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Physical linkage of a human immunoglobulin heavy chain variable region gene segment to diversity and joining region elements

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America; (USA)
Antibody genes are assembled from a series of germ-line gene segments that are juxtaposed during the maturation of B lymphocytes. Although diversification of the adult antibody repertoire results in large part from the combinatorial joining of these gene segments, a restricted set of antibody heavy chain variable (V{sub H}), diversity (D{sub H}), and joining (J{sub H}) region gene segments appears preferentially in the human fetal repertoire. The authors report here that one of these early-expressed V{sub H} elements (termed V{sub H}6) is the most 3' V{sub H} gene segment, positioned 77 kilobases on the 5' side of the J{sub H} locus and immediately adjacent to a set of previously described D{sub H} sequences. In addition to providing a physical map linking human V{sub H}, D{sub H}, and J{sub H} elements, these results support the view that the programmed development of the antibody V{sub H} repertoire is determined in part by the chromosomal position of these gene segments.
OSTI ID:
5478447
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America; (USA), Journal Name: Proceedings of the National Academy of Sciences of the United States of America; (USA) Vol. 85:21; ISSN PNASA; ISSN 0027-8424
Country of Publication:
United States
Language:
English