The three eukaryotic RNA polymerases are complex multisubunit enzymes that play a central role in the transcription of nuclear genes. This gene encodes an essential and highly conserved subunit of RNA polymerase II that is shared by the other two eukaryotic DNA-directed RNA polymerases, I and III. Alternative splicing results in multiple transcript variants of this gene. POLR2H (RNA Polymerase II Subunit H) is a Protein Coding gene. Diseases associated with POLR2H include Spherocytosis, Type 5. Among its related pathways are Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 and DNA damage_Role of Brca1 and Brca2 in DNA repair.