Keratin 18 pseudogene 33 (KRT18P33)

Keratin 18 pseudogene 33 (KRT18P33) is a processed pseudogene related to the type I intermediate filament protein gene, keratin 18 (KRT18). Pseudogenes like KRT18P33 arise via duplication or retrotransposition events and typically lack the ability to encode functional proteins due to mutations or gene truncations. The human genome contains many processed pseudogenes for keratin genes, including dozens for KRT18, scattered across various chromosomes[7]. These pseudogenes are generally considered nonfunctional and are not therapeutic targets, biomarkers, or drug targets; they are also not directly associated with diseases or diagnostic uses[7]. The nomenclature and existence of pseudogenes such as KRT18P33 are mainly of interest for genomic annotation and evolutionary studies rather than biomedical research.