The roles of γ1 heavy chain membrane expression and cytoplasmic tail in IgG1 responses
T Kaisho, F Schwenk, K Rajewsky - Science, 1997 - science.org
T Kaisho, F Schwenk, K Rajewsky
Science, 1997•science.orgIn antibody responses, B cells switch from the expression of immunoglobulin (Ig) μ and δ
heavy (H) chains to that of other Ig classes (α, γ, or ɛ), each with a distinct effector function.
Membrane-bound forms of α, γ, and ɛ, but not μ and δ, have highly conserved cytoplasmic
tails. Mutant mice unable to express membrane γ1 H chains or producing tailless γ1 H
chains failed to generate efficient IgG1 responses and IgG1 memory. H chain membrane
expression after class switching is thus required for these functions, and class switching …
heavy (H) chains to that of other Ig classes (α, γ, or ɛ), each with a distinct effector function.
Membrane-bound forms of α, γ, and ɛ, but not μ and δ, have highly conserved cytoplasmic
tails. Mutant mice unable to express membrane γ1 H chains or producing tailless γ1 H
chains failed to generate efficient IgG1 responses and IgG1 memory. H chain membrane
expression after class switching is thus required for these functions, and class switching …
In antibody responses, B cells switch from the expression of immunoglobulin (Ig) μ and δ heavy (H) chains to that of other Ig classes (α, γ, or ɛ), each with a distinct effector function. Membrane-bound forms of α, γ, and ɛ, but not μ and δ, have highly conserved cytoplasmic tails. Mutant mice unable to express membrane γ1 H chains or producing tailless γ1 H chains failed to generate efficient IgG1 responses and IgG1 memory. H chain membrane expression after class switching is thus required for these functions, and class switching equips the B cell antigen receptor with a regulatory cytoplasmic tail that naı̈ve B cells lack.
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