Structure of immunoglobulin {gamma}2b heavy chain gene cloned from mouse embryo gene library

Autor: Zakut, Rina, Givol, David, Mory, Yves Y.
Zdroj: Nucleic Acids Research; February 1980, Vol. 8 Issue: 3 p453-453, 1p
Abstrakt: A mouse DNA clone containing the constant part of the immunoglobulin γ2b heavy chain was isolated from a mouse gene library. The library was constructed in Charon 4A from a partial EcoRI digest of mouse embryo DNA and was screened with a plasmid (pγ(11)7) containing a cDNA insert of the heavy chain constant region of the plasmacytoma MPC-11 (1). The Charon 4A clone contains a 14 kb insert which is cleaved by EcoRI into a 6.8 kb and 7.2 kb fragments, of which only the 6.8 kb contains the sequence for γ2b heavy chain. Restriction analysis and partial sequence of the insert in py(11)7 enabled us to obtain three fragments corresponding to the 5′ (amino acid 161–302) iiiddle(amino acid 302–443) and 3′ (mostly non coding 107 bp) regions of the constant region. Restriction analysis of the Charon 4A clone and hybridisation to these nick translated fragments revealed that the γ2b constant region gene contains about 1.5 kb and has three intervening sequences.
Databáze: Supplemental Index