2d 40KV2D-40 (Immunoglobulin Kappa Variable 2D-40) is a Protein Coding gene. An important paralog of this gene is KV2-28. V region of the variable domain of immunoglobulinKV2D-40 (Immunoglobulin Kappa Variable 2D-40) is a Protein Coding gene. An important paralog of this gene is KV2-28. V region of the variable domain of immunoglobulin