Immunoglobulin heavy variable 2-70 (IGHV2-70)

Immunoglobulin heavy variable 2-70 is a protein-coding gene segment encoding the variable region of the heavy chain of immunoglobulins (antibodies)[2][5][6]. The variable region participates directly in antigen recognition, contributing to the remarkable diversity and specificity of the antibody repertoire generated by B lymphocytes. Each immunoglobulin molecule's antigen-binding site is composed of a variable domain from one heavy chain and its associated light chain. The sequence diversity is created through V-(D)-J recombination and further enhanced by somatic hypermutation, which together allow adaptation and maturation of the humoral immune response upon antigen exposure[2][6]. Polymorphism in IGHV genes, including IGHV2-70, underlies inter-individual variability in antibody-mediated responses to infectious agents, autoimmune diseases, vaccine outcomes, and B cell malignancies[3]. While not a classical drug target, IGHV2-70 is essential for immune diversity and is used as a molecular marker in certain research and diagnostic contexts[3][5][6].

Other names

IGHV2-70Ig heavy chain V-II region CORIg heavy chain V-II region DAWIg heavy chain V-II region OUIg heavy chain V-II region SESSIGHV270VHImmunoglobulin heavy chain variable region

null (No approved drugs act by binding this region as a direct pharmacological target; its function is to provide diversity to antibody recognition.)