Immunoglobulin lambda variable (I)-20 (pseudogene) (IGLVI-20)

IGLVI-20 (Immunoglobulin lambda variable (I)-20) is a pseudogene within the immunoglobulin lambda light chain variable region locus on human chromosome 22[3][5]. It is part of the family of genes responsible for the diversity of human antibody light chains but does not encode a functional protein due to its classification as a pseudogene. Functional variable region lambda genes are critical for antibody diversity and antigen recognition, but pseudogenes like IGLVI-20 contribute only indirectly through mechanisms such as gene conversion or recombination in some cases, though for most purposes, they are nonfunctional. "Immunoglobulin lambda variable" genes in general contribute to the specificity and diversity of the adaptive immune response, but IGLVI-20 itself does not encode a functional product and is not considered a therapeutic target[3][5]. Notable points: - The "immunoglobulin lambda variable" gene families include many variable gene segments; only a subset are functional, and IGLVI-20 is a pseudogene[2][5]. - As a pseudogene, IGLVI-20 is not referenced in the literature as a drug or therapeutic target, nor is it involved in known disease pathways or drug interactions[3][5]. - Confusion about targeting may arise from misreading the IG lambda locus, where only functional genes produce light chain proteins involved in B cell receptor and antibody formation[1][2]. - In structured databases and gene summaries, it is explicitly annotated as a pseudogene[3][5].

Other names

IGLV(I)-20IGLVI20V1-6P