The variability, arrangement, and rearrangement of immunoglobulin genes

1980 ◽  
Vol 58 (3) ◽  
pp. 176-187 ◽  
Author(s):  
T. H. Rabbitts ◽  
P. H. Hamlyn ◽  
G. Matthyssens ◽  
B. A. Roe

The multiplicity of heavy-chain variable-region (VH) genes in mouse and human DNA has been estimated using a mouse heavy- (H) chain cDNA clone. We found about 10 hybridization components in mouse DNA and about 20 components in human DNA. Cross-hybridization studies of variable region (V) genes indicate that these components represent the numbers of genes within the VH subgroups of each of these species. The arrangement and rearrangement of the H-chain γ subclasses have been studied in order to assess possible mechanisms of the H-chain switch. Evidence has been found for rearrangement events involving the γ2a and γ2b constant-region (CH) genes in DNA from cells making IgG2a and IgG2b respectively. In addition we found that cells making IgG2a lack detectable genes for γ1 and γ2b. Both sets of observations are discussed in relation to H-chain diversity and the switch.

1993 ◽  
Vol 13 (3) ◽  
pp. 1547-1553 ◽  
Author(s):  
P Matthias ◽  
D Baltimore

The transcription of immunoglobulin genes is controlled by variable region promoters and by enhancers, both of which are lymphoid specific. Because immunoglobulin genes are subject to an extremely complex regulation, we anticipated that there might be additional control elements for these genes. We therefore sought additional enhancers and demonstrate here that there is indeed another weak transcriptional enhancer just 3' to the mouse alpha constant region. This novel immunoglobulin enhancer is lymphoid specific and at two positions can bind members of the Oct family of transcription factors.


1993 ◽  
Vol 13 (3) ◽  
pp. 1547-1553
Author(s):  
P Matthias ◽  
D Baltimore

The transcription of immunoglobulin genes is controlled by variable region promoters and by enhancers, both of which are lymphoid specific. Because immunoglobulin genes are subject to an extremely complex regulation, we anticipated that there might be additional control elements for these genes. We therefore sought additional enhancers and demonstrate here that there is indeed another weak transcriptional enhancer just 3' to the mouse alpha constant region. This novel immunoglobulin enhancer is lymphoid specific and at two positions can bind members of the Oct family of transcription factors.


2021 ◽  
Vol 71 (4) ◽  
pp. 245-254
Author(s):  
Mayuko Nakagawa ◽  
Masahide Yazaki ◽  
Fuyuki Kametani ◽  
Nagaaki Katoh ◽  
Tsuneaki Yoshinaga ◽  
...  

Biochemistry ◽  
1977 ◽  
Vol 16 (6) ◽  
pp. 1170-1175 ◽  
Author(s):  
Mark Vrana ◽  
Stuart Rudikoff ◽  
Michael Potter

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