Immunoglobulin kappa variable 2-18 (IGKV2-18)

Immunoglobulin kappa variable 2-18 (IGKV2-18) is a member of the kappa light chain variable region gene family within the immunoglobulin superfamily. These genes code for the variable domain of the kappa light chain in antibodies, which together with the heavy chain variable domain, forms the antigen-binding site of immunoglobulins[1]. IGKV2-18 is listed as a pseudogene in the curated nomenclature of human immunoglobulin kappa genes, meaning it does not encode a functional protein due to defects in its coding or regulatory sequences[4]. While immunoglobulin variable genes are crucial for the diversity of antibody responses and the adaptive immune system's ability to recognize antigens, IGKV2-18 itself is not a protein-coding gene in humans and does not represent an actionable therapeutic target or biomarker[4]. In clinical or therapeutic contexts, mutations, rearrangements, or usage of immunoglobulin variable region genes can be studied for B-cell clonality or immune repertoire analysis, but IGKV2-18 is not known to have direct implications for therapy or diagnosis[1][4]. Summary: IGKV2-18 is a *pseudogene* belonging to the antibody kappa light chain variable domain family in humans, not a standalone protein, receptor, or actionable therapeutic target. It is not typically associated with drug targeting, clinical biomarkers, or direct disease mechanisms.

Other names

A29IGKV218IGKV2-18