Pseudogene similar to part of postmeiotic segregation increased 2-like 1 (PMS2L1)

PMS2L1 (ENSG00000250778) is a pseudogene with sequence homology to the PMS2 gene, which is a member of the DNA mismatch repair family[1]. Pseudogenes are defined as incomplete or nonfunctional copies of genes, usually lacking the ability to encode functional proteins due to disruptions in their sequence or loss of essential regulatory elements[1]. While the functional PMS2 gene is important for repairing DNA mismatches and is associated with Lynch syndrome when mutated, PMS2L1 and related pseudogenes do not participate in these biological pathways. The existence of PMS2 pseudogenes, including PMS2L1, can complicate genetic analyses and diagnostic testing for Lynch syndrome, as they may be mistaken for functional gene variants, leading to false positive or negative results[1][3]. There is no evidence that PMS2L1 is a therapeutic target, disease biomarker, or has any safety concerns, and it should not be considered a receptor, enzyme, or clinically actionable gene. Based on current knowledge and genomic resources, ENSG00000250778 (PMS2L1) is not a drug target, not a functional protein, and not directly implicated in disease—its main relevance is in complicating genetic analyses of the PMS2 gene because of sequence homology and the potential for analytical confusion[1][3].

Other names

PMS2L1PMS2 pseudogenePMS2-like 1

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