Immunoglobulin kappa variable 1-16 (IGKV1-16)

Immunoglobulin kappa variable 1-16 is a gene segment encoding a variable region of the kappa light chain of human antibodies (immunoglobulins), functioning as a component of the antigen-binding site[1]. The variable region, together with a partner variable region of a heavy chain, allows for the vast diversity of antibody specificity in humoral immunity. During B cell development, IGKV1-16 undergoes V-(D)-J recombination and subsequent somatic mutation to contribute to the antibody repertoire and fine-tune antigen recognition. The gene is located on chromosome 2 as part of the human immunoglobulin kappa locus, which contains dozens of V (variable) gene segments[7]. IGKV1-16 is not by itself a therapeutic target, receptor, or enzyme, but forms part of mature antibodies, which mediate immune defense by binding pathogens and triggering effector functions[1][2]. Changes in variable region gene usage, including kappa variable genes, have been studied as indirect markers in B cell malignancies or autoimmune disorders, but IGKV1-16 itself is not a validated biomarker or drug target.\n\nSupporting details:\n- IGKV1-16 is predicted to enable antigen binding activity and is involved in immune response. It is a protein coding gene, located in the immunoglobulin complex, specifically as part of the extracellular region and plasma membrane in its functional antibody context[1].\n- Immunoglobulin light chains (kappa/lambda) differ in structure and have roles in antigen binding diversity. While changes in kappa/lambda ratio and variable region usage can be relevant in disease, individual variable genes such as IGKV1-16 are not direct pharmacological targets[2].\n- Many aliases reflect its various nomenclature systems and sequence annotations[1][7].

Other names

IGKV1-16IGKV116L1Ig kappa chain V-I region BAN

None (not a direct pharmacological target)