换区探针鉴定出了新型重组体。这些环状物代表了V-(D)-J连接的七聚体-九聚体基序与类别转换的重复序列之间重组的切除产物。本文讨论了产生“杂交环”的分子机制。