Results 21 to 30 of about 20,554 (213)

The VH gene repertoire of splenic B cells and somatic hypermutation in systemic lupus erythematosus [PDF]

open access: yes, 2003
In systemic lupus erythematosus (SLE) it has been hypothesized that self-reactive B cells arise from virgin B cells that express low-affinity, nonpathogenic germline V genes that are cross-reactive for self and microbial antigens, which convert to high ...
Stott, DI   +11 more
core   +1 more source

Somatic hypermutation signature in B-cell low-grade lymphomas

open access: yesHaematologica, 2008
Background Immunoglobulin gene somatic hypermutation is a biologically relevant and clinically useful prognostic factor in different types of low-grade B-cell lymphomas, including chronic lymphocytic leukemia, mantle cell lymphoma and splenic marginal ...
Lorraine Tracey   +13 more
doaj   +1 more source

Activation-induced cytidine deaminase initiates immunoglobulin gene conversion and hypermutation by a common intermediate. [PDF]

open access: yesPLoS Biology, 2004
Depending on the species and the lymphoid organ, activation-induced cytidine deaminase (AID) expression triggers diversification of the rearranged immunoglobulin (Ig) genes by pseudo V (psiV) gene- templated gene conversion or somatic hypermutation.
Hiroshi Arakawa   +2 more
doaj   +1 more source

kataegis: an R package for identification and visualization of the genomic localized hypermutation regions using high-throughput sequencing

open access: yesBMC Genomics, 2021
Background Genomic localized hypermutation regions were found in cancers, which were reported to be related to the prognosis of cancers. This genomic localized hypermutation is quite different from the usual somatic mutations in the frequency of ...
Xue Lin   +9 more
doaj   +1 more source

Gene conversion in human rearranged immunoglobulin genes [PDF]

open access: yes, 2006
Over the past 20 years, many DNA sequences have been published suggesting that all or part of the V<sub>H</sub> segment of a rearranged immunoglobulin gene may be replaced in vivo. Two different mechanisms appear to be operating. One of these
Darlow, J.M.   +3 more
core   +1 more source

Affinity Maturation Is Impaired by Natural Killer Cell Suppression of Germinal Centers

open access: yesCell Reports, 2018
Summary: Somatic hypermutation of immunoglobulin sequences in germinal center (GC) reactions must be optimized to elicit high-affinity, protective antibodies after vaccination.
Carolyn E. Rydyznski   +6 more
doaj   +1 more source

Nanopore sequencing approach for immunoglobulin gene analysis in chronic lymphocytic leukemia

open access: yesScientific Reports, 2021
The evaluation of the somatic hypermutation of the clonotypic immunoglobulin heavy variable gene has become essential in the therapeutic management in chronic lymphocytic leukemia patients.
Crescenzio Francesco Minervini   +15 more
doaj   +1 more source

AID and Somatic Hypermutation [PDF]

open access: yes, 2010
In response to an assault by foreign organisms, peripheral B cells can change their antibody affinity and isotype by somatically mutating their genomic DNA. The ability of a cell to modify its DNA is exceptional in light of the potential consequences of genetic alterations to cause human disease and cancer. Thus, as expected, this mechanism of antibody
Robert W, Maul, Patricia J, Gearhart
openaire   +2 more sources

Lineage tree analysis of immunoglobulin variable-region gene mutations in autoimmune diseases: chronic activation, normal selection [PDF]

open access: yes, 2006
Autoimmune diseases show high diversity in the affected organs, clinical manifestations and disease dynamics. Yet they all share common features, such as the ectopic germinal centers found in many affected tissues.
Neta S. Zuckerman   +29 more
core   +1 more source

V(D)J Rearrangement Is Dispensable for Producing CDR-H3 Sequence Diversity in a Gene Converting Species

open access: yesFrontiers in Immunology, 2018
An important characteristic of chickens is that the antibody repertoire is based on a single framework, with diversity found mainly in the CDRs of the light and heavy chain variable regions.
Philip A. Leighton   +3 more
doaj   +1 more source

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