Immunoglobulin lambda variable pseudogene

Immunoglobulin lambda variable pseudogenes are DNA sequences that resemble the variable region genes of immunoglobulin lambda light chains but are non-functional due to sequence changes or defects that prevent them from being expressed as a functional protein[1][4]. These pseudogenes are part of the immunoglobulin lambda locus but do not contribute to antibody production and are not expressed by B lymphocytes. Their presence reflects the complex evolutionary history of the immunoglobulin gene loci, which have undergone duplication and mutation events, generating both functional and non-functional gene segments[1][4]. Such pseudogenes do not encode proteins, do not bind antigen, have no role in immune function, and have no current relevance as drug targets or disease markers[1][3][4].\n\nKey additional details:\n- The immunoglobulin lambda locus contains both functional and pseudogene segments; the latter are conventionally assigned Roman numerals or labeled in nomenclature tables as non-functional[1].\n- Common lambda variable pseudogenes do not produce immune receptor proteins and are not implicated in immune signaling, disease, or pharmacology[1][3][4].\n- The designation "ENSG00000231331" corresponds to an Ensembl gene entry for a pseudogene segment in this family, but such entries are often absent from functional gene/protein/drug/biomarker databases[3].\n\nIn summary, immunoglobulin lambda variable group pseudogenes are not therapeutic targets and are not relevant for biomarker or drug interaction analysis in clinical or therapeutic settings.

Other names

Immunoglobulin lambda variable group pseudogeneIGVL pseudogeneIG lambda V pseudogene